./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V --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 --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:07:25,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:07:25,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:07:25,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:07:25,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:07:25,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:07:25,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:07:25,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:07:25,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:07:25,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:07:25,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:07:25,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:07:25,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:07:25,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:07:25,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:07:25,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:07:25,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:07:25,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:07:25,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:07:25,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:07:25,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:07:25,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:07:25,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:07:25,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:07:25,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:07:25,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:07:25,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:07:25,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:07:25,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:07:25,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:07:25,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:07:25,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:07:25,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:07:25,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:07:25,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:07:25,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:07:25,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:07:25,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:07:25,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:07:25,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:07:25,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:07:25,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 03:07:25,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:07:25,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:07:25,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:07:25,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:07:25,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:07:25,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:07:25,800 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:07:25,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:07:25,801 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:07:25,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:07:25,802 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:07:25,802 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:07:25,802 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:07:25,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:07:25,803 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:07:25,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:07:25,803 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:07:25,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:07:25,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:07:25,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:07:25,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:07:25,805 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:07:25,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:07:25,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:07:25,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:07:25,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:07:25,806 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:07:25,807 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:07:25,807 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:07:25,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:07:25,808 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:07:25,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:07:25,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:07:25,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:07:25,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:07:25,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:07:25,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:07:25,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:07:25,810 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:07:25,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:07:25,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:07:25,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:07:25,813 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2021-11-23 03:07:26,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:07:26,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:07:26,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:07:26,144 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:07:26,144 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:07:26,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-23 03:07:26,226 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/data/219900cd2/98140c24d30243ca8a53e225504d2310/FLAGc99c03b13 [2021-11-23 03:07:26,721 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:07:26,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-23 03:07:26,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/data/219900cd2/98140c24d30243ca8a53e225504d2310/FLAGc99c03b13 [2021-11-23 03:07:27,042 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/data/219900cd2/98140c24d30243ca8a53e225504d2310 [2021-11-23 03:07:27,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:07:27,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:07:27,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:07:27,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:07:27,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:07:27,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43024844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27, skipping insertion in model container [2021-11-23 03:07:27,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:07:27,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:07:27,481 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-23 03:07:27,487 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-23 03:07:27,490 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-23 03:07:27,491 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-23 03:07:27,494 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-23 03:07:27,495 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-23 03:07:27,497 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-23 03:07:27,498 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-23 03:07:27,499 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-23 03:07:27,501 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-23 03:07:27,503 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-23 03:07:27,507 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-23 03:07:27,508 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-23 03:07:27,521 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:07:27,529 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:07:27,574 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-23 03:07:27,577 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-23 03:07:27,579 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-23 03:07:27,580 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-23 03:07:27,583 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-23 03:07:27,584 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-23 03:07:27,586 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-23 03:07:27,588 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-23 03:07:27,589 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-23 03:07:27,590 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-23 03:07:27,592 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-23 03:07:27,593 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-23 03:07:27,594 WARN L230 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_27fc71a9-4106-4445-a555-fefb51fb8ae5/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-23 03:07:27,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:07:27,626 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:07:27,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27 WrapperNode [2021-11-23 03:07:27,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:07:27,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:07:27,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:07:27,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:07:27,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,679 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2021-11-23 03:07:27,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:07:27,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:07:27,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:07:27,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:07:27,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:07:27,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:07:27,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:07:27,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:07:27,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (1/1) ... [2021-11-23 03:07:27,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:07:27,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:07:27,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:07:27,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:07:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:07:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:07:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:07:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:07:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:07:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:07:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:07:27,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:07:27,919 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:07:27,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:07:28,406 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:07:28,460 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:07:28,460 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-23 03:07:28,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:28 BoogieIcfgContainer [2021-11-23 03:07:28,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:07:28,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:07:28,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:07:28,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:07:28,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:27" (1/3) ... [2021-11-23 03:07:28,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1bba73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:28, skipping insertion in model container [2021-11-23 03:07:28,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:27" (2/3) ... [2021-11-23 03:07:28,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b1bba73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:28, skipping insertion in model container [2021-11-23 03:07:28,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:28" (3/3) ... [2021-11-23 03:07:28,472 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2021-11-23 03:07:28,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:07:28,478 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-23 03:07:28,524 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:07:28,531 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:07:28,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-23 03:07:28,551 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) [2021-11-23 03:07:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 03:07:28,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:28,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-23 03:07:28,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash 15008, now seen corresponding path program 1 times [2021-11-23 03:07:28,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:28,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102234469] [2021-11-23 03:07:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:28,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:28,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:28,748 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:28,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102234469] [2021-11-23 03:07:28,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102234469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:28,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:28,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:07:28,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572435877] [2021-11-23 03:07:28,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:28,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:28,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:28,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:28,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:28,802 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) [2021-11-23 03:07:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:29,051 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2021-11-23 03:07:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:29,055 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 [2021-11-23 03:07:29,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:29,069 INFO L225 Difference]: With dead ends: 177 [2021-11-23 03:07:29,069 INFO L226 Difference]: Without dead ends: 175 [2021-11-23 03:07:29,071 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:29,076 INFO L933 BasicCegarLoop]: 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 [2021-11-23 03:07:29,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:29,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-23 03:07:29,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2021-11-23 03:07:29,134 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) [2021-11-23 03:07:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 182 transitions. [2021-11-23 03:07:29,138 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 182 transitions. Word has length 2 [2021-11-23 03:07:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:29,138 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 182 transitions. [2021-11-23 03:07:29,139 INFO L471 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) [2021-11-23 03:07:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 182 transitions. [2021-11-23 03:07:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 03:07:29,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:29,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-23 03:07:29,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:07:29,140 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:29,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:29,141 INFO L85 PathProgramCache]: Analyzing trace with hash 15009, now seen corresponding path program 1 times [2021-11-23 03:07:29,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:29,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123785811] [2021-11-23 03:07:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:29,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:29,212 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:29,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123785811] [2021-11-23 03:07:29,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123785811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:29,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:29,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:07:29,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547359828] [2021-11-23 03:07:29,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:29,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:29,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:29,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:29,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:29,223 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) [2021-11-23 03:07:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:29,440 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2021-11-23 03:07:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:29,440 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 [2021-11-23 03:07:29,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:29,445 INFO L225 Difference]: With dead ends: 198 [2021-11-23 03:07:29,445 INFO L226 Difference]: Without dead ends: 198 [2021-11-23 03:07:29,446 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:29,448 INFO L933 BasicCegarLoop]: 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 [2021-11-23 03:07:29,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 120 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-23 03:07:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2021-11-23 03:07:29,474 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) [2021-11-23 03:07:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 200 transitions. [2021-11-23 03:07:29,480 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 200 transitions. Word has length 2 [2021-11-23 03:07:29,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:29,481 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 200 transitions. [2021-11-23 03:07:29,481 INFO L471 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) [2021-11-23 03:07:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 200 transitions. [2021-11-23 03:07:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 03:07:29,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:29,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 03:07:29,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:07:29,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash 447079752, now seen corresponding path program 1 times [2021-11-23 03:07:29,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:29,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049983695] [2021-11-23 03:07:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:29,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:29,554 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049983695] [2021-11-23 03:07:29,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049983695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:29,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:29,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:07:29,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272878601] [2021-11-23 03:07:29,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:29,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:29,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:29,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:29,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:29,558 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) [2021-11-23 03:07:29,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:29,639 INFO L93 Difference]: Finished difference Result 194 states and 203 transitions. [2021-11-23 03:07:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:29,640 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 [2021-11-23 03:07:29,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:29,641 INFO L225 Difference]: With dead ends: 194 [2021-11-23 03:07:29,641 INFO L226 Difference]: Without dead ends: 194 [2021-11-23 03:07:29,642 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:29,645 INFO L933 BasicCegarLoop]: 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 [2021-11-23 03:07:29,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 160 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-23 03:07:29,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 177. [2021-11-23 03:07:29,670 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) [2021-11-23 03:07:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2021-11-23 03:07:29,673 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 5 [2021-11-23 03:07:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:29,675 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2021-11-23 03:07:29,675 INFO L471 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) [2021-11-23 03:07:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2021-11-23 03:07:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:07:29,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:29,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:29,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:07:29,677 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:29,679 INFO L85 PathProgramCache]: Analyzing trace with hash -432269896, now seen corresponding path program 1 times [2021-11-23 03:07:29,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:29,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040362616] [2021-11-23 03:07:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:29,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:29,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:29,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040362616] [2021-11-23 03:07:29,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040362616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:29,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:29,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:29,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079879471] [2021-11-23 03:07:29,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:29,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:29,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:29,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:29,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:29,767 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) [2021-11-23 03:07:30,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:30,002 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2021-11-23 03:07:30,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:30,002 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 [2021-11-23 03:07:30,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:30,003 INFO L225 Difference]: With dead ends: 176 [2021-11-23 03:07:30,004 INFO L226 Difference]: Without dead ends: 176 [2021-11-23 03:07:30,004 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:30,006 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 3 mSDsluCounter, 294 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 [2021-11-23 03:07:30,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 425 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:30,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-23 03:07:30,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-11-23 03:07:30,016 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) [2021-11-23 03:07:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2021-11-23 03:07:30,018 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 10 [2021-11-23 03:07:30,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:30,018 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2021-11-23 03:07:30,018 INFO L471 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) [2021-11-23 03:07:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2021-11-23 03:07:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 03:07:30,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:30,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:30,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:07:30,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:30,023 INFO L85 PathProgramCache]: Analyzing trace with hash -432269895, now seen corresponding path program 1 times [2021-11-23 03:07:30,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:30,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311686836] [2021-11-23 03:07:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:30,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:30,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:30,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311686836] [2021-11-23 03:07:30,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311686836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:30,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:30,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:30,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876017493] [2021-11-23 03:07:30,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:30,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:30,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:30,189 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) [2021-11-23 03:07:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:30,420 INFO L93 Difference]: Finished difference Result 175 states and 195 transitions. [2021-11-23 03:07:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:30,421 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 [2021-11-23 03:07:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:30,422 INFO L225 Difference]: With dead ends: 175 [2021-11-23 03:07:30,422 INFO L226 Difference]: Without dead ends: 175 [2021-11-23 03:07:30,422 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:30,423 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 303 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 [2021-11-23 03:07:30,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:30,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-23 03:07:30,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-11-23 03:07:30,427 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) [2021-11-23 03:07:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 195 transitions. [2021-11-23 03:07:30,428 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 195 transitions. Word has length 10 [2021-11-23 03:07:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:30,428 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 195 transitions. [2021-11-23 03:07:30,428 INFO L471 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) [2021-11-23 03:07:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 195 transitions. [2021-11-23 03:07:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:07:30,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:30,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:30,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:07:30,429 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:30,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863745, now seen corresponding path program 1 times [2021-11-23 03:07:30,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:30,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788041966] [2021-11-23 03:07:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:30,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:30,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:30,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788041966] [2021-11-23 03:07:30,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788041966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:30,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:30,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:07:30,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351597160] [2021-11-23 03:07:30,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:30,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:07:30,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:07:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:07:30,611 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) [2021-11-23 03:07:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:30,966 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2021-11-23 03:07:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:07:30,967 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 [2021-11-23 03:07:30,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:30,968 INFO L225 Difference]: With dead ends: 174 [2021-11-23 03:07:30,968 INFO L226 Difference]: Without dead ends: 174 [2021-11-23 03:07:30,969 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:30,970 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 148 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:30,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 530 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:07:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-23 03:07:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-23 03:07:30,974 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) [2021-11-23 03:07:30,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2021-11-23 03:07:30,975 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2021-11-23 03:07:30,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:30,975 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2021-11-23 03:07:30,975 INFO L471 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) [2021-11-23 03:07:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2021-11-23 03:07:30,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:07:30,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:30,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:30,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:07:30,976 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:30,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:30,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1200863746, now seen corresponding path program 1 times [2021-11-23 03:07:30,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:30,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502200527] [2021-11-23 03:07:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:30,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:31,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:31,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502200527] [2021-11-23 03:07:31,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502200527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:31,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:31,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:07:31,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957361361] [2021-11-23 03:07:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:31,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:07:31,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:07:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:07:31,131 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) [2021-11-23 03:07:31,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:31,661 INFO L93 Difference]: Finished difference Result 173 states and 193 transitions. [2021-11-23 03:07:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:07:31,676 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 [2021-11-23 03:07:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:31,677 INFO L225 Difference]: With dead ends: 173 [2021-11-23 03:07:31,677 INFO L226 Difference]: Without dead ends: 173 [2021-11-23 03:07:31,677 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:31,678 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 145 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:31,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 435 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:07:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-23 03:07:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-23 03:07:31,682 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) [2021-11-23 03:07:31,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2021-11-23 03:07:31,684 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 12 [2021-11-23 03:07:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:31,684 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2021-11-23 03:07:31,684 INFO L471 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) [2021-11-23 03:07:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2021-11-23 03:07:31,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:07:31,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:31,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:31,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:07:31,686 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:31,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash 678271813, now seen corresponding path program 1 times [2021-11-23 03:07:31,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:31,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796136385] [2021-11-23 03:07:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:31,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:31,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:31,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796136385] [2021-11-23 03:07:31,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796136385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:31,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:31,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:07:31,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013983434] [2021-11-23 03:07:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:31,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:31,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:31,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:31,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:31,712 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) [2021-11-23 03:07:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:31,754 INFO L93 Difference]: Finished difference Result 174 states and 194 transitions. [2021-11-23 03:07:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:31,755 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 [2021-11-23 03:07:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:31,756 INFO L225 Difference]: With dead ends: 174 [2021-11-23 03:07:31,756 INFO L226 Difference]: Without dead ends: 174 [2021-11-23 03:07:31,757 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:31,758 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 157 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 [2021-11-23 03:07:31,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:07:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-23 03:07:31,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-23 03:07:31,762 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) [2021-11-23 03:07:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2021-11-23 03:07:31,763 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 12 [2021-11-23 03:07:31,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:31,763 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2021-11-23 03:07:31,764 INFO L471 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) [2021-11-23 03:07:31,764 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2021-11-23 03:07:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:07:31,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:31,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:31,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:07:31,765 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:31,766 INFO L85 PathProgramCache]: Analyzing trace with hash -447972018, now seen corresponding path program 1 times [2021-11-23 03:07:31,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:31,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300311283] [2021-11-23 03:07:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:31,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:31,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:31,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300311283] [2021-11-23 03:07:31,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300311283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:31,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:31,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:07:31,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787902542] [2021-11-23 03:07:31,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:31,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:31,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:31,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:31,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:31,819 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) [2021-11-23 03:07:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:31,970 INFO L93 Difference]: Finished difference Result 258 states and 283 transitions. [2021-11-23 03:07:31,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:07:31,971 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 [2021-11-23 03:07:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:31,991 INFO L225 Difference]: With dead ends: 258 [2021-11-23 03:07:31,991 INFO L226 Difference]: Without dead ends: 258 [2021-11-23 03:07:31,992 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:31,993 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 170 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:31,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 355 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-23 03:07:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 171. [2021-11-23 03:07:31,997 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) [2021-11-23 03:07:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 191 transitions. [2021-11-23 03:07:31,998 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 191 transitions. Word has length 13 [2021-11-23 03:07:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:31,998 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 191 transitions. [2021-11-23 03:07:31,998 INFO L471 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) [2021-11-23 03:07:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 191 transitions. [2021-11-23 03:07:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:07:31,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:31,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:31,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:07:32,000 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:32,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1118637745, now seen corresponding path program 1 times [2021-11-23 03:07:32,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:32,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128937316] [2021-11-23 03:07:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:32,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:32,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:32,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128937316] [2021-11-23 03:07:32,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128937316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:32,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:32,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:32,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268460151] [2021-11-23 03:07:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:32,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:07:32,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:07:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:07:32,037 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) [2021-11-23 03:07:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:32,198 INFO L93 Difference]: Finished difference Result 258 states and 282 transitions. [2021-11-23 03:07:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:32,199 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 [2021-11-23 03:07:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:32,205 INFO L225 Difference]: With dead ends: 258 [2021-11-23 03:07:32,206 INFO L226 Difference]: Without dead ends: 258 [2021-11-23 03:07:32,206 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:32,208 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 86 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:32,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 358 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:32,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-23 03:07:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 173. [2021-11-23 03:07:32,224 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) [2021-11-23 03:07:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 193 transitions. [2021-11-23 03:07:32,225 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 193 transitions. Word has length 16 [2021-11-23 03:07:32,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:32,226 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 193 transitions. [2021-11-23 03:07:32,229 INFO L471 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) [2021-11-23 03:07:32,229 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 193 transitions. [2021-11-23 03:07:32,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:07:32,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:32,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:32,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:07:32,231 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:32,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:32,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385624, now seen corresponding path program 1 times [2021-11-23 03:07:32,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:32,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838834317] [2021-11-23 03:07:32,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:32,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:32,282 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:32,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838834317] [2021-11-23 03:07:32,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838834317] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:32,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:32,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:07:32,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710183518] [2021-11-23 03:07:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:32,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:07:32,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:07:32,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:07:32,285 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), 4 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) [2021-11-23 03:07:32,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:32,442 INFO L93 Difference]: Finished difference Result 166 states and 185 transitions. [2021-11-23 03:07:32,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:07:32,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 [2021-11-23 03:07:32,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:32,444 INFO L225 Difference]: With dead ends: 166 [2021-11-23 03:07:32,444 INFO L226 Difference]: Without dead ends: 166 [2021-11-23 03:07:32,444 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:32,444 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 221 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:32,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 84 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:32,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-23 03:07:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2021-11-23 03:07:32,447 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) [2021-11-23 03:07:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 183 transitions. [2021-11-23 03:07:32,448 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 183 transitions. Word has length 17 [2021-11-23 03:07:32,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:32,448 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 183 transitions. [2021-11-23 03:07:32,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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) [2021-11-23 03:07:32,448 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 183 transitions. [2021-11-23 03:07:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:07:32,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:32,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:32,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:07:32,449 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:32,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1282385625, now seen corresponding path program 1 times [2021-11-23 03:07:32,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:32,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316742896] [2021-11-23 03:07:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:32,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:32,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:32,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:32,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316742896] [2021-11-23 03:07:32,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316742896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:32,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:32,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:07:32,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839915324] [2021-11-23 03:07:32,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:32,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:07:32,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:32,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:07:32,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:07:32,501 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) [2021-11-23 03:07:32,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:32,689 INFO L93 Difference]: Finished difference Result 216 states and 228 transitions. [2021-11-23 03:07:32,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:07:32,689 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 [2021-11-23 03:07:32,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:32,691 INFO L225 Difference]: With dead ends: 216 [2021-11-23 03:07:32,691 INFO L226 Difference]: Without dead ends: 216 [2021-11-23 03:07:32,691 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:32,692 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 205 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:32,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 154 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:32,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-23 03:07:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 182. [2021-11-23 03:07:32,697 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) [2021-11-23 03:07:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 215 transitions. [2021-11-23 03:07:32,698 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 215 transitions. Word has length 17 [2021-11-23 03:07:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:32,698 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 215 transitions. [2021-11-23 03:07:32,699 INFO L471 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) [2021-11-23 03:07:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 215 transitions. [2021-11-23 03:07:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:07:32,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:32,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:32,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 03:07:32,700 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash -282688741, now seen corresponding path program 1 times [2021-11-23 03:07:32,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:32,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846021387] [2021-11-23 03:07:32,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:32,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:32,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846021387] [2021-11-23 03:07:32,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846021387] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:32,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:32,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:32,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317263062] [2021-11-23 03:07:32,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:32,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:32,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:32,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:32,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:32,738 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) [2021-11-23 03:07:32,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:32,912 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2021-11-23 03:07:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:32,913 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 [2021-11-23 03:07:32,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:32,914 INFO L225 Difference]: With dead ends: 181 [2021-11-23 03:07:32,914 INFO L226 Difference]: Without dead ends: 181 [2021-11-23 03:07:32,915 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:32,915 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 6 mSDsluCounter, 257 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 [2021-11-23 03:07:32,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 368 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:32,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-23 03:07:32,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-23 03:07:32,924 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) [2021-11-23 03:07:32,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2021-11-23 03:07:32,925 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 19 [2021-11-23 03:07:32,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:32,925 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2021-11-23 03:07:32,925 INFO L471 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) [2021-11-23 03:07:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2021-11-23 03:07:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:07:32,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:32,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:32,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:07:32,930 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash -282688740, now seen corresponding path program 1 times [2021-11-23 03:07:32,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:32,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236682734] [2021-11-23 03:07:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:32,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:33,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:33,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236682734] [2021-11-23 03:07:33,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236682734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:33,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:33,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:33,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395469088] [2021-11-23 03:07:33,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:33,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:33,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:33,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:33,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:33,030 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) [2021-11-23 03:07:33,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:33,213 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2021-11-23 03:07:33,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:33,214 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 [2021-11-23 03:07:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:33,215 INFO L225 Difference]: With dead ends: 180 [2021-11-23 03:07:33,215 INFO L226 Difference]: Without dead ends: 180 [2021-11-23 03:07:33,215 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:33,216 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 3 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:33,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 355 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-23 03:07:33,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-23 03:07:33,222 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) [2021-11-23 03:07:33,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 211 transitions. [2021-11-23 03:07:33,223 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 211 transitions. Word has length 19 [2021-11-23 03:07:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:33,223 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 211 transitions. [2021-11-23 03:07:33,223 INFO L471 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) [2021-11-23 03:07:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 211 transitions. [2021-11-23 03:07:33,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:07:33,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:33,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:33,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 03:07:33,225 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:33,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:33,226 INFO L85 PathProgramCache]: Analyzing trace with hash -282972339, now seen corresponding path program 1 times [2021-11-23 03:07:33,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:33,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735891879] [2021-11-23 03:07:33,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:33,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:33,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:33,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735891879] [2021-11-23 03:07:33,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735891879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:33,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:33,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:07:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445312762] [2021-11-23 03:07:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:33,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:07:33,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:07:33,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:07:33,267 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) [2021-11-23 03:07:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:33,401 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2021-11-23 03:07:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:07:33,401 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 [2021-11-23 03:07:33,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:33,403 INFO L225 Difference]: With dead ends: 208 [2021-11-23 03:07:33,403 INFO L226 Difference]: Without dead ends: 208 [2021-11-23 03:07:33,403 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:33,404 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 192 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:33,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 204 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-23 03:07:33,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2021-11-23 03:07:33,413 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) [2021-11-23 03:07:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2021-11-23 03:07:33,416 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 19 [2021-11-23 03:07:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:33,417 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2021-11-23 03:07:33,417 INFO L471 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) [2021-11-23 03:07:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2021-11-23 03:07:33,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 03:07:33,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:33,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:33,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 03:07:33,419 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:33,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590815, now seen corresponding path program 1 times [2021-11-23 03:07:33,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:33,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219616433] [2021-11-23 03:07:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:33,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:33,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:33,542 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:33,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219616433] [2021-11-23 03:07:33,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219616433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:33,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:33,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:07:33,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043975113] [2021-11-23 03:07:33,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:33,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:07:33,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:07:33,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:07:33,547 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) [2021-11-23 03:07:33,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:33,842 INFO L93 Difference]: Finished difference Result 177 states and 207 transitions. [2021-11-23 03:07:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:07:33,843 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 [2021-11-23 03:07:33,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:33,844 INFO L225 Difference]: With dead ends: 177 [2021-11-23 03:07:33,844 INFO L226 Difference]: Without dead ends: 177 [2021-11-23 03:07:33,844 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:33,845 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 211 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:33,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 255 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:33,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-11-23 03:07:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2021-11-23 03:07:33,849 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) [2021-11-23 03:07:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 207 transitions. [2021-11-23 03:07:33,853 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 207 transitions. Word has length 21 [2021-11-23 03:07:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:33,854 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 207 transitions. [2021-11-23 03:07:33,854 INFO L471 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) [2021-11-23 03:07:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 207 transitions. [2021-11-23 03:07:33,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 03:07:33,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:33,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:07:33,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 03:07:33,857 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:33,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:33,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1080590814, now seen corresponding path program 1 times [2021-11-23 03:07:33,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:33,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145029122] [2021-11-23 03:07:33,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:33,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:34,015 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:34,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145029122] [2021-11-23 03:07:34,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145029122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:34,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:34,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:07:34,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326813557] [2021-11-23 03:07:34,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:34,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:07:34,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:07:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:07:34,017 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) [2021-11-23 03:07:34,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:34,495 INFO L93 Difference]: Finished difference Result 168 states and 198 transitions. [2021-11-23 03:07:34,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:07:34,496 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 [2021-11-23 03:07:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:34,497 INFO L225 Difference]: With dead ends: 168 [2021-11-23 03:07:34,497 INFO L226 Difference]: Without dead ends: 168 [2021-11-23 03:07:34,498 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:34,498 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 217 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:34,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 290 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:07:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-23 03:07:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 161. [2021-11-23 03:07:34,502 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) [2021-11-23 03:07:34,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2021-11-23 03:07:34,503 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 21 [2021-11-23 03:07:34,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:34,503 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2021-11-23 03:07:34,504 INFO L471 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) [2021-11-23 03:07:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2021-11-23 03:07:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:07:34,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:34,505 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:34,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 03:07:34,505 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:34,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 934315297, now seen corresponding path program 1 times [2021-11-23 03:07:34,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:34,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787028405] [2021-11-23 03:07:34,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:34,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:34,597 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:34,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787028405] [2021-11-23 03:07:34,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787028405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:34,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:34,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:07:34,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788926035] [2021-11-23 03:07:34,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:34,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:07:34,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:07:34,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:07:34,599 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 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) [2021-11-23 03:07:34,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:34,773 INFO L93 Difference]: Finished difference Result 160 states and 189 transitions. [2021-11-23 03:07:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:07:34,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 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 [2021-11-23 03:07:34,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:34,774 INFO L225 Difference]: With dead ends: 160 [2021-11-23 03:07:34,774 INFO L226 Difference]: Without dead ends: 160 [2021-11-23 03:07:34,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:07:34,775 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 306 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:34,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 136 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-23 03:07:34,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2021-11-23 03:07:34,779 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) [2021-11-23 03:07:34,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2021-11-23 03:07:34,780 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 23 [2021-11-23 03:07:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:34,780 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2021-11-23 03:07:34,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 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) [2021-11-23 03:07:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2021-11-23 03:07:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:07:34,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:34,781 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:34,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 03:07:34,782 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:34,782 INFO L85 PathProgramCache]: Analyzing trace with hash -624849616, now seen corresponding path program 1 times [2021-11-23 03:07:34,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:34,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895460696] [2021-11-23 03:07:34,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:34,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:34,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895460696] [2021-11-23 03:07:34,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895460696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:34,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:34,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:07:34,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759151535] [2021-11-23 03:07:34,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:34,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:34,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:34,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:34,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:34,821 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) [2021-11-23 03:07:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:34,867 INFO L93 Difference]: Finished difference Result 223 states and 266 transitions. [2021-11-23 03:07:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:34,868 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 [2021-11-23 03:07:34,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:34,869 INFO L225 Difference]: With dead ends: 223 [2021-11-23 03:07:34,870 INFO L226 Difference]: Without dead ends: 223 [2021-11-23 03:07:34,870 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:34,871 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 47 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:34,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 211 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:07:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-23 03:07:34,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 161. [2021-11-23 03:07:34,876 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) [2021-11-23 03:07:34,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2021-11-23 03:07:34,877 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 24 [2021-11-23 03:07:34,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:34,878 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2021-11-23 03:07:34,878 INFO L471 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) [2021-11-23 03:07:34,878 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2021-11-23 03:07:34,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:07:34,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:34,879 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:34,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 03:07:34,879 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:34,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash -624846859, now seen corresponding path program 1 times [2021-11-23 03:07:34,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:34,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899738011] [2021-11-23 03:07:34,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:34,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:34,912 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:34,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899738011] [2021-11-23 03:07:34,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899738011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:34,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:34,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:07:34,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244034446] [2021-11-23 03:07:34,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:34,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:07:34,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:34,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:07:34,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:07:34,914 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) [2021-11-23 03:07:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:34,963 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2021-11-23 03:07:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:07:34,963 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 [2021-11-23 03:07:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:34,965 INFO L225 Difference]: With dead ends: 159 [2021-11-23 03:07:34,965 INFO L226 Difference]: Without dead ends: 159 [2021-11-23 03:07:34,965 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:34,966 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 18 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:34,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 185 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:07:34,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-23 03:07:34,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-11-23 03:07:34,974 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) [2021-11-23 03:07:34,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2021-11-23 03:07:34,975 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 24 [2021-11-23 03:07:34,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:34,975 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2021-11-23 03:07:34,975 INFO L471 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) [2021-11-23 03:07:34,975 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2021-11-23 03:07:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 03:07:34,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:34,978 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:34,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 03:07:34,978 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:34,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:34,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2104588190, now seen corresponding path program 1 times [2021-11-23 03:07:34,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:34,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977008795] [2021-11-23 03:07:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:34,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:35,062 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:35,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977008795] [2021-11-23 03:07:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977008795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:35,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:07:35,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544392198] [2021-11-23 03:07:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:35,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:07:35,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:35,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:07:35,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:07:35,068 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) [2021-11-23 03:07:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:35,324 INFO L93 Difference]: Finished difference Result 255 states and 292 transitions. [2021-11-23 03:07:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:07:35,324 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 [2021-11-23 03:07:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:35,326 INFO L225 Difference]: With dead ends: 255 [2021-11-23 03:07:35,326 INFO L226 Difference]: Without dead ends: 255 [2021-11-23 03:07:35,326 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:35,327 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 262 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:35,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 327 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:07:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-23 03:07:35,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 170. [2021-11-23 03:07:35,331 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) [2021-11-23 03:07:35,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2021-11-23 03:07:35,332 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 25 [2021-11-23 03:07:35,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:35,333 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2021-11-23 03:07:35,333 INFO L471 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) [2021-11-23 03:07:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2021-11-23 03:07:35,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:07:35,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:35,334 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:35,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 03:07:35,334 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:35,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:35,335 INFO L85 PathProgramCache]: Analyzing trace with hash -502293249, now seen corresponding path program 1 times [2021-11-23 03:07:35,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:35,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969293906] [2021-11-23 03:07:35,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:35,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:35,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:35,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969293906] [2021-11-23 03:07:35,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969293906] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:07:35,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586580193] [2021-11-23 03:07:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:35,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:07:35,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:07:35,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:07:35,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:07:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:35,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 03:07:35,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:07:35,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:07:35,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:07:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:35,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,767 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:07:35,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 03:07:35,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:35,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 32 [2021-11-23 03:07:36,282 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 03:07:36,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 50 [2021-11-23 03:07:36,315 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 03:07:36,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 25 [2021-11-23 03:07:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:36,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:07:42,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 46 [2021-11-23 03:07:42,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 44 [2021-11-23 03:07:42,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2021-11-23 03:07:42,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 63 [2021-11-23 03:07:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:42,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586580193] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:07:42,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256880344] [2021-11-23 03:07:42,175 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 03:07:42,175 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:07:42,179 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:07:42,184 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:07:42,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:07:42,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:07:42,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:07:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:07:42,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:07:42,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:42,837 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:07:44,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [256880344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:44,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:07:44,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 7, 7] total 27 [2021-11-23 03:07:44,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886281494] [2021-11-23 03:07:44,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:44,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 03:07:44,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:44,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 03:07:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=476, Unknown=6, NotChecked=0, Total=702 [2021-11-23 03:07:44,914 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) [2021-11-23 03:07:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:45,800 INFO L93 Difference]: Finished difference Result 227 states and 261 transitions. [2021-11-23 03:07:45,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:07:45,803 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 [2021-11-23 03:07:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:45,805 INFO L225 Difference]: With dead ends: 227 [2021-11-23 03:07:45,805 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 03:07:45,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=240, Invalid=510, Unknown=6, NotChecked=0, Total=756 [2021-11-23 03:07:45,806 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:45,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 373 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:07:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 03:07:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2021-11-23 03:07:45,811 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) [2021-11-23 03:07:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 226 transitions. [2021-11-23 03:07:45,812 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 226 transitions. Word has length 27 [2021-11-23 03:07:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:45,812 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 226 transitions. [2021-11-23 03:07:45,813 INFO L471 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) [2021-11-23 03:07:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 226 transitions. [2021-11-23 03:07:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 03:07:45,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:45,814 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:45,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:07:46,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-23 03:07:46,042 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:46,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:46,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641916, now seen corresponding path program 1 times [2021-11-23 03:07:46,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:46,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871959709] [2021-11-23 03:07:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:46,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:46,224 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:46,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871959709] [2021-11-23 03:07:46,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871959709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:46,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:46,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:07:46,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022811883] [2021-11-23 03:07:46,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:46,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:07:46,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:07:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:07:46,225 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) [2021-11-23 03:07:46,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:46,734 INFO L93 Difference]: Finished difference Result 326 states and 367 transitions. [2021-11-23 03:07:46,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:07:46,735 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 [2021-11-23 03:07:46,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:46,736 INFO L225 Difference]: With dead ends: 326 [2021-11-23 03:07:46,736 INFO L226 Difference]: Without dead ends: 326 [2021-11-23 03:07:46,737 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:46,737 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 500 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:46,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [500 Valid, 539 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:07:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-23 03:07:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 201. [2021-11-23 03:07:46,743 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) [2021-11-23 03:07:46,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2021-11-23 03:07:46,744 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 28 [2021-11-23 03:07:46,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:46,745 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2021-11-23 03:07:46,745 INFO L471 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) [2021-11-23 03:07:46,745 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2021-11-23 03:07:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 03:07:46,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:46,746 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:46,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 03:07:46,746 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:46,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:46,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1909641915, now seen corresponding path program 1 times [2021-11-23 03:07:46,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:46,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79066664] [2021-11-23 03:07:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:46,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:46,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:46,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79066664] [2021-11-23 03:07:46,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79066664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:46,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:46,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:07:46,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161528799] [2021-11-23 03:07:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:46,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:07:46,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:46,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:07:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:07:46,909 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) [2021-11-23 03:07:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:47,601 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2021-11-23 03:07:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:07:47,602 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 [2021-11-23 03:07:47,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:47,604 INFO L225 Difference]: With dead ends: 379 [2021-11-23 03:07:47,604 INFO L226 Difference]: Without dead ends: 379 [2021-11-23 03:07:47,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:07:47,605 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 402 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:47,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 621 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:07:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-11-23 03:07:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 207. [2021-11-23 03:07:47,611 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) [2021-11-23 03:07:47,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 243 transitions. [2021-11-23 03:07:47,612 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 243 transitions. Word has length 28 [2021-11-23 03:07:47,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:47,612 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 243 transitions. [2021-11-23 03:07:47,613 INFO L471 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) [2021-11-23 03:07:47,613 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 243 transitions. [2021-11-23 03:07:47,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:07:47,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:47,614 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:47,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 03:07:47,614 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:47,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1296793307, now seen corresponding path program 1 times [2021-11-23 03:07:47,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:47,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161638022] [2021-11-23 03:07:47,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:47,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:47,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:47,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161638022] [2021-11-23 03:07:47,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161638022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:07:47,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292391388] [2021-11-23 03:07:47,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:47,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:07:47,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:07:47,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:07:47,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:07:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:47,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 03:07:47,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:07:47,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:07:47,895 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 03:07:47,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 03:07:47,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-23 03:07:48,000 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 03:07:48,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 28 [2021-11-23 03:07:48,119 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-23 03:07:48,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 59 treesize of output 40 [2021-11-23 03:07:52,854 INFO L354 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2021-11-23 03:07:52,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 26 [2021-11-23 03:07:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:52,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:07:52,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292391388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:52,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:07:52,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 20 [2021-11-23 03:07:52,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323616057] [2021-11-23 03:07:52,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:52,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:07:52,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:52,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:07:52,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=328, Unknown=2, NotChecked=0, Total=380 [2021-11-23 03:07:52,939 INFO L87 Difference]: Start difference. First operand 207 states and 243 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) [2021-11-23 03:07:55,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:55,322 INFO L93 Difference]: Finished difference Result 325 states and 374 transitions. [2021-11-23 03:07:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:07:55,323 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 [2021-11-23 03:07:55,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:55,325 INFO L225 Difference]: With dead ends: 325 [2021-11-23 03:07:55,325 INFO L226 Difference]: Without dead ends: 322 [2021-11-23 03:07:55,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=70, Invalid=479, Unknown=3, NotChecked=0, Total=552 [2021-11-23 03:07:55,326 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 131 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:55,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 679 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 392 Invalid, 0 Unknown, 158 Unchecked, 0.3s Time] [2021-11-23 03:07:55,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-11-23 03:07:55,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 207. [2021-11-23 03:07:55,331 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) [2021-11-23 03:07:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 242 transitions. [2021-11-23 03:07:55,332 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 242 transitions. Word has length 30 [2021-11-23 03:07:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:55,333 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 242 transitions. [2021-11-23 03:07:55,333 INFO L471 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) [2021-11-23 03:07:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 242 transitions. [2021-11-23 03:07:55,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:07:55,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:55,334 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:55,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:07:55,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-23 03:07:55,555 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:55,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1214837820, now seen corresponding path program 1 times [2021-11-23 03:07:55,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:55,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058300823] [2021-11-23 03:07:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:55,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:55,824 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:55,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058300823] [2021-11-23 03:07:55,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058300823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:55,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:55,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 03:07:55,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949727985] [2021-11-23 03:07:55,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:55,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:07:55,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:55,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:07:55,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:07:55,827 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) [2021-11-23 03:07:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:56,773 INFO L93 Difference]: Finished difference Result 393 states and 425 transitions. [2021-11-23 03:07:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 03:07:56,774 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 [2021-11-23 03:07:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:56,776 INFO L225 Difference]: With dead ends: 393 [2021-11-23 03:07:56,776 INFO L226 Difference]: Without dead ends: 393 [2021-11-23 03:07:56,776 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:56,777 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 617 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:56,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 904 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 03:07:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-23 03:07:56,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 207. [2021-11-23 03:07:56,785 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) [2021-11-23 03:07:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 241 transitions. [2021-11-23 03:07:56,786 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 241 transitions. Word has length 30 [2021-11-23 03:07:56,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:56,786 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 241 transitions. [2021-11-23 03:07:56,787 INFO L471 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) [2021-11-23 03:07:56,787 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 241 transitions. [2021-11-23 03:07:56,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:07:56,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:56,788 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:56,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 03:07:56,788 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141919, now seen corresponding path program 1 times [2021-11-23 03:07:56,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:56,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371706153] [2021-11-23 03:07:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:56,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:56,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:56,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371706153] [2021-11-23 03:07:56,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371706153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:56,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:56,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:56,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220657314] [2021-11-23 03:07:56,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:56,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:56,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:56,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:56,828 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) [2021-11-23 03:07:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:56,968 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2021-11-23 03:07:56,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:56,968 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 [2021-11-23 03:07:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:56,971 INFO L225 Difference]: With dead ends: 206 [2021-11-23 03:07:56,971 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 03:07:56,971 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:56,972 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 3 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:56,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 308 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:56,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 03:07:56,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-11-23 03:07:56,978 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) [2021-11-23 03:07:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2021-11-23 03:07:56,979 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 30 [2021-11-23 03:07:56,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:56,979 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2021-11-23 03:07:56,979 INFO L471 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) [2021-11-23 03:07:56,979 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2021-11-23 03:07:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 03:07:56,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:56,980 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:56,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 03:07:56,981 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:56,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:56,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1840141920, now seen corresponding path program 1 times [2021-11-23 03:07:56,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:56,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622900122] [2021-11-23 03:07:56,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:56,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:57,044 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:57,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622900122] [2021-11-23 03:07:57,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622900122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:57,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:57,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:57,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601123531] [2021-11-23 03:07:57,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:57,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:57,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:57,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:57,046 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) [2021-11-23 03:07:57,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:57,193 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2021-11-23 03:07:57,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:57,193 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 [2021-11-23 03:07:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:57,194 INFO L225 Difference]: With dead ends: 205 [2021-11-23 03:07:57,194 INFO L226 Difference]: Without dead ends: 205 [2021-11-23 03:07:57,195 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:57,195 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:57,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 302 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:57,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-23 03:07:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-23 03:07:57,200 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) [2021-11-23 03:07:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 239 transitions. [2021-11-23 03:07:57,201 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 239 transitions. Word has length 30 [2021-11-23 03:07:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:57,201 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 239 transitions. [2021-11-23 03:07:57,201 INFO L471 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) [2021-11-23 03:07:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 239 transitions. [2021-11-23 03:07:57,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:07:57,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:57,202 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:57,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 03:07:57,203 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash 90761328, now seen corresponding path program 1 times [2021-11-23 03:07:57,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:57,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539085473] [2021-11-23 03:07:57,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:57,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:07:57,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:57,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539085473] [2021-11-23 03:07:57,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539085473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:57,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:57,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:07:57,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801871393] [2021-11-23 03:07:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:57,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:07:57,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:07:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:07:57,309 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) [2021-11-23 03:07:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:57,657 INFO L93 Difference]: Finished difference Result 269 states and 313 transitions. [2021-11-23 03:07:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:07:57,657 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 [2021-11-23 03:07:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:57,659 INFO L225 Difference]: With dead ends: 269 [2021-11-23 03:07:57,659 INFO L226 Difference]: Without dead ends: 269 [2021-11-23 03:07:57,659 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:57,660 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 199 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:57,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 555 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:07:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-23 03:07:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 193. [2021-11-23 03:07:57,664 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) [2021-11-23 03:07:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 225 transitions. [2021-11-23 03:07:57,665 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 225 transitions. Word has length 31 [2021-11-23 03:07:57,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:57,666 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 225 transitions. [2021-11-23 03:07:57,666 INFO L471 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) [2021-11-23 03:07:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 225 transitions. [2021-11-23 03:07:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:07:57,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:57,666 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:57,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 03:07:57,666 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:57,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:57,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2044341774, now seen corresponding path program 1 times [2021-11-23 03:07:57,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:57,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39611807] [2021-11-23 03:07:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:57,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:07:57,720 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:57,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39611807] [2021-11-23 03:07:57,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39611807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:57,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:57,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:07:57,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457232271] [2021-11-23 03:07:57,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:57,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:07:57,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:07:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:07:57,723 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) [2021-11-23 03:07:57,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:57,867 INFO L93 Difference]: Finished difference Result 203 states and 234 transitions. [2021-11-23 03:07:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:07:57,868 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 [2021-11-23 03:07:57,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:57,878 INFO L225 Difference]: With dead ends: 203 [2021-11-23 03:07:57,878 INFO L226 Difference]: Without dead ends: 203 [2021-11-23 03:07:57,879 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:57,879 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 41 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:57,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 232 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-23 03:07:57,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 193. [2021-11-23 03:07:57,885 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) [2021-11-23 03:07:57,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2021-11-23 03:07:57,886 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 31 [2021-11-23 03:07:57,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:57,887 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2021-11-23 03:07:57,887 INFO L471 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) [2021-11-23 03:07:57,887 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2021-11-23 03:07:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 03:07:57,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:57,888 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:57,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-23 03:07:57,888 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:57,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:57,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1566178367, now seen corresponding path program 1 times [2021-11-23 03:07:57,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:57,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924810019] [2021-11-23 03:07:57,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:57,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:57,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:57,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924810019] [2021-11-23 03:07:57,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924810019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:57,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:57,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:07:57,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156664503] [2021-11-23 03:07:57,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:57,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:07:57,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:57,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:07:57,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:07:57,940 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) [2021-11-23 03:07:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:58,051 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2021-11-23 03:07:58,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:07:58,052 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 [2021-11-23 03:07:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:58,053 INFO L225 Difference]: With dead ends: 206 [2021-11-23 03:07:58,053 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 03:07:58,054 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:58,054 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 11 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:58,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 272 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:07:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 03:07:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2021-11-23 03:07:58,059 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) [2021-11-23 03:07:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 226 transitions. [2021-11-23 03:07:58,060 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 226 transitions. Word has length 32 [2021-11-23 03:07:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:58,060 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 226 transitions. [2021-11-23 03:07:58,060 INFO L471 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) [2021-11-23 03:07:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 226 transitions. [2021-11-23 03:07:58,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 03:07:58,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:58,061 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:58,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-23 03:07:58,062 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:58,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:58,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853815, now seen corresponding path program 1 times [2021-11-23 03:07:58,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:58,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926673557] [2021-11-23 03:07:58,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:58,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:58,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:58,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926673557] [2021-11-23 03:07:58,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926673557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:58,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:58,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 03:07:58,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898629921] [2021-11-23 03:07:58,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:58,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 03:07:58,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:58,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 03:07:58,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:07:58,228 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) [2021-11-23 03:07:58,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:58,657 INFO L93 Difference]: Finished difference Result 195 states and 226 transitions. [2021-11-23 03:07:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:07:58,661 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 [2021-11-23 03:07:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:58,662 INFO L225 Difference]: With dead ends: 195 [2021-11-23 03:07:58,663 INFO L226 Difference]: Without dead ends: 195 [2021-11-23 03:07:58,663 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:58,664 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 155 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:58,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 496 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:07:58,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-23 03:07:58,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2021-11-23 03:07:58,668 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) [2021-11-23 03:07:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 225 transitions. [2021-11-23 03:07:58,669 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 225 transitions. Word has length 32 [2021-11-23 03:07:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:58,670 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 225 transitions. [2021-11-23 03:07:58,670 INFO L471 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) [2021-11-23 03:07:58,670 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 225 transitions. [2021-11-23 03:07:58,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 03:07:58,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:58,671 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:58,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-23 03:07:58,671 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:58,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:58,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1149853814, now seen corresponding path program 1 times [2021-11-23 03:07:58,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:58,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905186800] [2021-11-23 03:07:58,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:58,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:58,847 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905186800] [2021-11-23 03:07:58,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905186800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:58,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:58,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 03:07:58,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602168119] [2021-11-23 03:07:58,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:58,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 03:07:58,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:58,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 03:07:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-23 03:07:58,849 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) [2021-11-23 03:07:59,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:07:59,386 INFO L93 Difference]: Finished difference Result 194 states and 225 transitions. [2021-11-23 03:07:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:07:59,387 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 [2021-11-23 03:07:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:07:59,388 INFO L225 Difference]: With dead ends: 194 [2021-11-23 03:07:59,388 INFO L226 Difference]: Without dead ends: 194 [2021-11-23 03:07:59,388 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:07:59,389 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 151 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:07:59,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 535 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:07:59,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-23 03:07:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 193. [2021-11-23 03:07:59,393 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) [2021-11-23 03:07:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 224 transitions. [2021-11-23 03:07:59,394 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 224 transitions. Word has length 32 [2021-11-23 03:07:59,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:07:59,394 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 224 transitions. [2021-11-23 03:07:59,394 INFO L471 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) [2021-11-23 03:07:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 224 transitions. [2021-11-23 03:07:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 03:07:59,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:07:59,395 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:07:59,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-23 03:07:59,395 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:07:59,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:07:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1834861821, now seen corresponding path program 1 times [2021-11-23 03:07:59,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:07:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966067682] [2021-11-23 03:07:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:07:59,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:07:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:07:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:07:59,628 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:07:59,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966067682] [2021-11-23 03:07:59,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966067682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:07:59,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:07:59,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 03:07:59,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755401912] [2021-11-23 03:07:59,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:07:59,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:07:59,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:07:59,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:07:59,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:07:59,630 INFO L87 Difference]: Start difference. First operand 193 states and 224 transitions. Second operand has 12 states, 12 states have (on average 2.75) 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) [2021-11-23 03:08:00,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:00,287 INFO L93 Difference]: Finished difference Result 279 states and 314 transitions. [2021-11-23 03:08:00,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 03:08:00,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) 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 [2021-11-23 03:08:00,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:00,289 INFO L225 Difference]: With dead ends: 279 [2021-11-23 03:08:00,289 INFO L226 Difference]: Without dead ends: 279 [2021-11-23 03:08:00,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2021-11-23 03:08:00,290 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 492 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:08:00,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 747 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:08:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-23 03:08:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 193. [2021-11-23 03:08:00,295 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) [2021-11-23 03:08:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions. [2021-11-23 03:08:00,295 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 33 [2021-11-23 03:08:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:00,296 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions. [2021-11-23 03:08:00,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) 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) [2021-11-23 03:08:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions. [2021-11-23 03:08:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 03:08:00,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:00,296 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:00,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-23 03:08:00,297 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:00,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1306585279, now seen corresponding path program 1 times [2021-11-23 03:08:00,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:00,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575008567] [2021-11-23 03:08:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:00,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:00,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:00,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575008567] [2021-11-23 03:08:00,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575008567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:08:00,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:08:00,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:08:00,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872573691] [2021-11-23 03:08:00,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:08:00,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:08:00,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:08:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:08:00,350 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) [2021-11-23 03:08:00,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:00,469 INFO L93 Difference]: Finished difference Result 199 states and 230 transitions. [2021-11-23 03:08:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:08:00,470 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 [2021-11-23 03:08:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:00,471 INFO L225 Difference]: With dead ends: 199 [2021-11-23 03:08:00,471 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 03:08:00,472 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:08:00,472 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 15 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:08:00,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 257 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:08:00,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 03:08:00,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 191. [2021-11-23 03:08:00,476 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) [2021-11-23 03:08:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 221 transitions. [2021-11-23 03:08:00,477 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 221 transitions. Word has length 33 [2021-11-23 03:08:00,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:00,478 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 221 transitions. [2021-11-23 03:08:00,478 INFO L471 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) [2021-11-23 03:08:00,478 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 221 transitions. [2021-11-23 03:08:00,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 03:08:00,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:00,479 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:00,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-23 03:08:00,479 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:00,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1884404572, now seen corresponding path program 1 times [2021-11-23 03:08:00,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:00,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798220394] [2021-11-23 03:08:00,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:00,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:00,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798220394] [2021-11-23 03:08:00,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798220394] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:08:00,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546050488] [2021-11-23 03:08:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:00,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:08:00,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:08:00,594 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:08:00,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:08:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:00,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 03:08:00,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:08:00,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:00,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:00,691 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 03:08:00,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 03:08:00,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:00,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:00,777 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-23 03:08:00,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 03:08:00,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:00,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 32 [2021-11-23 03:08:01,187 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 03:08:01,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 45 [2021-11-23 03:08:01,193 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 03:08:01,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 16 [2021-11-23 03:08:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:08:01,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:08:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:08:01,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546050488] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:08:01,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1708691183] [2021-11-23 03:08:01,416 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-23 03:08:01,420 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:08:01,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:08:01,421 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:08:01,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:08:01,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:01,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:01,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:01,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:01,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 49 [2021-11-23 03:08:01,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 31 [2021-11-23 03:08:01,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 31 [2021-11-23 03:08:02,089 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:08:04,112 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15153#(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 [2021-11-23 03:08:04,112 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:08:04,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:08:04,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 5] total 9 [2021-11-23 03:08:04,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181828678] [2021-11-23 03:08:04,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:08:04,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:08:04,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:08:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2021-11-23 03:08:04,115 INFO L87 Difference]: Start difference. First operand 191 states and 221 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:08:04,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:04,578 INFO L93 Difference]: Finished difference Result 333 states and 360 transitions. [2021-11-23 03:08:04,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:08:04,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 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 [2021-11-23 03:08:04,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:04,580 INFO L225 Difference]: With dead ends: 333 [2021-11-23 03:08:04,580 INFO L226 Difference]: Without dead ends: 333 [2021-11-23 03:08:04,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 78 SyntacticMatches, 7 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2021-11-23 03:08:04,581 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 243 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:08:04,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 541 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:08:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-23 03:08:04,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 226. [2021-11-23 03:08:04,587 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) [2021-11-23 03:08:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 275 transitions. [2021-11-23 03:08:04,588 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 275 transitions. Word has length 35 [2021-11-23 03:08:04,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:04,589 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 275 transitions. [2021-11-23 03:08:04,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:08:04,589 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 275 transitions. [2021-11-23 03:08:04,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 03:08:04,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:04,590 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:04,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:08:04,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:08:04,804 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1884408352, now seen corresponding path program 1 times [2021-11-23 03:08:04,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:04,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579544631] [2021-11-23 03:08:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:04,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:08:04,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:04,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579544631] [2021-11-23 03:08:04,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579544631] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:08:04,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348358218] [2021-11-23 03:08:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:04,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:08:04,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:08:04,863 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:08:04,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:08:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:04,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 03:08:04,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:08:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:08:05,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:08:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:08:05,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348358218] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:08:05,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1176935015] [2021-11-23 03:08:05,204 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-11-23 03:08:05,204 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:08:05,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:08:05,205 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:08:05,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:08:05,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:05,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:05,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:05,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:05,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:05,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 49 [2021-11-23 03:08:05,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 31 [2021-11-23 03:08:05,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 34 treesize of output 31 [2021-11-23 03:08:05,927 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:08:07,999 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15958#(and (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) (= |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) (= |#NULL.base| 0))' at error location [2021-11-23 03:08:07,999 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:08:07,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:08:08,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2021-11-23 03:08:08,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059696120] [2021-11-23 03:08:08,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:08:08,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:08:08,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:08:08,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2021-11-23 03:08:08,001 INFO L87 Difference]: Start difference. First operand 226 states and 275 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:08:08,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:08,107 INFO L93 Difference]: Finished difference Result 229 states and 277 transitions. [2021-11-23 03:08:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:08:08,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 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 [2021-11-23 03:08:08,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:08,109 INFO L225 Difference]: With dead ends: 229 [2021-11-23 03:08:08,109 INFO L226 Difference]: Without dead ends: 210 [2021-11-23 03:08:08,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2021-11-23 03:08:08,110 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:08:08,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 1 Unchecked, 0.1s Time] [2021-11-23 03:08:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-23 03:08:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-23 03:08:08,115 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) [2021-11-23 03:08:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 258 transitions. [2021-11-23 03:08:08,116 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 258 transitions. Word has length 35 [2021-11-23 03:08:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:08,116 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 258 transitions. [2021-11-23 03:08:08,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:08:08,117 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 258 transitions. [2021-11-23 03:08:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 03:08:08,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:08,117 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:08,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:08:08,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-23 03:08:08,342 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1186708526, now seen corresponding path program 1 times [2021-11-23 03:08:08,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:08,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284689125] [2021-11-23 03:08:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:08,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:08,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:08,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284689125] [2021-11-23 03:08:08,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284689125] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:08:08,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716984471] [2021-11-23 03:08:08,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:08,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:08:08,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:08:08,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:08:08,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:08:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:08,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:08:08,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:08:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:08,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:08:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:08,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716984471] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:08:08,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268189972] [2021-11-23 03:08:08,573 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-11-23 03:08:08,573 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:08:08,574 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:08:08,574 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:08:08,574 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:08:08,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:08,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 59 treesize of output 61 [2021-11-23 03:08:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:08,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,843 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:08:08,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 248 treesize of output 178 [2021-11-23 03:08:08,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,890 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:08:08,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 238 treesize of output 210 [2021-11-23 03:08:08,925 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-23 03:08:08,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 228 treesize of output 189 [2021-11-23 03:08:08,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:08,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:09,030 INFO L354 Elim1Store]: treesize reduction 240, result has 14.0 percent of original size [2021-11-23 03:08:09,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 294 treesize of output 215 [2021-11-23 03:08:09,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:09,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:09,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:09,072 INFO L354 Elim1Store]: treesize reduction 200, result has 16.3 percent of original size [2021-11-23 03:08:09,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 284 treesize of output 250 [2021-11-23 03:08:09,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 184 [2021-11-23 03:08:09,638 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:08:12,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1268189972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:08:12,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:08:12,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [4, 4, 4] total 25 [2021-11-23 03:08:12,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524920562] [2021-11-23 03:08:12,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:08:12,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 03:08:12,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:12,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 03:08:12,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2021-11-23 03:08:12,859 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) [2021-11-23 03:08:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:14,277 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2021-11-23 03:08:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-23 03:08:14,277 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 [2021-11-23 03:08:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:14,278 INFO L225 Difference]: With dead ends: 235 [2021-11-23 03:08:14,278 INFO L226 Difference]: Without dead ends: 235 [2021-11-23 03:08:14,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 83 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2021-11-23 03:08:14,279 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 219 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:08:14,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 400 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:08:14,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-23 03:08:14,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 216. [2021-11-23 03:08:14,283 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) [2021-11-23 03:08:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 263 transitions. [2021-11-23 03:08:14,284 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 263 transitions. Word has length 37 [2021-11-23 03:08:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:14,284 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 263 transitions. [2021-11-23 03:08:14,285 INFO L471 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) [2021-11-23 03:08:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 263 transitions. [2021-11-23 03:08:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:08:14,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:14,286 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:14,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:08:14,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-23 03:08:14,499 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2004688172, now seen corresponding path program 1 times [2021-11-23 03:08:14,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:14,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663168811] [2021-11-23 03:08:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:14,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:08:14,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:14,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663168811] [2021-11-23 03:08:14,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663168811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:08:14,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:08:14,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:08:14,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829700934] [2021-11-23 03:08:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:08:14,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:08:14,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:14,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:08:14,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:08:14,553 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) [2021-11-23 03:08:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:08:14,622 INFO L93 Difference]: Finished difference Result 222 states and 266 transitions. [2021-11-23 03:08:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:08:14,623 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 [2021-11-23 03:08:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:08:14,625 INFO L225 Difference]: With dead ends: 222 [2021-11-23 03:08:14,625 INFO L226 Difference]: Without dead ends: 222 [2021-11-23 03:08:14,625 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:08:14,626 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 77 mSDsluCounter, 32 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 [2021-11-23 03:08:14,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 108 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:08:14,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-23 03:08:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 214. [2021-11-23 03:08:14,631 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) [2021-11-23 03:08:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-11-23 03:08:14,632 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 44 [2021-11-23 03:08:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:08:14,632 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-11-23 03:08:14,632 INFO L471 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) [2021-11-23 03:08:14,632 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2021-11-23 03:08:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:08:14,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:08:14,633 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:08:14,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-23 03:08:14,634 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:08:14,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:08:14,634 INFO L85 PathProgramCache]: Analyzing trace with hash -810433761, now seen corresponding path program 1 times [2021-11-23 03:08:14,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:08:14,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468859877] [2021-11-23 03:08:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:14,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:08:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:14,995 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:08:14,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468859877] [2021-11-23 03:08:14,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468859877] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:08:14,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874780555] [2021-11-23 03:08:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:08:14,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:08:14,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:08:14,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:08:14,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:08:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:08:15,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 03:08:15,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:08:15,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:15,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:15,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:15,241 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:08:15,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:15,300 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-23 03:08:15,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 03:08:15,318 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 03:08:15,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 35 [2021-11-23 03:08:15,461 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-23 03:08:15,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 91 treesize of output 76 [2021-11-23 03:08:15,481 INFO L354 Elim1Store]: treesize reduction 88, result has 16.2 percent of original size [2021-11-23 03:08:15,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 83 treesize of output 81 [2021-11-23 03:08:15,712 INFO L354 Elim1Store]: treesize reduction 118, result has 21.3 percent of original size [2021-11-23 03:08:15,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 102 [2021-11-23 03:08:15,749 INFO L354 Elim1Store]: treesize reduction 138, result has 20.7 percent of original size [2021-11-23 03:08:15,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 106 treesize of output 117 [2021-11-23 03:08:16,250 INFO L354 Elim1Store]: treesize reduction 118, result has 16.9 percent of original size [2021-11-23 03:08:16,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 93 [2021-11-23 03:08:16,284 INFO L354 Elim1Store]: treesize reduction 146, result has 16.1 percent of original size [2021-11-23 03:08:16,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 106 [2021-11-23 03:08:17,634 INFO L354 Elim1Store]: treesize reduction 63, result has 11.3 percent of original size [2021-11-23 03:08:17,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 79 [2021-11-23 03:08:17,644 INFO L354 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2021-11-23 03:08:17,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 45 [2021-11-23 03:08:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:17,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:08:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:08:41,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874780555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:08:41,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1190616589] [2021-11-23 03:08:41,245 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-23 03:08:41,245 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:08:41,245 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:08:41,246 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:08:41,246 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:08:41,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:41,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:41,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:41,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 64 [2021-11-23 03:08:41,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,630 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:08:41,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 220 treesize of output 176 [2021-11-23 03:08:41,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,678 INFO L354 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2021-11-23 03:08:41,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 212 treesize of output 196 [2021-11-23 03:08:41,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 144 [2021-11-23 03:08:41,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:41,808 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:08:41,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 160 treesize of output 139 [2021-11-23 03:08:41,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,827 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:41,859 INFO L354 Elim1Store]: treesize reduction 108, result has 23.4 percent of original size [2021-11-23 03:08:41,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 119 treesize of output 123 [2021-11-23 03:08:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:41,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:41,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:42,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 95 treesize of output 102 [2021-11-23 03:08:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:08:42,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:42,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,333 INFO L354 Elim1Store]: treesize reduction 234, result has 17.3 percent of original size [2021-11-23 03:08:42,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 272 treesize of output 237 [2021-11-23 03:08:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,432 INFO L354 Elim1Store]: treesize reduction 210, result has 18.9 percent of original size [2021-11-23 03:08:42,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 264 treesize of output 257 [2021-11-23 03:08:42,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 196 [2021-11-23 03:08:42,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,505 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:42,607 INFO L354 Elim1Store]: treesize reduction 422, result has 13.2 percent of original size [2021-11-23 03:08:42,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 408 treesize of output 271 [2021-11-23 03:08:42,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:42,754 INFO L354 Elim1Store]: treesize reduction 408, result has 13.9 percent of original size [2021-11-23 03:08:42,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 25 case distinctions, treesize of input 404 treesize of output 362 [2021-11-23 03:08:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:42,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:43,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,289 INFO L354 Elim1Store]: treesize reduction 412, result has 8.4 percent of original size [2021-11-23 03:08:43,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 38 case distinctions, treesize of input 694 treesize of output 551 [2021-11-23 03:08:43,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:43,453 INFO L354 Elim1Store]: treesize reduction 382, result has 9.5 percent of original size [2021-11-23 03:08:43,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 new quantified variables, introduced 38 case distinctions, treesize of input 701 treesize of output 665 [2021-11-23 03:08:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:43,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 708 treesize of output 687 [2021-11-23 03:08:44,803 INFO L354 Elim1Store]: treesize reduction 326, result has 12.1 percent of original size [2021-11-23 03:08:44,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 case distinctions, treesize of input 2364 treesize of output 2247 [2021-11-23 03:08:45,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,458 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,641 INFO L354 Elim1Store]: treesize reduction 440, result has 9.1 percent of original size [2021-11-23 03:08:45,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 case distinctions, treesize of input 2769 treesize of output 1852 [2021-11-23 03:08:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,686 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:45,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,839 INFO L354 Elim1Store]: treesize reduction 424, result has 6.6 percent of original size [2021-11-23 03:08:45,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 case distinctions, treesize of input 2305 treesize of output 2064 [2021-11-23 03:08:45,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:45,891 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 03:08:45,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2273 treesize of output 2216 [2021-11-23 03:08:46,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,293 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,296 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,585 INFO L354 Elim1Store]: treesize reduction 762, result has 10.7 percent of original size [2021-11-23 03:08:46,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 case distinctions, treesize of input 913 treesize of output 672 [2021-11-23 03:08:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:46,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:46,946 INFO L354 Elim1Store]: treesize reduction 706, result has 11.6 percent of original size [2021-11-23 03:08:46,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 new quantified variables, introduced 52 case distinctions, treesize of input 928 treesize of output 862 [2021-11-23 03:08:47,008 INFO L354 Elim1Store]: treesize reduction 116, result has 11.5 percent of original size [2021-11-23 03:08:47,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 947 treesize of output 906 [2021-11-23 03:08:47,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:47,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:47,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:47,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:47,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:47,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:48,332 INFO L354 Elim1Store]: treesize reduction 822, result has 12.4 percent of original size [2021-11-23 03:08:48,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3932 treesize of output 1802 [2021-11-23 03:08:48,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:48,380 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:48,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:48,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:48,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:08:48,834 INFO L354 Elim1Store]: treesize reduction 808, result has 12.7 percent of original size [2021-11-23 03:08:48,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3280 treesize of output 2386 [2021-11-23 03:08:48,905 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 03:08:48,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3036 treesize of output 2995 [2021-11-23 03:08:50,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,097 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:08:50,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:50,131 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:08:50,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:50,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:50,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:50,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:50,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 41 [2021-11-23 03:08:50,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:50,198 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-23 03:08:50,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 128 [2021-11-23 03:08:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:08:50,222 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-11-23 03:08:50,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 144 [2021-11-23 03:08:50,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 116 [2021-11-23 03:08:50,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,406 INFO L354 Elim1Store]: treesize reduction 144, result has 17.2 percent of original size [2021-11-23 03:08:50,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 152 [2021-11-23 03:08:50,455 INFO L354 Elim1Store]: treesize reduction 106, result has 18.5 percent of original size [2021-11-23 03:08:50,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 127 [2021-11-23 03:08:50,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:50,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:08:50,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-23 03:08:50,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:08:50,676 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:08:50,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 145 treesize of output 103 [2021-11-23 03:08:50,708 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:08:50,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 137 treesize of output 127 [2021-11-23 03:08:50,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2021-11-23 03:08:50,786 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:08:54,150 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17848#(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 [2021-11-23 03:08:54,151 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:08:54,151 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:08:54,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 11] total 35 [2021-11-23 03:08:54,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300880749] [2021-11-23 03:08:54,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:08:54,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-23 03:08:54,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:08:54,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-23 03:08:54,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=3143, Unknown=6, NotChecked=0, Total=3540 [2021-11-23 03:08:54,153 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 35 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 35 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) [2021-11-23 03:09:24,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:09:24,439 INFO L93 Difference]: Finished difference Result 457 states and 527 transitions. [2021-11-23 03:09:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-23 03:09:24,440 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 35 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 44 [2021-11-23 03:09:24,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:09:24,442 INFO L225 Difference]: With dead ends: 457 [2021-11-23 03:09:24,442 INFO L226 Difference]: Without dead ends: 457 [2021-11-23 03:09:24,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 85 SyntacticMatches, 5 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2437 ImplicationChecksByTransitivity, 55.3s TimeCoverageRelationStatistics Valid=731, Invalid=6395, Unknown=14, NotChecked=0, Total=7140 [2021-11-23 03:09:24,445 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 624 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 623 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:09:24,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 1405 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 655 Invalid, 0 Unknown, 623 Unchecked, 0.6s Time] [2021-11-23 03:09:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-23 03:09:24,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 267. [2021-11-23 03:09:24,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 242 states have (on average 1.3099173553719008) internal successors, (317), 266 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 317 transitions. [2021-11-23 03:09:24,453 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 317 transitions. Word has length 44 [2021-11-23 03:09:24,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:09:24,453 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 317 transitions. [2021-11-23 03:09:24,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4571428571428573) internal successors, (121), 35 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) [2021-11-23 03:09:24,454 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 317 transitions. [2021-11-23 03:09:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:09:24,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:09:24,455 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:09:24,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:09:24,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-23 03:09:24,667 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:09:24,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:09:24,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795631, now seen corresponding path program 1 times [2021-11-23 03:09:24,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:09:24,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799478776] [2021-11-23 03:09:24,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:24,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:09:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:09:24,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:09:24,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799478776] [2021-11-23 03:09:24,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799478776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:09:24,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:09:24,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:09:24,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366430825] [2021-11-23 03:09:24,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:09:24,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:09:24,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:09:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:09:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:09:24,822 INFO L87 Difference]: Start difference. First operand 267 states and 317 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) [2021-11-23 03:09:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:09:25,367 INFO L93 Difference]: Finished difference Result 278 states and 323 transitions. [2021-11-23 03:09:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:09:25,368 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 [2021-11-23 03:09:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:09:25,370 INFO L225 Difference]: With dead ends: 278 [2021-11-23 03:09:25,370 INFO L226 Difference]: Without dead ends: 278 [2021-11-23 03:09:25,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:09:25,371 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 288 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:09:25,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 295 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:09:25,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-23 03:09:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 267. [2021-11-23 03:09:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 242 states have (on average 1.3057851239669422) internal successors, (316), 266 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 316 transitions. [2021-11-23 03:09:25,378 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 316 transitions. Word has length 45 [2021-11-23 03:09:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:09:25,378 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 316 transitions. [2021-11-23 03:09:25,379 INFO L471 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) [2021-11-23 03:09:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 316 transitions. [2021-11-23 03:09:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:09:25,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:09:25,380 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:09:25,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-23 03:09:25,380 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:09:25,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:09:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2015795632, now seen corresponding path program 1 times [2021-11-23 03:09:25,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:09:25,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489380654] [2021-11-23 03:09:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:25,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:09:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:09:25,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:09:25,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489380654] [2021-11-23 03:09:25,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489380654] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:09:25,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:09:25,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:09:25,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587977631] [2021-11-23 03:09:25,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:09:25,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:09:25,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:09:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:09:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:09:25,569 INFO L87 Difference]: Start difference. First operand 267 states and 316 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) [2021-11-23 03:09:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:09:25,959 INFO L93 Difference]: Finished difference Result 279 states and 324 transitions. [2021-11-23 03:09:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 03:09:25,959 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 [2021-11-23 03:09:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:09:25,961 INFO L225 Difference]: With dead ends: 279 [2021-11-23 03:09:25,961 INFO L226 Difference]: Without dead ends: 279 [2021-11-23 03:09:25,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-23 03:09:25,961 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 229 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:09:25,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 262 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:09:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-23 03:09:25,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 267. [2021-11-23 03:09:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 242 states have (on average 1.2975206611570247) internal successors, (314), 266 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 314 transitions. [2021-11-23 03:09:25,967 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 314 transitions. Word has length 45 [2021-11-23 03:09:25,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:09:25,968 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 314 transitions. [2021-11-23 03:09:25,968 INFO L471 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) [2021-11-23 03:09:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 314 transitions. [2021-11-23 03:09:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 03:09:25,969 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:09:25,969 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:09:25,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-23 03:09:25,969 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:09:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:09:25,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711168, now seen corresponding path program 1 times [2021-11-23 03:09:25,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:09:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208781821] [2021-11-23 03:09:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:25,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:09:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:09:26,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:09:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208781821] [2021-11-23 03:09:26,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208781821] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:09:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870141497] [2021-11-23 03:09:26,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:26,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:09:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:09:26,264 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:09:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:09:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:26,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-23 03:09:26,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:09:26,475 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 03:09:26,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2021-11-23 03:09:26,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:26,725 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-23 03:09:26,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 64 treesize of output 66 [2021-11-23 03:09:26,737 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 03:09:26,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 59 [2021-11-23 03:09:28,106 INFO L354 Elim1Store]: treesize reduction 133, result has 17.4 percent of original size [2021-11-23 03:09:28,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 124 treesize of output 110 [2021-11-23 03:09:28,150 INFO L354 Elim1Store]: treesize reduction 84, result has 22.9 percent of original size [2021-11-23 03:09:28,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 101 [2021-11-23 03:09:28,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:09:28,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:09:30,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 100 treesize of output 96 [2021-11-23 03:09:31,586 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-23 03:09:31,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 153 treesize of output 120 [2021-11-23 03:09:31,915 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-23 03:09:31,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 18 [2021-11-23 03:09:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:09:32,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870141497] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:09:32,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1499678117] [2021-11-23 03:09:32,090 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-23 03:09:32,090 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:09:32,090 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:09:32,091 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:09:32,091 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:09:32,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:32,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:32,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:32,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 64 [2021-11-23 03:09:32,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,472 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:09:32,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 220 treesize of output 176 [2021-11-23 03:09:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,524 INFO L354 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2021-11-23 03:09:32,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 212 treesize of output 196 [2021-11-23 03:09:32,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 144 [2021-11-23 03:09:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:32,657 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:09:32,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 160 treesize of output 139 [2021-11-23 03:09:32,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:32,723 INFO L354 Elim1Store]: treesize reduction 108, result has 23.4 percent of original size [2021-11-23 03:09:32,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 119 treesize of output 123 [2021-11-23 03:09:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:32,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:32,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:32,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:33,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 95 treesize of output 102 [2021-11-23 03:09:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:09:33,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,220 INFO L354 Elim1Store]: treesize reduction 234, result has 17.3 percent of original size [2021-11-23 03:09:33,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 272 treesize of output 237 [2021-11-23 03:09:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,342 INFO L354 Elim1Store]: treesize reduction 210, result has 18.9 percent of original size [2021-11-23 03:09:33,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 264 treesize of output 257 [2021-11-23 03:09:33,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 196 [2021-11-23 03:09:33,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:33,520 INFO L354 Elim1Store]: treesize reduction 422, result has 13.2 percent of original size [2021-11-23 03:09:33,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 408 treesize of output 271 [2021-11-23 03:09:33,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:33,684 INFO L354 Elim1Store]: treesize reduction 408, result has 13.9 percent of original size [2021-11-23 03:09:33,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 404 treesize of output 362 [2021-11-23 03:09:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:33,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,014 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,148 INFO L354 Elim1Store]: treesize reduction 110, result has 16.0 percent of original size [2021-11-23 03:09:34,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 623 treesize of output 516 [2021-11-23 03:09:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,169 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:34,265 INFO L354 Elim1Store]: treesize reduction 166, result has 14.9 percent of original size [2021-11-23 03:09:34,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 37 case distinctions, treesize of input 630 treesize of output 641 [2021-11-23 03:09:34,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:34,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 637 treesize of output 616 [2021-11-23 03:09:35,433 INFO L354 Elim1Store]: treesize reduction 292, result has 12.8 percent of original size [2021-11-23 03:09:35,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 20 case distinctions, treesize of input 2104 treesize of output 2025 [2021-11-23 03:09:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,943 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:35,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:35,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:35,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:35,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:35,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,013 INFO L354 Elim1Store]: treesize reduction 192, result has 9.0 percent of original size [2021-11-23 03:09:36,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 44 case distinctions, treesize of input 2454 treesize of output 2253 [2021-11-23 03:09:36,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,040 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,143 INFO L354 Elim1Store]: treesize reduction 116, result has 18.9 percent of original size [2021-11-23 03:09:36,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 44 case distinctions, treesize of input 2422 treesize of output 1715 [2021-11-23 03:09:36,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,190 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 03:09:36,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2130 treesize of output 2073 [2021-11-23 03:09:36,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,840 INFO L354 Elim1Store]: treesize reduction 470, result has 14.7 percent of original size [2021-11-23 03:09:36,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 case distinctions, treesize of input 819 treesize of output 630 [2021-11-23 03:09:36,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,868 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:36,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:36,871 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,099 INFO L354 Elim1Store]: treesize reduction 530, result has 17.6 percent of original size [2021-11-23 03:09:37,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 new quantified variables, introduced 52 case distinctions, treesize of input 830 treesize of output 835 [2021-11-23 03:09:37,158 INFO L354 Elim1Store]: treesize reduction 116, result has 11.5 percent of original size [2021-11-23 03:09:37,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 841 treesize of output 800 [2021-11-23 03:09:37,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,849 INFO L354 Elim1Store]: treesize reduction 548, result has 16.2 percent of original size [2021-11-23 03:09:37,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1208 treesize of output 736 [2021-11-23 03:09:37,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,871 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:37,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:37,876 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:09:38,256 INFO L354 Elim1Store]: treesize reduction 852, result has 15.3 percent of original size [2021-11-23 03:09:38,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 new quantified variables, introduced 66 case distinctions, treesize of input 1146 treesize of output 1065 [2021-11-23 03:09:38,311 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 03:09:38,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1106 treesize of output 1089 [2021-11-23 03:09:38,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:38,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:38,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:38,678 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:09:38,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:38,704 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:09:38,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:38,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:38,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:38,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:38,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 41 [2021-11-23 03:09:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:38,785 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-23 03:09:38,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 128 [2021-11-23 03:09:38,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:09:38,809 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-11-23 03:09:38,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 144 [2021-11-23 03:09:38,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 116 [2021-11-23 03:09:38,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:38,941 INFO L354 Elim1Store]: treesize reduction 144, result has 17.2 percent of original size [2021-11-23 03:09:38,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 152 [2021-11-23 03:09:38,973 INFO L354 Elim1Store]: treesize reduction 106, result has 18.5 percent of original size [2021-11-23 03:09:38,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 135 treesize of output 127 [2021-11-23 03:09:39,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:39,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:39,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:39,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:39,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:39,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:39,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-23 03:09:39,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:39,300 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:09:39,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 145 treesize of output 103 [2021-11-23 03:09:39,327 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:09:39,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 137 treesize of output 127 [2021-11-23 03:09:39,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2021-11-23 03:09:39,389 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:09:42,318 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20080#(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 [2021-11-23 03:09:42,319 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:09:42,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:09:42,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2021-11-23 03:09:42,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595633801] [2021-11-23 03:09:42,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:09:42,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-23 03:09:42,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:09:42,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-23 03:09:42,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=2233, Unknown=2, NotChecked=0, Total=2550 [2021-11-23 03:09:42,321 INFO L87 Difference]: Start difference. First operand 267 states and 314 transitions. Second operand has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 23 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:09:43,705 INFO L93 Difference]: Finished difference Result 353 states and 409 transitions. [2021-11-23 03:09:43,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 03:09:43,705 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 23 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-23 03:09:43,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:09:43,706 INFO L225 Difference]: With dead ends: 353 [2021-11-23 03:09:43,707 INFO L226 Difference]: Without dead ends: 353 [2021-11-23 03:09:43,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 96 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=499, Invalid=3531, Unknown=2, NotChecked=0, Total=4032 [2021-11-23 03:09:43,708 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 464 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 461 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:09:43,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 931 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 570 Invalid, 0 Unknown, 461 Unchecked, 0.5s Time] [2021-11-23 03:09:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-23 03:09:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 304. [2021-11-23 03:09:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 279 states have (on average 1.2795698924731183) internal successors, (357), 303 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 357 transitions. [2021-11-23 03:09:43,715 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 357 transitions. Word has length 46 [2021-11-23 03:09:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:09:43,716 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 357 transitions. [2021-11-23 03:09:43,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.043478260869565) internal successors, (116), 23 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:09:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 357 transitions. [2021-11-23 03:09:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 03:09:43,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:09:43,717 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:09:43,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-23 03:09:43,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-11-23 03:09:43,943 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:09:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:09:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1519711167, now seen corresponding path program 1 times [2021-11-23 03:09:43,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:09:43,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297613276] [2021-11-23 03:09:43,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:43,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:09:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:09:44,270 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:09:44,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297613276] [2021-11-23 03:09:44,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297613276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:09:44,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581990932] [2021-11-23 03:09:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:09:44,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:09:44,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:09:44,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:09:44,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 03:09:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:09:44,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 03:09:44,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:09:44,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:44,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:44,522 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 03:09:44,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:09:44,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:09:44,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-23 03:09:44,714 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 03:09:44,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 49 [2021-11-23 03:09:44,731 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:09:44,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 59 treesize of output 54 [2021-11-23 03:09:44,881 INFO L354 Elim1Store]: treesize reduction 62, result has 27.1 percent of original size [2021-11-23 03:09:44,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 80 treesize of output 75 [2021-11-23 03:09:44,904 INFO L354 Elim1Store]: treesize reduction 84, result has 20.0 percent of original size [2021-11-23 03:09:44,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 82 treesize of output 84 [2021-11-23 03:09:45,124 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-23 03:09:45,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 89 treesize of output 66 [2021-11-23 03:09:45,145 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-23 03:09:45,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 81 treesize of output 79 [2021-11-23 03:09:45,699 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-23 03:09:45,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 61 [2021-11-23 03:09:45,718 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-23 03:09:45,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 31 [2021-11-23 03:09:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:09:45,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:10:07,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27160 treesize of output 27112 [2021-11-23 03:10:07,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3339002 treesize of output 3306234 [2021-11-23 03:10:20,342 WARN L227 SmtUtils]: Spent 13.12s on a formula simplification that was a NOOP. DAG size: 1180 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 03:10:20,451 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 03:10:20,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126499467] [2021-11-23 03:10:20,460 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-23 03:10:20,460 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:10:20,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:10:20,463 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:10:20,463 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:10:20,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:20,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:20,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:20,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 66 treesize of output 64 [2021-11-23 03:10:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:20,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,943 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:10:20,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 220 treesize of output 176 [2021-11-23 03:10:20,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:20,998 INFO L354 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2021-11-23 03:10:20,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 212 treesize of output 196 [2021-11-23 03:10:21,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 144 [2021-11-23 03:10:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:21,117 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:10:21,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 160 treesize of output 139 [2021-11-23 03:10:21,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:21,192 INFO L354 Elim1Store]: treesize reduction 108, result has 23.4 percent of original size [2021-11-23 03:10:21,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 119 treesize of output 123 [2021-11-23 03:10:21,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:21,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:21,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:21,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:21,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 95 treesize of output 102 [2021-11-23 03:10:21,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:21,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,678 INFO L354 Elim1Store]: treesize reduction 234, result has 17.3 percent of original size [2021-11-23 03:10:21,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 272 treesize of output 237 [2021-11-23 03:10:21,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,796 INFO L354 Elim1Store]: treesize reduction 210, result has 18.9 percent of original size [2021-11-23 03:10:21,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 264 treesize of output 257 [2021-11-23 03:10:21,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 196 [2021-11-23 03:10:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:21,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:21,999 INFO L354 Elim1Store]: treesize reduction 422, result has 13.2 percent of original size [2021-11-23 03:10:21,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 25 case distinctions, treesize of input 408 treesize of output 271 [2021-11-23 03:10:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,017 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,109 INFO L354 Elim1Store]: treesize reduction 400, result has 14.2 percent of original size [2021-11-23 03:10:22,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 303 treesize of output 290 [2021-11-23 03:10:22,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:10:22,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,507 INFO L354 Elim1Store]: treesize reduction 354, result has 9.7 percent of original size [2021-11-23 03:10:22,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 600 treesize of output 543 [2021-11-23 03:10:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,530 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,530 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:22,623 INFO L354 Elim1Store]: treesize reduction 322, result has 11.0 percent of original size [2021-11-23 03:10:22,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 607 treesize of output 593 [2021-11-23 03:10:22,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:22,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 614 treesize of output 593 [2021-11-23 03:10:23,145 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:10:23,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 600 treesize of output 594 [2021-11-23 03:10:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,282 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,448 INFO L354 Elim1Store]: treesize reduction 382, result has 10.3 percent of original size [2021-11-23 03:10:23,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 36 case distinctions, treesize of input 692 treesize of output 623 [2021-11-23 03:10:23,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,472 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,564 INFO L354 Elim1Store]: treesize reduction 364, result has 7.6 percent of original size [2021-11-23 03:10:23,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 case distinctions, treesize of input 724 treesize of output 698 [2021-11-23 03:10:23,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,600 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 03:10:23,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 712 treesize of output 695 [2021-11-23 03:10:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:23,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:23,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,004 INFO L354 Elim1Store]: treesize reduction 672, result has 10.6 percent of original size [2021-11-23 03:10:24,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 case distinctions, treesize of input 767 treesize of output 644 [2021-11-23 03:10:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,031 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,256 INFO L354 Elim1Store]: treesize reduction 618, result has 11.7 percent of original size [2021-11-23 03:10:24,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 new quantified variables, introduced 42 case distinctions, treesize of input 759 treesize of output 723 [2021-11-23 03:10:24,319 INFO L354 Elim1Store]: treesize reduction 116, result has 11.5 percent of original size [2021-11-23 03:10:24,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 751 treesize of output 710 [2021-11-23 03:10:24,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:24,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:24,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:25,419 INFO L354 Elim1Store]: treesize reduction 1022, result has 10.7 percent of original size [2021-11-23 03:10:25,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1318 treesize of output 779 [2021-11-23 03:10:25,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:25,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:25,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:25,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:25,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:25,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:25,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:25,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:10:26,017 INFO L354 Elim1Store]: treesize reduction 1044, result has 10.3 percent of original size [2021-11-23 03:10:26,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1290 treesize of output 1044 [2021-11-23 03:10:26,079 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 03:10:26,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1224 treesize of output 1207 [2021-11-23 03:10:30,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:30,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:30,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:30,649 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:10:30,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:30,678 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:10:30,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:30,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:30,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:30,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:30,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:30,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 41 [2021-11-23 03:10:30,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:30,746 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-23 03:10:30,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 128 [2021-11-23 03:10:30,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:10:30,772 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-11-23 03:10:30,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 144 [2021-11-23 03:10:30,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 116 [2021-11-23 03:10:30,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:30,920 INFO L354 Elim1Store]: treesize reduction 144, result has 17.2 percent of original size [2021-11-23 03:10:30,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 176 treesize of output 152 [2021-11-23 03:10:30,962 INFO L354 Elim1Store]: treesize reduction 134, result has 17.3 percent of original size [2021-11-23 03:10:30,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 164 [2021-11-23 03:10:31,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:31,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:31,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:31,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:31,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:31,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-23 03:10:31,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:31,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:10:31,391 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:10:31,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 145 treesize of output 103 [2021-11-23 03:10:31,415 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:10:31,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 137 treesize of output 127 [2021-11-23 03:10:31,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2021-11-23 03:10:31,485 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:10:35,224 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21052#(and (<= 0 |#NULL.base|) (= |ULTIMATE.start_main_~len~0#1| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (or (< (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) 0) (< (select |#length| |ULTIMATE.start_main_~end~0#1.base|) (+ 12 |ULTIMATE.start_main_~end~0#1.offset|))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2021-11-23 03:10:35,224 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:10:35,224 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:10:35,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-11-23 03:10:35,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948445753] [2021-11-23 03:10:35,224 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 03:10:35,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:10:35,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:10:35,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:10:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=2930, Unknown=9, NotChecked=0, Total=3192 [2021-11-23 03:10:35,226 INFO L87 Difference]: Start difference. First operand 304 states and 357 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:10:36,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:10:36,503 INFO L93 Difference]: Finished difference Result 476 states and 543 transitions. [2021-11-23 03:10:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 03:10:36,504 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-23 03:10:36,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:10:36,506 INFO L225 Difference]: With dead ends: 476 [2021-11-23 03:10:36,506 INFO L226 Difference]: Without dead ends: 476 [2021-11-23 03:10:36,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1608 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=338, Invalid=4075, Unknown=9, NotChecked=0, Total=4422 [2021-11-23 03:10:36,508 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 480 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:10:36,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 512 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:10:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-11-23 03:10:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 350. [2021-11-23 03:10:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 325 states have (on average 1.3076923076923077) internal successors, (425), 349 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:10:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 425 transitions. [2021-11-23 03:10:36,517 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 425 transitions. Word has length 46 [2021-11-23 03:10:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:10:36,517 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 425 transitions. [2021-11-23 03:10:36,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:10:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 425 transitions. [2021-11-23 03:10:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 03:10:36,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:10:36,519 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:10:36,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 03:10:36,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-23 03:10:36,743 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:10:36,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:10:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash -157749319, now seen corresponding path program 1 times [2021-11-23 03:10:36,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:10:36,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242746557] [2021-11-23 03:10:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:10:36,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:10:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:10:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:10:37,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:10:37,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242746557] [2021-11-23 03:10:37,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242746557] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:10:37,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099706252] [2021-11-23 03:10:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:10:37,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:10:37,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:10:37,315 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:10:37,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 03:10:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:10:37,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 03:10:37,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:10:37,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:37,457 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:10:37,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:37,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 03:10:37,624 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 03:10:37,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 29 [2021-11-23 03:10:37,808 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-23 03:10:37,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 60 treesize of output 41 [2021-11-23 03:10:44,132 INFO L354 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2021-11-23 03:10:44,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:10:44,269 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-23 03:10:44,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 67 treesize of output 60 [2021-11-23 03:10:44,717 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-23 03:10:44,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 72 [2021-11-23 03:10:45,251 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-23 03:10:45,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 91 [2021-11-23 03:10:48,486 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-23 03:10:48,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 82 [2021-11-23 03:10:51,815 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-23 03:10:51,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 58 [2021-11-23 03:10:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:10:54,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:11:07,845 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (|v_ULTIMATE.start_main_~end~0#1.offset_166| Int)) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base|) (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4) |c_ULTIMATE.start_main_~end~0#1.base|)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) |v_ULTIMATE.start_main_~end~0#1.offset_166| 0) (+ 8 |v_ULTIMATE.start_main_~end~0#1.offset_166|) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2021-11-23 03:11:09,739 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (|v_ULTIMATE.start_main_~end~0#1.offset_166| Int)) (= (select |c_#valid| (select (select (let ((.cse0 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4) |c_ULTIMATE.start_main_~end~0#1.base|))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) |v_ULTIMATE.start_main_~end~0#1.offset_166| 0) (+ 8 |v_ULTIMATE.start_main_~end~0#1.offset_166|) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2021-11-23 03:12:08,213 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 03:12:08,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1218961318] [2021-11-23 03:12:08,215 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-11-23 03:12:08,216 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:12:08,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:12:08,216 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:12:08,216 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:12:08,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:08,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 59 treesize of output 61 [2021-11-23 03:12:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,512 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:12:08,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 248 treesize of output 178 [2021-11-23 03:12:08,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,577 INFO L354 Elim1Store]: treesize reduction 120, result has 17.8 percent of original size [2021-11-23 03:12:08,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 238 treesize of output 210 [2021-11-23 03:12:08,627 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-23 03:12:08,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 228 treesize of output 189 [2021-11-23 03:12:08,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,736 INFO L354 Elim1Store]: treesize reduction 240, result has 14.0 percent of original size [2021-11-23 03:12:08,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 294 treesize of output 215 [2021-11-23 03:12:08,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,796 INFO L354 Elim1Store]: treesize reduction 200, result has 16.3 percent of original size [2021-11-23 03:12:08,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 284 treesize of output 250 [2021-11-23 03:12:08,834 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-23 03:12:08,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 274 treesize of output 231 [2021-11-23 03:12:08,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:08,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:08,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,038 INFO L354 Elim1Store]: treesize reduction 234, result has 11.0 percent of original size [2021-11-23 03:12:09,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 271 treesize of output 212 [2021-11-23 03:12:09,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,085 INFO L354 Elim1Store]: treesize reduction 208, result has 11.5 percent of original size [2021-11-23 03:12:09,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 273 treesize of output 253 [2021-11-23 03:12:09,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:09,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,258 INFO L354 Elim1Store]: treesize reduction 378, result has 12.5 percent of original size [2021-11-23 03:12:09,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 case distinctions, treesize of input 389 treesize of output 288 [2021-11-23 03:12:09,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,362 INFO L354 Elim1Store]: treesize reduction 332, result has 13.5 percent of original size [2021-11-23 03:12:09,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 new quantified variables, introduced 12 case distinctions, treesize of input 381 treesize of output 347 [2021-11-23 03:12:09,397 INFO L354 Elim1Store]: treesize reduction 116, result has 11.5 percent of original size [2021-11-23 03:12:09,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 373 treesize of output 340 [2021-11-23 03:12:09,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,567 INFO L354 Elim1Store]: treesize reduction 468, result has 12.5 percent of original size [2021-11-23 03:12:09,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 356 treesize of output 274 [2021-11-23 03:12:09,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,711 INFO L354 Elim1Store]: treesize reduction 384, result has 13.3 percent of original size [2021-11-23 03:12:09,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 311 treesize of output 288 [2021-11-23 03:12:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:09,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,865 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,916 INFO L354 Elim1Store]: treesize reduction 212, result has 12.4 percent of original size [2021-11-23 03:12:09,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 274 treesize of output 234 [2021-11-23 03:12:09,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:09,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:09,982 INFO L354 Elim1Store]: treesize reduction 206, result has 12.7 percent of original size [2021-11-23 03:12:09,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 270 treesize of output 274 [2021-11-23 03:12:10,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:10,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 71 [2021-11-23 03:12:10,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,269 INFO L354 Elim1Store]: treesize reduction 238, result has 10.5 percent of original size [2021-11-23 03:12:10,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 332 treesize of output 276 [2021-11-23 03:12:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,347 INFO L354 Elim1Store]: treesize reduction 232, result has 10.8 percent of original size [2021-11-23 03:12:10,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 334 treesize of output 338 [2021-11-23 03:12:10,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select 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 [2021-11-23 03:12:10,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,437 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,607 INFO L354 Elim1Store]: treesize reduction 496, result has 12.2 percent of original size [2021-11-23 03:12:10,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 32 case distinctions, treesize of input 450 treesize of output 352 [2021-11-23 03:12:10,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,795 INFO L354 Elim1Store]: treesize reduction 476, result has 13.6 percent of original size [2021-11-23 03:12:10,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 32 case distinctions, treesize of input 442 treesize of output 432 [2021-11-23 03:12:10,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 395 treesize of output 374 [2021-11-23 03:12:10,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:10,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:10,911 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:11,184 INFO L354 Elim1Store]: treesize reduction 680, result has 11.0 percent of original size [2021-11-23 03:12:11,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 12 new quantified variables, introduced 42 case distinctions, treesize of input 560 treesize of output 360 [2021-11-23 03:12:11,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,225 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:11,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:11,492 INFO L354 Elim1Store]: treesize reduction 696, result has 11.7 percent of original size [2021-11-23 03:12:11,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 13 new quantified variables, introduced 42 case distinctions, treesize of input 556 treesize of output 515 [2021-11-23 03:12:11,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:11,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,928 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:11,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:11,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:12,240 INFO L354 Elim1Store]: treesize reduction 485, result has 8.3 percent of original size [2021-11-23 03:12:12,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 59 case distinctions, treesize of input 912 treesize of output 677 [2021-11-23 03:12:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:12,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,275 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:12,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,280 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:12,553 INFO L354 Elim1Store]: treesize reduction 568, result has 7.3 percent of original size [2021-11-23 03:12:12,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 59 case distinctions, treesize of input 957 treesize of output 941 [2021-11-23 03:12:12,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:12,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 962 treesize of output 941 [2021-11-23 03:12:14,150 INFO L354 Elim1Store]: treesize reduction 422, result has 11.0 percent of original size [2021-11-23 03:12:14,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 2312 treesize of output 2230 [2021-11-23 03:12:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,766 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:14,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:14,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:14,778 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:15,270 INFO L354 Elim1Store]: treesize reduction 444, result has 15.3 percent of original size [2021-11-23 03:12:15,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 14 new quantified variables, introduced 63 case distinctions, treesize of input 2723 treesize of output 1696 [2021-11-23 03:12:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:15,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:15,336 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:15,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:15,831 INFO L354 Elim1Store]: treesize reduction 610, result has 13.1 percent of original size [2021-11-23 03:12:15,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 63 case distinctions, treesize of input 2495 treesize of output 2277 [2021-11-23 03:12:15,947 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 03:12:15,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2471 treesize of output 2430 [2021-11-23 03:12:16,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:16,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:16,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:16,915 INFO L354 Elim1Store]: treesize reduction 638, result has 12.1 percent of original size [2021-11-23 03:12:16,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 15 new quantified variables, introduced 65 case distinctions, treesize of input 1808 treesize of output 1121 [2021-11-23 03:12:16,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,949 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:16,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:16,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:16,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:17,398 INFO L354 Elim1Store]: treesize reduction 784, result has 14.4 percent of original size [2021-11-23 03:12:17,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 65 case distinctions, treesize of input 1795 treesize of output 1695 [2021-11-23 03:12:17,485 INFO L354 Elim1Store]: treesize reduction 116, result has 11.5 percent of original size [2021-11-23 03:12:17,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1794 treesize of output 1745 [2021-11-23 03:12:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:18,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:18,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:18,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:18,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:18,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:19,402 INFO L354 Elim1Store]: treesize reduction 1240, result has 9.5 percent of original size [2021-11-23 03:12:19,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 3 disjoint index pairs (out of 105 index pairs), introduced 22 new quantified variables, introduced 120 case distinctions, treesize of input 2514 treesize of output 1324 [2021-11-23 03:12:19,451 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:19,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:19,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:19,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:12:20,731 INFO L354 Elim1Store]: treesize reduction 1600, result has 10.8 percent of original size [2021-11-23 03:12:20,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 3 disjoint index pairs (out of 105 index pairs), introduced 20 new quantified variables, introduced 120 case distinctions, treesize of input 2320 treesize of output 2014 [2021-11-23 03:12:20,844 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-23 03:12:20,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2230 treesize of output 2205 [2021-11-23 03:12:22,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,587 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:12:22,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:22,614 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:12:22,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:22,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:22,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:22,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:22,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 41 [2021-11-23 03:12:22,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:22,687 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-23 03:12:22,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 128 [2021-11-23 03:12:22,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:12:22,716 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-11-23 03:12:22,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 163 treesize of output 144 [2021-11-23 03:12:22,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 89 [2021-11-23 03:12:22,854 INFO L354 Elim1Store]: treesize reduction 114, result has 17.4 percent of original size [2021-11-23 03:12:22,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 129 [2021-11-23 03:12:22,893 INFO L354 Elim1Store]: treesize reduction 128, result has 19.0 percent of original size [2021-11-23 03:12:22,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 166 treesize of output 141 [2021-11-23 03:12:22,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:12:22,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:22,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:23,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:23,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:23,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-23 03:12:23,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:23,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:23,083 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:12:23,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 145 treesize of output 103 [2021-11-23 03:12:23,109 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:12:23,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 137 treesize of output 127 [2021-11-23 03:12:23,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 75 [2021-11-23 03:12:23,178 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:12:33,204 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22226#(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 [2021-11-23 03:12:33,205 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:12:33,205 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:12:33,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2021-11-23 03:12:33,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5861267] [2021-11-23 03:12:33,205 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 03:12:33,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 03:12:33,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:12:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 03:12:33,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=4449, Unknown=41, NotChecked=278, Total=5256 [2021-11-23 03:12:33,208 INFO L87 Difference]: Start difference. First operand 350 states and 425 transitions. Second operand has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 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) [2021-11-23 03:12:41,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:12:41,478 INFO L93 Difference]: Finished difference Result 509 states and 593 transitions. [2021-11-23 03:12:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-23 03:12:41,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 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 [2021-11-23 03:12:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:12:41,482 INFO L225 Difference]: With dead ends: 509 [2021-11-23 03:12:41,482 INFO L226 Difference]: Without dead ends: 509 [2021-11-23 03:12:41,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2485 ImplicationChecksByTransitivity, 101.0s TimeCoverageRelationStatistics Valid=688, Invalid=6248, Unknown=44, NotChecked=330, Total=7310 [2021-11-23 03:12:41,490 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 374 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:12:41,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 939 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 03:12:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2021-11-23 03:12:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 420. [2021-11-23 03:12:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 395 states have (on average 1.3544303797468353) internal successors, (535), 419 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:12:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 535 transitions. [2021-11-23 03:12:41,501 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 535 transitions. Word has length 47 [2021-11-23 03:12:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:12:41,501 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 535 transitions. [2021-11-23 03:12:41,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 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) [2021-11-23 03:12:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 535 transitions. [2021-11-23 03:12:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 03:12:41,502 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:12:41,503 INFO L514 BasicCegarLoop]: 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] [2021-11-23 03:12:41,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 03:12:41,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-11-23 03:12:41,728 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 03:12:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:12:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash -157749318, now seen corresponding path program 1 times [2021-11-23 03:12:41,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:12:41,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99775021] [2021-11-23 03:12:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:41,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:12:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:12:42,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:12:42,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99775021] [2021-11-23 03:12:42,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99775021] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:12:42,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820071965] [2021-11-23 03:12:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:12:42,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:12:42,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:12:42,514 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:12:42,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27fc71a9-4106-4445-a555-fefb51fb8ae5/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 03:12:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:12:42,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-23 03:12:42,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:12:42,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:42,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:42,667 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:12:42,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:42,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2021-11-23 03:12:42,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 03:12:42,896 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 03:12:42,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 88 treesize of output 54 [2021-11-23 03:12:42,910 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-23 03:12:42,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 71 [2021-11-23 03:12:43,160 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-23 03:12:43,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 75 [2021-11-23 03:12:43,202 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-11-23 03:12:43,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 108 treesize of output 104 [2021-11-23 03:12:49,673 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 03:12:49,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 03:12:49,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 03:12:49,822 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-23 03:12:49,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 102 treesize of output 89 [2021-11-23 03:12:49,850 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-23 03:12:49,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 03:12:50,309 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-23 03:12:50,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 110 [2021-11-23 03:12:50,354 INFO L354 Elim1Store]: treesize reduction 160, result has 14.0 percent of original size [2021-11-23 03:12:50,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 119 [2021-11-23 03:12:51,089 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-23 03:12:51,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 136 [2021-11-23 03:12:51,167 INFO L354 Elim1Store]: treesize reduction 218, result has 17.1 percent of original size [2021-11-23 03:12:51,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 155 [2021-11-23 03:12:53,695 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-23 03:12:53,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 127 [2021-11-23 03:12:53,756 INFO L354 Elim1Store]: treesize reduction 236, result has 13.6 percent of original size [2021-11-23 03:12:53,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 140 treesize of output 144 [2021-11-23 03:12:59,606 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-23 03:12:59,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 140 treesize of output 99 [2021-11-23 03:12:59,617 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-23 03:12:59,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 56 [2021-11-23 03:13:00,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:13:00,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:13:24,952 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:13:49,415 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_3 Int)) (let ((.cse3 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse3 |c_ULTIMATE.start_main_~end~0#1.base|)))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ 8 v_subst_3)) (.cse4 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse3 |c_ULTIMATE.start_main_~end~0#1.offset|)))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) v_subst_3 0) .cse2 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4) 12) (select |c_#length| (select (select (store .cse5 .cse1 (store (store (select .cse5 .cse1) v_subst_3 0) .cse2 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse4))))))) (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_4 Int)) (<= 0 (+ 8 (select (select (let ((.cse8 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse8 |c_ULTIMATE.start_main_~end~0#1.offset|))) (.cse7 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse8 |c_ULTIMATE.start_main_~end~0#1.base|)) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store .cse6 .cse7 (store (store (select .cse6 .cse7) v_subst_4 0) (+ 8 v_subst_4) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)))))) is different from false [2021-11-23 03:14:18,137 WARN L227 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:14:20,169 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_4 Int)) (<= 0 (+ 8 (select (select (let ((.cse3 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse0 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse3 |ULTIMATE.start_main_~end~0#1.offset|)))) (.cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse3 |c_ULTIMATE.start_main_~end~0#1.base|))) |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) v_subst_4 0) (+ 8 v_subst_4) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_3 Int)) (let ((.cse9 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse12 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse12 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse9 |c_ULTIMATE.start_main_~end~0#1.base|))))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (.cse7 (+ 8 v_subst_3)) (.cse10 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (let ((.cse5 (let ((.cse8 (store |c_#memory_$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|)))) (store .cse8 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse8 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse9 |ULTIMATE.start_main_~end~0#1.offset|))))) (store .cse5 .cse6 (store (store (select .cse5 .cse6) v_subst_3 0) .cse7 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse10) 12) (select |c_#length| (select (select (store .cse11 .cse6 (store (store (select .cse11 .cse6) v_subst_3 0) .cse7 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse10)))))))) is different from false [2021-11-23 03:15:07,297 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc10#1.base_43| Int)) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc10#1.base_43|) 0)) (and (forall ((|ULTIMATE.start_main_#t~mem4#1.offset| Int) (|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (|ULTIMATE.start_main_#t~mem5#1.offset| Int) (v_subst_3 Int)) (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base|) |ULTIMATE.start_main_#t~mem4#1.offset| 0))) (.cse9 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse4 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4)) (.cse7 (select (select .cse13 |c_ULTIMATE.start_main_~list~0#1.base|) .cse9)) (.cse8 (+ |ULTIMATE.start_main_#t~mem5#1.offset| 8))) (let ((.cse10 (let ((.cse11 (let ((.cse12 (store .cse13 .cse7 (store (select .cse13 .cse7) .cse8 0)))) (store .cse12 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse12 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_43|))))) (store .cse11 |v_ULTIMATE.start_main_#t~malloc10#1.base_43| (store (select .cse11 |v_ULTIMATE.start_main_#t~malloc10#1.base_43|) .cse4 |c_ULTIMATE.start_main_~list~0#1.base|))))) (let ((.cse1 (select (select .cse10 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ 8 v_subst_3))) (<= (+ (select (select (let ((.cse0 (let ((.cse3 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base|) |ULTIMATE.start_main_#t~mem4#1.offset| 0)))) (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 0))))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0))))) (store .cse3 |v_ULTIMATE.start_main_#t~malloc10#1.base_43| (store (select .cse3 |v_ULTIMATE.start_main_#t~malloc10#1.base_43|) .cse4 |ULTIMATE.start_main_~end~0#1.offset|))))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) v_subst_3 0) .cse2 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse9) 12) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc10#1.base_43| 12) (select (select (store .cse10 .cse1 (store (store (select .cse10 .cse1) v_subst_3 0) .cse2 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse9)))))))) (forall ((|ULTIMATE.start_main_#t~mem4#1.offset| Int) (|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (|ULTIMATE.start_main_#t~mem5#1.offset| Int) (v_subst_4 Int)) (<= 0 (+ 8 (let ((.cse25 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (select (select (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem4#1.base|) |ULTIMATE.start_main_#t~mem4#1.offset| 0)))) (let ((.cse17 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4)) (.cse20 (select (select .cse19 |c_ULTIMATE.start_main_~list~0#1.base|) .cse25)) (.cse21 (+ |ULTIMATE.start_main_#t~mem5#1.offset| 8))) (let ((.cse14 (let ((.cse22 (let ((.cse23 (let ((.cse24 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem4#1.base|) |ULTIMATE.start_main_#t~mem4#1.offset| 0)))) (store .cse24 .cse20 (store (select .cse24 .cse20) .cse21 0))))) (store .cse23 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse23 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0))))) (store .cse22 |v_ULTIMATE.start_main_#t~malloc10#1.base_43| (store (select .cse22 |v_ULTIMATE.start_main_#t~malloc10#1.base_43|) .cse17 |ULTIMATE.start_main_~end~0#1.offset|)))) (.cse15 (select (select (let ((.cse16 (let ((.cse18 (store .cse19 .cse20 (store (select .cse19 .cse20) .cse21 0)))) (store .cse18 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse18 |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |v_ULTIMATE.start_main_#t~malloc10#1.base_43|))))) (store .cse16 |v_ULTIMATE.start_main_#t~malloc10#1.base_43| (store (select .cse16 |v_ULTIMATE.start_main_#t~malloc10#1.base_43|) .cse17 |c_ULTIMATE.start_main_~list~0#1.base|))) |c_ULTIMATE.start_main_~list~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (store .cse14 .cse15 (store (store (select .cse14 .cse15) v_subst_4 0) (+ 8 v_subst_4) 0))))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse25)))))))) is different from true [2021-11-23 03:15:31,062 INFO L354 Elim1Store]: treesize reduction 658, result has 26.3 percent of original size [2021-11-23 03:15:31,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 64089455 treesize of output 63860313