./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:06:16,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:06:16,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:06:16,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:06:16,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:06:16,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:06:16,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:06:16,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:06:16,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:06:16,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:06:16,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:06:16,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:06:16,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:06:16,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:06:16,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:06:16,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:06:16,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:06:16,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:06:16,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:06:16,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:06:16,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:06:16,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:06:16,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:06:16,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:06:16,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:06:16,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:06:16,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:06:16,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:06:16,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:06:16,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:06:16,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:06:16,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:06:16,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:06:16,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:06:16,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:06:16,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:06:16,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:06:16,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:06:16,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:06:16,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:06:16,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:06:16,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:06:16,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:06:16,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:06:16,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:06:16,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:06:16,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:06:16,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:06:16,248 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:06:16,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:06:16,248 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:06:16,248 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:06:16,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:06:16,250 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:06:16,250 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:06:16,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:06:16,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:06:16,251 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:06:16,251 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:06:16,251 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:06:16,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:06:16,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:06:16,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:06:16,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:06:16,253 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:06:16,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:06:16,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:06:16,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:06:16,255 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:06:16,255 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:06:16,256 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:06:16,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:06:16,256 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:06:16,256 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:06:16,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:06:16,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:06:16,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:06:16,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:06:16,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:06:16,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:06:16,258 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:06:16,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:06:16,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:06:16,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:06:16,259 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_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba1a5c8c8cff607fde50280cfe0e0975858a4c6ed38f8443d26bb1773b66a31d [2021-11-21 00:06:16,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:06:16,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:06:16,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:06:16,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:06:16,571 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:06:16,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/forester-heap/sll-01-1.i [2021-11-21 00:06:16,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/data/ae767d1e9/365dde96bb4d45f7b49fae1b0fca2ea4/FLAG9fc4da247 [2021-11-21 00:06:17,168 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:06:17,169 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i [2021-11-21 00:06:17,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/data/ae767d1e9/365dde96bb4d45f7b49fae1b0fca2ea4/FLAG9fc4da247 [2021-11-21 00:06:17,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/data/ae767d1e9/365dde96bb4d45f7b49fae1b0fca2ea4 [2021-11-21 00:06:17,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:06:17,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:06:17,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:06:17,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:06:17,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:06:17,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:06:17" (1/1) ... [2021-11-21 00:06:17,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f233a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:17, skipping insertion in model container [2021-11-21 00:06:17,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:06:17" (1/1) ... [2021-11-21 00:06:17,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:06:17,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:06:17,865 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2021-11-21 00:06:17,872 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2021-11-21 00:06:17,874 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2021-11-21 00:06:17,875 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2021-11-21 00:06:17,878 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2021-11-21 00:06:17,879 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2021-11-21 00:06:17,881 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2021-11-21 00:06:17,882 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2021-11-21 00:06:17,883 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2021-11-21 00:06:17,884 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2021-11-21 00:06:17,886 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2021-11-21 00:06:17,887 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2021-11-21 00:06:17,888 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2021-11-21 00:06:17,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:06:17,910 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:06:17,953 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22034,22047] [2021-11-21 00:06:17,956 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22307,22320] [2021-11-21 00:06:17,958 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22516,22529] [2021-11-21 00:06:17,959 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22586,22599] [2021-11-21 00:06:17,962 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22853,22866] [2021-11-21 00:06:17,963 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[22961,22974] [2021-11-21 00:06:17,965 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23192,23205] [2021-11-21 00:06:17,966 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23272,23285] [2021-11-21 00:06:17,967 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23351,23364] [2021-11-21 00:06:17,968 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23441,23454] [2021-11-21 00:06:17,970 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23619,23632] [2021-11-21 00:06:17,971 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23697,23710] [2021-11-21 00:06:17,972 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_aed04fbe-294d-49c0-af8b-464459709ea7/sv-benchmarks/c/forester-heap/sll-01-1.i[23774,23787] [2021-11-21 00:06:17,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:06:18,004 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:06:18,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18 WrapperNode [2021-11-21 00:06:18,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:06:18,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:06:18,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:06:18,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:06:18,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,085 INFO L137 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 227 [2021-11-21 00:06:18,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:06:18,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:06:18,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:06:18,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:06:18,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:06:18,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:06:18,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:06:18,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:06:18,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (1/1) ... [2021-11-21 00:06:18,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:06:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:18,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:06:18,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:06:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:06:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:06:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:06:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:06:18,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:06:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:06:18,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:06:18,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:06:18,352 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:06:18,354 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:06:18,954 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:06:19,034 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:06:19,035 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-21 00:06:19,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:06:19 BoogieIcfgContainer [2021-11-21 00:06:19,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:06:19,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:06:19,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:06:19,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:06:19,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:06:17" (1/3) ... [2021-11-21 00:06:19,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae1505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:06:19, skipping insertion in model container [2021-11-21 00:06:19,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:18" (2/3) ... [2021-11-21 00:06:19,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae1505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:06:19, skipping insertion in model container [2021-11-21 00:06:19,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:06:19" (3/3) ... [2021-11-21 00:06:19,051 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-01-1.i [2021-11-21 00:06:19,060 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:06:19,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2021-11-21 00:06:19,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:06:19,111 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 [2021-11-21 00:06:19,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2021-11-21 00:06:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-21 00:06:19,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:19,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-21 00:06:19,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:19,142 INFO L85 PathProgramCache]: Analyzing trace with hash 14698, now seen corresponding path program 1 times [2021-11-21 00:06:19,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:19,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091129772] [2021-11-21 00:06:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:19,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:19,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:19,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091129772] [2021-11-21 00:06:19,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091129772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:19,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:19,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:06:19,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424398221] [2021-11-21 00:06:19,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:19,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:19,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:19,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:19,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:19,376 INFO L87 Difference]: Start difference. First operand has 169 states, 90 states have (on average 2.411111111111111) internal successors, (217), 168 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:19,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:19,619 INFO L93 Difference]: Finished difference Result 169 states and 177 transitions. [2021-11-21 00:06:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:19,622 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 [2021-11-21 00:06:19,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:19,637 INFO L225 Difference]: With dead ends: 169 [2021-11-21 00:06:19,637 INFO L226 Difference]: Without dead ends: 167 [2021-11-21 00:06:19,639 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 [2021-11-21 00:06:19,644 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 161 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:19,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 91 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:19,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-21 00:06:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 163. [2021-11-21 00:06:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 93 states have (on average 1.8709677419354838) internal successors, (174), 162 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 174 transitions. [2021-11-21 00:06:19,715 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 174 transitions. Word has length 2 [2021-11-21 00:06:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:19,718 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 174 transitions. [2021-11-21 00:06:19,720 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) [2021-11-21 00:06:19,720 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 174 transitions. [2021-11-21 00:06:19,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-21 00:06:19,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:19,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-21 00:06:19,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:06:19,721 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:19,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:19,726 INFO L85 PathProgramCache]: Analyzing trace with hash 14699, now seen corresponding path program 1 times [2021-11-21 00:06:19,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:19,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498513856] [2021-11-21 00:06:19,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:19,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:19,791 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:19,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498513856] [2021-11-21 00:06:19,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498513856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:19,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:19,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:06:19,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43372760] [2021-11-21 00:06:19,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:19,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:19,805 INFO L87 Difference]: Start difference. First operand 163 states and 174 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:19,963 INFO L93 Difference]: Finished difference Result 190 states and 200 transitions. [2021-11-21 00:06:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:19,964 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 [2021-11-21 00:06:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:19,969 INFO L225 Difference]: With dead ends: 190 [2021-11-21 00:06:19,969 INFO L226 Difference]: Without dead ends: 190 [2021-11-21 00:06:19,969 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 [2021-11-21 00:06:19,972 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 152 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:19,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 117 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-21 00:06:19,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 171. [2021-11-21 00:06:20,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 108 states have (on average 1.787037037037037) internal successors, (193), 170 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 193 transitions. [2021-11-21 00:06:20,008 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 193 transitions. Word has length 2 [2021-11-21 00:06:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:20,008 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 193 transitions. [2021-11-21 00:06:20,008 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) [2021-11-21 00:06:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 193 transitions. [2021-11-21 00:06:20,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:06:20,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:20,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:06:20,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:06:20,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:20,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:20,013 INFO L85 PathProgramCache]: Analyzing trace with hash 14124170, now seen corresponding path program 1 times [2021-11-21 00:06:20,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:20,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247478230] [2021-11-21 00:06:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:20,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:20,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:20,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247478230] [2021-11-21 00:06:20,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247478230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:20,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:20,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:06:20,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804604070] [2021-11-21 00:06:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:20,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:20,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:20,050 INFO L87 Difference]: Start difference. First operand 171 states and 193 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:20,113 INFO L93 Difference]: Finished difference Result 186 states and 196 transitions. [2021-11-21 00:06:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:20,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 00:06:20,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:20,115 INFO L225 Difference]: With dead ends: 186 [2021-11-21 00:06:20,115 INFO L226 Difference]: Without dead ends: 186 [2021-11-21 00:06:20,115 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 [2021-11-21 00:06:20,116 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 150 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:20,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 154 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2021-11-21 00:06:20,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 169. [2021-11-21 00:06:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 168 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2021-11-21 00:06:20,125 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 4 [2021-11-21 00:06:20,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:20,125 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2021-11-21 00:06:20,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2021-11-21 00:06:20,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:06:20,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:20,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:20,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:06:20,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -106303121, now seen corresponding path program 1 times [2021-11-21 00:06:20,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:20,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746194929] [2021-11-21 00:06:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:20,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:20,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746194929] [2021-11-21 00:06:20,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746194929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:20,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:20,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:20,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696160736] [2021-11-21 00:06:20,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:20,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:20,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:20,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:20,192 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:20,385 INFO L93 Difference]: Finished difference Result 168 states and 189 transitions. [2021-11-21 00:06:20,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:06:20,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 00:06:20,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:20,386 INFO L225 Difference]: With dead ends: 168 [2021-11-21 00:06:20,386 INFO L226 Difference]: Without dead ends: 168 [2021-11-21 00:06:20,387 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 [2021-11-21 00:06:20,388 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:20,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 409 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-21 00:06:20,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2021-11-21 00:06:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 107 states have (on average 1.766355140186916) internal successors, (189), 167 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 189 transitions. [2021-11-21 00:06:20,395 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 189 transitions. Word has length 9 [2021-11-21 00:06:20,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:20,395 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 189 transitions. [2021-11-21 00:06:20,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 189 transitions. [2021-11-21 00:06:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:06:20,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:20,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:20,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:06:20,397 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:20,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash -106303120, now seen corresponding path program 1 times [2021-11-21 00:06:20,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457244416] [2021-11-21 00:06:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:20,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:20,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:20,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:20,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457244416] [2021-11-21 00:06:20,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457244416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:20,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:20,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:20,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939951147] [2021-11-21 00:06:20,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:20,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:20,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:20,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:20,480 INFO L87 Difference]: Start difference. First operand 168 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:20,670 INFO L93 Difference]: Finished difference Result 167 states and 188 transitions. [2021-11-21 00:06:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:06:20,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 00:06:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:20,671 INFO L225 Difference]: With dead ends: 167 [2021-11-21 00:06:20,671 INFO L226 Difference]: Without dead ends: 167 [2021-11-21 00:06:20,672 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 [2021-11-21 00:06:20,673 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:20,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 420 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-21 00:06:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2021-11-21 00:06:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 107 states have (on average 1.7570093457943925) internal successors, (188), 166 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 188 transitions. [2021-11-21 00:06:20,679 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 188 transitions. Word has length 9 [2021-11-21 00:06:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:20,679 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 188 transitions. [2021-11-21 00:06:20,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 188 transitions. [2021-11-21 00:06:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:06:20,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:20,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:20,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:06:20,680 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:20,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash 922299713, now seen corresponding path program 1 times [2021-11-21 00:06:20,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:20,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356851886] [2021-11-21 00:06:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:20,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:20,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:20,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356851886] [2021-11-21 00:06:20,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356851886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:20,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:20,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 00:06:20,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184383900] [2021-11-21 00:06:20,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:20,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:06:20,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:20,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:06:20,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:06:20,808 INFO L87 Difference]: Start difference. First operand 167 states and 188 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:21,091 INFO L93 Difference]: Finished difference Result 167 states and 187 transitions. [2021-11-21 00:06:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:06:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:21,093 INFO L225 Difference]: With dead ends: 167 [2021-11-21 00:06:21,093 INFO L226 Difference]: Without dead ends: 167 [2021-11-21 00:06:21,093 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 [2021-11-21 00:06:21,094 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 142 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:21,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 431 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:21,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-21 00:06:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-11-21 00:06:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 107 states have (on average 1.7476635514018692) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2021-11-21 00:06:21,100 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2021-11-21 00:06:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:21,100 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2021-11-21 00:06:21,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2021-11-21 00:06:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:06:21,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:21,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:21,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:06:21,102 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:21,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:21,103 INFO L85 PathProgramCache]: Analyzing trace with hash 922299714, now seen corresponding path program 1 times [2021-11-21 00:06:21,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:21,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124329852] [2021-11-21 00:06:21,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:21,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:21,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:21,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:21,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124329852] [2021-11-21 00:06:21,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124329852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:21,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:21,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 00:06:21,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237412897] [2021-11-21 00:06:21,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:21,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:06:21,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:21,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:06:21,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:06:21,281 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:21,732 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2021-11-21 00:06:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:21,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:06:21,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:21,734 INFO L225 Difference]: With dead ends: 166 [2021-11-21 00:06:21,734 INFO L226 Difference]: Without dead ends: 166 [2021-11-21 00:06:21,734 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 [2021-11-21 00:06:21,735 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 139 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:21,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 431 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 00:06:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-21 00:06:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 165. [2021-11-21 00:06:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 107 states have (on average 1.7383177570093458) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2021-11-21 00:06:21,747 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 11 [2021-11-21 00:06:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:21,747 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2021-11-21 00:06:21,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2021-11-21 00:06:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:06:21,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:21,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:21,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:06:21,753 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 402977103, now seen corresponding path program 1 times [2021-11-21 00:06:21,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:21,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817878504] [2021-11-21 00:06:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:21,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:21,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:21,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817878504] [2021-11-21 00:06:21,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817878504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:21,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:21,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:21,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436912942] [2021-11-21 00:06:21,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:21,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:21,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:21,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:21,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:21,816 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:21,857 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2021-11-21 00:06:21,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:06:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:21,858 INFO L225 Difference]: With dead ends: 166 [2021-11-21 00:06:21,858 INFO L226 Difference]: Without dead ends: 166 [2021-11-21 00:06:21,859 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 [2021-11-21 00:06:21,860 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:21,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 261 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:06:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-21 00:06:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-21 00:06:21,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 165 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2021-11-21 00:06:21,866 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 11 [2021-11-21 00:06:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:21,867 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2021-11-21 00:06:21,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2021-11-21 00:06:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:06:21,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:21,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:21,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:06:21,869 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -392184971, now seen corresponding path program 1 times [2021-11-21 00:06:21,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:21,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194955703] [2021-11-21 00:06:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:21,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:21,956 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:21,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194955703] [2021-11-21 00:06:21,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194955703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:21,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:21,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:21,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652652818] [2021-11-21 00:06:21,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:21,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:21,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:21,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:21,959 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:22,114 INFO L93 Difference]: Finished difference Result 246 states and 272 transitions. [2021-11-21 00:06:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:06:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 00:06:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:22,116 INFO L225 Difference]: With dead ends: 246 [2021-11-21 00:06:22,116 INFO L226 Difference]: Without dead ends: 246 [2021-11-21 00:06:22,116 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 [2021-11-21 00:06:22,117 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:22,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 386 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:22,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-21 00:06:22,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 163. [2021-11-21 00:06:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.7358490566037736) internal successors, (184), 162 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2021-11-21 00:06:22,122 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 12 [2021-11-21 00:06:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:22,123 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2021-11-21 00:06:22,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,123 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2021-11-21 00:06:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 00:06:22,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:22,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:22,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:06:22,124 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:22,125 INFO L85 PathProgramCache]: Analyzing trace with hash -975517286, now seen corresponding path program 1 times [2021-11-21 00:06:22,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:22,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236367406] [2021-11-21 00:06:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:22,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:22,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:22,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236367406] [2021-11-21 00:06:22,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236367406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:22,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:22,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:22,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566757709] [2021-11-21 00:06:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:22,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:06:22,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:06:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:06:22,162 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:22,285 INFO L93 Difference]: Finished difference Result 246 states and 271 transitions. [2021-11-21 00:06:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:06:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-21 00:06:22,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:22,287 INFO L225 Difference]: With dead ends: 246 [2021-11-21 00:06:22,288 INFO L226 Difference]: Without dead ends: 246 [2021-11-21 00:06:22,288 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 [2021-11-21 00:06:22,289 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 84 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:22,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 340 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-21 00:06:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 165. [2021-11-21 00:06:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 108 states have (on average 1.7222222222222223) internal successors, (186), 164 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2021-11-21 00:06:22,298 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 15 [2021-11-21 00:06:22,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:22,299 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2021-11-21 00:06:22,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2021-11-21 00:06:22,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:06:22,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:22,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:22,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 00:06:22,303 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:22,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:22,304 INFO L85 PathProgramCache]: Analyzing trace with hash -635957056, now seen corresponding path program 1 times [2021-11-21 00:06:22,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:22,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467267255] [2021-11-21 00:06:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:22,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:22,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:22,404 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:22,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467267255] [2021-11-21 00:06:22,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467267255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:22,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:22,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:06:22,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509509759] [2021-11-21 00:06:22,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:22,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:06:22,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:22,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:06:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:06:22,406 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2021-11-21 00:06:22,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:22,660 INFO L93 Difference]: Finished difference Result 222 states and 235 transitions. [2021-11-21 00:06:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:06:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2021-11-21 00:06:22,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:22,662 INFO L225 Difference]: With dead ends: 222 [2021-11-21 00:06:22,662 INFO L226 Difference]: Without dead ends: 222 [2021-11-21 00:06:22,662 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 [2021-11-21 00:06:22,663 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 210 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:22,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 160 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:22,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-21 00:06:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 184. [2021-11-21 00:06:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.7480314960629921) internal successors, (222), 183 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 222 transitions. [2021-11-21 00:06:22,668 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 222 transitions. Word has length 16 [2021-11-21 00:06:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:22,669 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 222 transitions. [2021-11-21 00:06:22,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2021-11-21 00:06:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 222 transitions. [2021-11-21 00:06:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:06:22,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:22,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:22,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:06:22,670 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash -635957057, now seen corresponding path program 1 times [2021-11-21 00:06:22,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:22,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602413329] [2021-11-21 00:06:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:22,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:22,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:22,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602413329] [2021-11-21 00:06:22,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602413329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:22,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:22,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:22,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177004492] [2021-11-21 00:06:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:22,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:06:22,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:06:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:06:22,704 INFO L87 Difference]: Start difference. First operand 184 states and 222 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) 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) [2021-11-21 00:06:22,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:22,842 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2021-11-21 00:06:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:06:22,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) 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 [2021-11-21 00:06:22,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:22,844 INFO L225 Difference]: With dead ends: 176 [2021-11-21 00:06:22,844 INFO L226 Difference]: Without dead ends: 176 [2021-11-21 00:06:22,845 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 [2021-11-21 00:06:22,845 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 209 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:22,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 81 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:22,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-21 00:06:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2021-11-21 00:06:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 127 states have (on average 1.6141732283464567) internal successors, (205), 172 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2021-11-21 00:06:22,851 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 16 [2021-11-21 00:06:22,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:22,851 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2021-11-21 00:06:22,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) 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) [2021-11-21 00:06:22,852 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2021-11-21 00:06:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:06:22,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:22,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:22,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:06:22,853 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:22,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:22,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1269325843, now seen corresponding path program 1 times [2021-11-21 00:06:22,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:22,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343275704] [2021-11-21 00:06:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:22,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:22,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:22,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343275704] [2021-11-21 00:06:22,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343275704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:22,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:22,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:22,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061142153] [2021-11-21 00:06:22,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:22,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:06:22,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:22,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:06:22,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:06:22,882 INFO L87 Difference]: Start difference. First operand 173 states and 205 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:22,998 INFO L93 Difference]: Finished difference Result 201 states and 213 transitions. [2021-11-21 00:06:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:06:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 00:06:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:22,999 INFO L225 Difference]: With dead ends: 201 [2021-11-21 00:06:22,999 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:06:23,000 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 [2021-11-21 00:06:23,000 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 184 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 201 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:06:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 171. [2021-11-21 00:06:23,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 126 states have (on average 1.6031746031746033) internal successors, (202), 170 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 202 transitions. [2021-11-21 00:06:23,018 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 202 transitions. Word has length 18 [2021-11-21 00:06:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,019 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 202 transitions. [2021-11-21 00:06:23,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 202 transitions. [2021-11-21 00:06:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:06:23,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:23,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 00:06:23,020 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029620, now seen corresponding path program 1 times [2021-11-21 00:06:23,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315945625] [2021-11-21 00:06:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:23,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:23,073 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:23,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315945625] [2021-11-21 00:06:23,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315945625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:23,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:23,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:23,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489933074] [2021-11-21 00:06:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:23,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:23,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:23,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:23,076 INFO L87 Difference]: Start difference. First operand 171 states and 202 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:23,241 INFO L93 Difference]: Finished difference Result 171 states and 202 transitions. [2021-11-21 00:06:23,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:06:23,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 00:06:23,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:23,243 INFO L225 Difference]: With dead ends: 171 [2021-11-21 00:06:23,243 INFO L226 Difference]: Without dead ends: 171 [2021-11-21 00:06:23,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:06:23,244 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 84 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 248 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-21 00:06:23,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2021-11-21 00:06:23,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.5952380952380953) internal successors, (201), 169 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 201 transitions. [2021-11-21 00:06:23,248 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 201 transitions. Word has length 18 [2021-11-21 00:06:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,248 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 201 transitions. [2021-11-21 00:06:23,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 201 transitions. [2021-11-21 00:06:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:06:23,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:23,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 00:06:23,250 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1269029619, now seen corresponding path program 1 times [2021-11-21 00:06:23,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462429818] [2021-11-21 00:06:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:23,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:23,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462429818] [2021-11-21 00:06:23,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462429818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:23,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:23,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:23,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252809125] [2021-11-21 00:06:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:23,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:23,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:23,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:23,310 INFO L87 Difference]: Start difference. First operand 170 states and 201 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:23,501 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2021-11-21 00:06:23,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 00:06:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:23,503 INFO L225 Difference]: With dead ends: 162 [2021-11-21 00:06:23,503 INFO L226 Difference]: Without dead ends: 162 [2021-11-21 00:06:23,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:06:23,504 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 31 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 293 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:23,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-21 00:06:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2021-11-21 00:06:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 122 states have (on average 1.5327868852459017) internal successors, (187), 156 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 187 transitions. [2021-11-21 00:06:23,510 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 187 transitions. Word has length 18 [2021-11-21 00:06:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,510 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 187 transitions. [2021-11-21 00:06:23,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 187 transitions. [2021-11-21 00:06:23,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:06:23,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,511 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] [2021-11-21 00:06:23,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 00:06:23,512 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,512 INFO L85 PathProgramCache]: Analyzing trace with hash 233249804, now seen corresponding path program 1 times [2021-11-21 00:06:23,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903864393] [2021-11-21 00:06:23,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:23,553 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:23,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903864393] [2021-11-21 00:06:23,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903864393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:23,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:23,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:23,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717018558] [2021-11-21 00:06:23,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:23,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:23,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:23,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:23,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:23,564 INFO L87 Difference]: Start difference. First operand 157 states and 187 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:23,699 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2021-11-21 00:06:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 00:06:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:23,701 INFO L225 Difference]: With dead ends: 158 [2021-11-21 00:06:23,701 INFO L226 Difference]: Without dead ends: 158 [2021-11-21 00:06:23,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:06:23,702 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 28 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 338 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-21 00:06:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 153. [2021-11-21 00:06:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 120 states have (on average 1.525) internal successors, (183), 152 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2021-11-21 00:06:23,717 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 20 [2021-11-21 00:06:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,718 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2021-11-21 00:06:23,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2021-11-21 00:06:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 00:06:23,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,721 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] [2021-11-21 00:06:23,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 00:06:23,722 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1038454311, now seen corresponding path program 1 times [2021-11-21 00:06:23,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357920234] [2021-11-21 00:06:23,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:23,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:23,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:23,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357920234] [2021-11-21 00:06:23,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357920234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:23,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:23,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:23,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024618088] [2021-11-21 00:06:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:23,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:23,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:23,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:23,769 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:23,813 INFO L93 Difference]: Finished difference Result 218 states and 263 transitions. [2021-11-21 00:06:23,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:23,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-21 00:06:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:23,819 INFO L225 Difference]: With dead ends: 218 [2021-11-21 00:06:23,819 INFO L226 Difference]: Without dead ends: 218 [2021-11-21 00:06:23,819 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 [2021-11-21 00:06:23,822 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 45 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 203 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:06:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-21 00:06:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 157. [2021-11-21 00:06:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 124 states have (on average 1.5241935483870968) internal successors, (189), 156 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2021-11-21 00:06:23,829 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 23 [2021-11-21 00:06:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,830 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2021-11-21 00:06:23,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2021-11-21 00:06:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 00:06:23,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,837 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] [2021-11-21 00:06:23,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 00:06:23,838 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1038456107, now seen corresponding path program 1 times [2021-11-21 00:06:23,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108819067] [2021-11-21 00:06:23,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:23,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:23,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108819067] [2021-11-21 00:06:23,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108819067] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:23,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:23,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:23,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018081272] [2021-11-21 00:06:23,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:23,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:23,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:23,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:23,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:23,905 INFO L87 Difference]: Start difference. First operand 157 states and 189 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:23,956 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2021-11-21 00:06:23,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:23,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-21 00:06:23,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:23,958 INFO L225 Difference]: With dead ends: 155 [2021-11-21 00:06:23,958 INFO L226 Difference]: Without dead ends: 155 [2021-11-21 00:06:23,958 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 [2021-11-21 00:06:23,959 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 18 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:23,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 177 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:06:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-21 00:06:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-21 00:06:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 123 states have (on average 1.5121951219512195) internal successors, (186), 154 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2021-11-21 00:06:23,966 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 23 [2021-11-21 00:06:23,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:23,966 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2021-11-21 00:06:23,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:23,967 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2021-11-21 00:06:23,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 00:06:23,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:23,970 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] [2021-11-21 00:06:23,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 00:06:23,971 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:23,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2127372574, now seen corresponding path program 1 times [2021-11-21 00:06:23,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:23,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929791463] [2021-11-21 00:06:23,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:23,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:24,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:24,075 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:24,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929791463] [2021-11-21 00:06:24,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929791463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:24,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:24,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:06:24,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106167057] [2021-11-21 00:06:24,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:24,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:06:24,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:24,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:06:24,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:06:24,080 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:24,345 INFO L93 Difference]: Finished difference Result 246 states and 284 transitions. [2021-11-21 00:06:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:06:24,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 00:06:24,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:24,348 INFO L225 Difference]: With dead ends: 246 [2021-11-21 00:06:24,348 INFO L226 Difference]: Without dead ends: 246 [2021-11-21 00:06:24,348 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 [2021-11-21 00:06:24,349 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 185 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:24,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 401 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 00:06:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-21 00:06:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 166. [2021-11-21 00:06:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 165 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2021-11-21 00:06:24,354 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 24 [2021-11-21 00:06:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:24,354 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2021-11-21 00:06:24,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2021-11-21 00:06:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 00:06:24,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:24,362 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] [2021-11-21 00:06:24,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 00:06:24,363 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:24,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash -52715562, now seen corresponding path program 1 times [2021-11-21 00:06:24,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:24,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093492710] [2021-11-21 00:06:24,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:24,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:24,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:24,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093492710] [2021-11-21 00:06:24,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093492710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:06:24,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661919923] [2021-11-21 00:06:24,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:24,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:24,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:24,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:24,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:06:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:24,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-21 00:06:24,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:24,626 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 [2021-11-21 00:06:24,656 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 [2021-11-21 00:06:24,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:24,772 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 [2021-11-21 00:06:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:24,783 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 [2021-11-21 00:06:25,235 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-11-21 00:06:25,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 49 treesize of output 40 [2021-11-21 00:06:25,261 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-11-21 00:06:25,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 31 treesize of output 22 [2021-11-21 00:06:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:25,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:26,971 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 38 treesize of output 36 [2021-11-21 00:06:26,975 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 36 treesize of output 34 [2021-11-21 00:06:26,988 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 48 treesize of output 46 [2021-11-21 00:06:26,994 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 47 treesize of output 45 [2021-11-21 00:06:27,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:27,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661919923] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:27,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [292867003] [2021-11-21 00:06:27,041 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-21 00:06:27,041 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:06:27,046 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:06:27,052 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:06:27,053 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:06:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,128 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 [2021-11-21 00:06:27,213 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 [2021-11-21 00:06:27,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,253 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 [2021-11-21 00:06:27,277 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 [2021-11-21 00:06:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,602 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 [2021-11-21 00:06:27,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,618 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 [2021-11-21 00:06:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:27,680 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 [2021-11-21 00:06:30,440 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:06:31,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [292867003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:31,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:06:31,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 6, 6] total 24 [2021-11-21 00:06:31,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567612634] [2021-11-21 00:06:31,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:31,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 00:06:31,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 00:06:31,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=375, Unknown=1, NotChecked=0, Total=552 [2021-11-21 00:06:31,781 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:32,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:32,337 INFO L93 Difference]: Finished difference Result 216 states and 251 transitions. [2021-11-21 00:06:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 00:06:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-21 00:06:32,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:32,339 INFO L225 Difference]: With dead ends: 216 [2021-11-21 00:06:32,339 INFO L226 Difference]: Without dead ends: 216 [2021-11-21 00:06:32,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=176, Invalid=375, Unknown=1, NotChecked=0, Total=552 [2021-11-21 00:06:32,342 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 88 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:32,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 318 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 00:06:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-21 00:06:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 188. [2021-11-21 00:06:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 156 states have (on average 1.4294871794871795) internal successors, (223), 187 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2021-11-21 00:06:32,350 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 26 [2021-11-21 00:06:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:32,350 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2021-11-21 00:06:32,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2021-11-21 00:06:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:06:32,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:32,352 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] [2021-11-21 00:06:32,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 00:06:32,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:32,571 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:32,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295682, now seen corresponding path program 1 times [2021-11-21 00:06:32,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:32,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865639578] [2021-11-21 00:06:32,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:32,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:32,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:32,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865639578] [2021-11-21 00:06:32,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865639578] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:32,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:32,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:06:32,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205858456] [2021-11-21 00:06:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:32,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:06:32,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:06:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:06:32,721 INFO L87 Difference]: Start difference. First operand 188 states and 223 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:33,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:33,256 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2021-11-21 00:06:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:06:33,257 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 00:06:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:33,259 INFO L225 Difference]: With dead ends: 321 [2021-11-21 00:06:33,259 INFO L226 Difference]: Without dead ends: 321 [2021-11-21 00:06:33,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2021-11-21 00:06:33,260 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 377 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:33,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 597 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 00:06:33,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-21 00:06:33,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 197. [2021-11-21 00:06:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 167 states have (on average 1.3952095808383234) internal successors, (233), 196 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 233 transitions. [2021-11-21 00:06:33,268 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 233 transitions. Word has length 27 [2021-11-21 00:06:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:33,268 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 233 transitions. [2021-11-21 00:06:33,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 233 transitions. [2021-11-21 00:06:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:06:33,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:33,269 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] [2021-11-21 00:06:33,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 00:06:33,270 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1546295683, now seen corresponding path program 1 times [2021-11-21 00:06:33,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:33,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164955280] [2021-11-21 00:06:33,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:33,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:33,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:33,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164955280] [2021-11-21 00:06:33,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164955280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:33,490 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:33,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:06:33,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906076437] [2021-11-21 00:06:33,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:33,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:06:33,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:33,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:06:33,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:06:33,494 INFO L87 Difference]: Start difference. First operand 197 states and 233 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:34,092 INFO L93 Difference]: Finished difference Result 373 states and 415 transitions. [2021-11-21 00:06:34,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 00:06:34,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 00:06:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:34,096 INFO L225 Difference]: With dead ends: 373 [2021-11-21 00:06:34,096 INFO L226 Difference]: Without dead ends: 373 [2021-11-21 00:06:34,097 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 [2021-11-21 00:06:34,098 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 524 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:34,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [524 Valid, 499 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 00:06:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-11-21 00:06:34,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 203. [2021-11-21 00:06:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 173 states have (on average 1.3872832369942196) internal successors, (240), 202 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 240 transitions. [2021-11-21 00:06:34,105 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 240 transitions. Word has length 27 [2021-11-21 00:06:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:34,106 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 240 transitions. [2021-11-21 00:06:34,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 240 transitions. [2021-11-21 00:06:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:06:34,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:34,107 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] [2021-11-21 00:06:34,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 00:06:34,107 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:34,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749567, now seen corresponding path program 1 times [2021-11-21 00:06:34,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:34,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115783269] [2021-11-21 00:06:34,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:34,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:34,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:34,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115783269] [2021-11-21 00:06:34,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115783269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:34,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:34,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:34,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583755971] [2021-11-21 00:06:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:34,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:34,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:34,148 INFO L87 Difference]: Start difference. First operand 203 states and 240 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:34,274 INFO L93 Difference]: Finished difference Result 202 states and 239 transitions. [2021-11-21 00:06:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:06:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 00:06:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:34,277 INFO L225 Difference]: With dead ends: 202 [2021-11-21 00:06:34,277 INFO L226 Difference]: Without dead ends: 202 [2021-11-21 00:06:34,277 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 [2021-11-21 00:06:34,278 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:34,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 301 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-21 00:06:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-11-21 00:06:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 173 states have (on average 1.3815028901734103) internal successors, (239), 201 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 239 transitions. [2021-11-21 00:06:34,285 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 239 transitions. Word has length 27 [2021-11-21 00:06:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:34,285 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 239 transitions. [2021-11-21 00:06:34,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 239 transitions. [2021-11-21 00:06:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:06:34,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:34,286 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] [2021-11-21 00:06:34,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 00:06:34,286 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2014749568, now seen corresponding path program 1 times [2021-11-21 00:06:34,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:34,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017091833] [2021-11-21 00:06:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:34,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:34,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:34,356 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:34,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017091833] [2021-11-21 00:06:34,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017091833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:34,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:34,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:06:34,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128920142] [2021-11-21 00:06:34,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:34,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:34,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:34,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:34,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:34,359 INFO L87 Difference]: Start difference. First operand 202 states and 239 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:34,501 INFO L93 Difference]: Finished difference Result 201 states and 238 transitions. [2021-11-21 00:06:34,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:06:34,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-21 00:06:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:34,502 INFO L225 Difference]: With dead ends: 201 [2021-11-21 00:06:34,503 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:06:34,503 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 [2021-11-21 00:06:34,504 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:34,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 298 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:06:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 00:06:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3757225433526012) internal successors, (238), 200 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 238 transitions. [2021-11-21 00:06:34,510 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 238 transitions. Word has length 27 [2021-11-21 00:06:34,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:34,511 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 238 transitions. [2021-11-21 00:06:34,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:34,511 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 238 transitions. [2021-11-21 00:06:34,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 00:06:34,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:34,512 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] [2021-11-21 00:06:34,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 00:06:34,512 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -121860294, now seen corresponding path program 1 times [2021-11-21 00:06:34,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:34,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367582678] [2021-11-21 00:06:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:34,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:34,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367582678] [2021-11-21 00:06:34,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367582678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:06:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51465609] [2021-11-21 00:06:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:34,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:34,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:34,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:34,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:06:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:34,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-21 00:06:34,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:34,787 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 [2021-11-21 00:06:34,841 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:06:34,841 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 [2021-11-21 00:06:34,872 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 [2021-11-21 00:06:34,962 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:06:34,962 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 [2021-11-21 00:06:35,094 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-21 00:06:35,095 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 [2021-11-21 00:06:41,392 INFO L354 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2021-11-21 00:06:41,392 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 [2021-11-21 00:06:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:41,476 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:06:41,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51465609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:41,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:06:41,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 20 [2021-11-21 00:06:41,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156169712] [2021-11-21 00:06:41,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:41,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:06:41,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:41,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:06:41,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=328, Unknown=2, NotChecked=0, Total=380 [2021-11-21 00:06:41,478 INFO L87 Difference]: Start difference. First operand 201 states and 238 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:43,817 INFO L93 Difference]: Finished difference Result 315 states and 365 transitions. [2021-11-21 00:06:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:06:43,820 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-21 00:06:43,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:43,822 INFO L225 Difference]: With dead ends: 315 [2021-11-21 00:06:43,822 INFO L226 Difference]: Without dead ends: 312 [2021-11-21 00:06:43,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=70, Invalid=479, Unknown=3, NotChecked=0, Total=552 [2021-11-21 00:06:43,823 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 131 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 128 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:43,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 514 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 294 Invalid, 0 Unknown, 128 Unchecked, 0.2s Time] [2021-11-21 00:06:43,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-21 00:06:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 201. [2021-11-21 00:06:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.369942196531792) internal successors, (237), 200 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 237 transitions. [2021-11-21 00:06:43,828 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 237 transitions. Word has length 29 [2021-11-21 00:06:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:43,829 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 237 transitions. [2021-11-21 00:06:43,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 237 transitions. [2021-11-21 00:06:43,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 00:06:43,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:43,830 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] [2021-11-21 00:06:43,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:06:44,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-21 00:06:44,030 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -68526270, now seen corresponding path program 1 times [2021-11-21 00:06:44,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541767713] [2021-11-21 00:06:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:44,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:44,366 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:44,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541767713] [2021-11-21 00:06:44,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541767713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:44,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:44,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-21 00:06:44,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372119488] [2021-11-21 00:06:44,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:44,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:06:44,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:44,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:06:44,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:06:44,368 INFO L87 Difference]: Start difference. First operand 201 states and 237 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:45,385 INFO L93 Difference]: Finished difference Result 381 states and 415 transitions. [2021-11-21 00:06:45,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-21 00:06:45,386 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-21 00:06:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:45,388 INFO L225 Difference]: With dead ends: 381 [2021-11-21 00:06:45,389 INFO L226 Difference]: Without dead ends: 381 [2021-11-21 00:06:45,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2021-11-21 00:06:45,390 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 511 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:45,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 902 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:06:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2021-11-21 00:06:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 201. [2021-11-21 00:06:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 173 states have (on average 1.3641618497109826) internal successors, (236), 200 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 236 transitions. [2021-11-21 00:06:45,398 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 236 transitions. Word has length 29 [2021-11-21 00:06:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:45,399 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 236 transitions. [2021-11-21 00:06:45,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 236 transitions. [2021-11-21 00:06:45,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 00:06:45,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:45,400 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] [2021-11-21 00:06:45,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 00:06:45,400 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash -855629912, now seen corresponding path program 1 times [2021-11-21 00:06:45,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:45,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503871237] [2021-11-21 00:06:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:45,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:45,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:45,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503871237] [2021-11-21 00:06:45,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503871237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:45,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:45,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:06:45,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979532000] [2021-11-21 00:06:45,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:45,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:06:45,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:45,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:06:45,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:06:45,514 INFO L87 Difference]: Start difference. First operand 201 states and 236 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:45,852 INFO L93 Difference]: Finished difference Result 201 states and 236 transitions. [2021-11-21 00:06:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 00:06:45,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-21 00:06:45,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:45,854 INFO L225 Difference]: With dead ends: 201 [2021-11-21 00:06:45,854 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:06:45,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-21 00:06:45,855 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 57 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:45,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 530 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:06:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:06:45,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 200. [2021-11-21 00:06:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 173 states have (on average 1.3583815028901733) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2021-11-21 00:06:45,861 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2021-11-21 00:06:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:45,862 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2021-11-21 00:06:45,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2021-11-21 00:06:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 00:06:45,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:45,863 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] [2021-11-21 00:06:45,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 00:06:45,863 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:45,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:45,864 INFO L85 PathProgramCache]: Analyzing trace with hash -855629911, now seen corresponding path program 1 times [2021-11-21 00:06:45,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:45,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768489962] [2021-11-21 00:06:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:45,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:45,991 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:45,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768489962] [2021-11-21 00:06:45,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768489962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:45,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:45,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:06:45,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804495389] [2021-11-21 00:06:45,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:45,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:06:45,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:06:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:06:45,994 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:46,395 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2021-11-21 00:06:46,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 00:06:46,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-21 00:06:46,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:46,397 INFO L225 Difference]: With dead ends: 200 [2021-11-21 00:06:46,397 INFO L226 Difference]: Without dead ends: 200 [2021-11-21 00:06:46,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-21 00:06:46,398 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 56 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:46,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 411 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:06:46,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-21 00:06:46,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2021-11-21 00:06:46,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 173 states have (on average 1.3526011560693643) internal successors, (234), 198 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2021-11-21 00:06:46,405 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 29 [2021-11-21 00:06:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:46,406 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2021-11-21 00:06:46,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2021-11-21 00:06:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 00:06:46,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:46,407 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] [2021-11-21 00:06:46,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-21 00:06:46,407 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:46,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:46,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1262003309, now seen corresponding path program 1 times [2021-11-21 00:06:46,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:46,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846224043] [2021-11-21 00:06:46,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:46,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:46,438 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:46,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846224043] [2021-11-21 00:06:46,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846224043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:46,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:46,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:46,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755155980] [2021-11-21 00:06:46,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:46,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:46,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:46,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:46,440 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:46,492 INFO L93 Difference]: Finished difference Result 200 states and 235 transitions. [2021-11-21 00:06:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:46,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-21 00:06:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:46,495 INFO L225 Difference]: With dead ends: 200 [2021-11-21 00:06:46,495 INFO L226 Difference]: Without dead ends: 200 [2021-11-21 00:06:46,496 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 [2021-11-21 00:06:46,497 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:46,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:06:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-21 00:06:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-21 00:06:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 174 states have (on average 1.3505747126436782) internal successors, (235), 199 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 235 transitions. [2021-11-21 00:06:46,504 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 235 transitions. Word has length 29 [2021-11-21 00:06:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:46,504 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 235 transitions. [2021-11-21 00:06:46,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 235 transitions. [2021-11-21 00:06:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 00:06:46,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:46,505 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] [2021-11-21 00:06:46,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-21 00:06:46,506 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:46,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1174961652, now seen corresponding path program 1 times [2021-11-21 00:06:46,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:46,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985998713] [2021-11-21 00:06:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:46,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:06:46,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:46,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985998713] [2021-11-21 00:06:46,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985998713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:46,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:46,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 00:06:46,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356680048] [2021-11-21 00:06:46,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:46,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:06:46,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:46,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:06:46,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:06:46,635 INFO L87 Difference]: Start difference. First operand 200 states and 235 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:47,005 INFO L93 Difference]: Finished difference Result 265 states and 309 transitions. [2021-11-21 00:06:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:06:47,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-21 00:06:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:47,007 INFO L225 Difference]: With dead ends: 265 [2021-11-21 00:06:47,007 INFO L226 Difference]: Without dead ends: 265 [2021-11-21 00:06:47,007 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 [2021-11-21 00:06:47,008 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 196 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:47,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 545 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:06:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-21 00:06:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 188. [2021-11-21 00:06:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3641975308641976) internal successors, (221), 187 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 221 transitions. [2021-11-21 00:06:47,013 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 221 transitions. Word has length 30 [2021-11-21 00:06:47,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:47,014 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 221 transitions. [2021-11-21 00:06:47,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 221 transitions. [2021-11-21 00:06:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 00:06:47,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:47,014 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] [2021-11-21 00:06:47,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-21 00:06:47,015 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:47,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1990784287, now seen corresponding path program 1 times [2021-11-21 00:06:47,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:47,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093092824] [2021-11-21 00:06:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:47,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:47,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:47,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093092824] [2021-11-21 00:06:47,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093092824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:47,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:47,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:47,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031914736] [2021-11-21 00:06:47,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:47,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:47,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:47,069 INFO L87 Difference]: Start difference. First operand 188 states and 221 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:47,232 INFO L93 Difference]: Finished difference Result 190 states and 222 transitions. [2021-11-21 00:06:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:06:47,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-21 00:06:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:47,234 INFO L225 Difference]: With dead ends: 190 [2021-11-21 00:06:47,234 INFO L226 Difference]: Without dead ends: 190 [2021-11-21 00:06:47,234 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 [2021-11-21 00:06:47,235 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:47,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 218 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-21 00:06:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2021-11-21 00:06:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 162 states have (on average 1.3580246913580247) internal successors, (220), 187 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2021-11-21 00:06:47,243 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 30 [2021-11-21 00:06:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:47,243 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2021-11-21 00:06:47,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2021-11-21 00:06:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 00:06:47,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:47,244 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] [2021-11-21 00:06:47,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-21 00:06:47,245 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash -467082512, now seen corresponding path program 1 times [2021-11-21 00:06:47,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:47,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388506869] [2021-11-21 00:06:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:47,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:47,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:47,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388506869] [2021-11-21 00:06:47,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388506869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:47,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:47,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:06:47,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893194418] [2021-11-21 00:06:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:06:47,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:06:47,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:06:47,328 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:47,424 INFO L93 Difference]: Finished difference Result 195 states and 229 transitions. [2021-11-21 00:06:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:06:47,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-21 00:06:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:47,426 INFO L225 Difference]: With dead ends: 195 [2021-11-21 00:06:47,426 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 00:06:47,426 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 [2021-11-21 00:06:47,427 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 16 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:47,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 159 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 00:06:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 185. [2021-11-21 00:06:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35625) internal successors, (217), 184 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2021-11-21 00:06:47,438 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 30 [2021-11-21 00:06:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:47,439 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2021-11-21 00:06:47,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2021-11-21 00:06:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 00:06:47,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:47,440 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] [2021-11-21 00:06:47,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-21 00:06:47,440 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1352456197, now seen corresponding path program 1 times [2021-11-21 00:06:47,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:47,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79055075] [2021-11-21 00:06:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:47,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:47,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:47,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79055075] [2021-11-21 00:06:47,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79055075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:47,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:47,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-21 00:06:47,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157097124] [2021-11-21 00:06:47,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:47,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 00:06:47,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 00:06:47,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-21 00:06:47,728 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:48,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:48,449 INFO L93 Difference]: Finished difference Result 272 states and 307 transitions. [2021-11-21 00:06:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:06:48,450 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-21 00:06:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:48,451 INFO L225 Difference]: With dead ends: 272 [2021-11-21 00:06:48,451 INFO L226 Difference]: Without dead ends: 272 [2021-11-21 00:06:48,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2021-11-21 00:06:48,452 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 270 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:48,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 816 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 00:06:48,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-21 00:06:48,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 185. [2021-11-21 00:06:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 160 states have (on average 1.35) internal successors, (216), 184 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:48,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 216 transitions. [2021-11-21 00:06:48,458 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 216 transitions. Word has length 32 [2021-11-21 00:06:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:48,458 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 216 transitions. [2021-11-21 00:06:48,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 216 transitions. [2021-11-21 00:06:48,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:06:48,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:48,459 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] [2021-11-21 00:06:48,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-21 00:06:48,459 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr60REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:48,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:48,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1602252178, now seen corresponding path program 1 times [2021-11-21 00:06:48,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:48,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652399584] [2021-11-21 00:06:48,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:48,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:48,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652399584] [2021-11-21 00:06:48,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652399584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:06:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836096522] [2021-11-21 00:06:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:48,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:48,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:48,572 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:48,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:06:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:48,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-21 00:06:48,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:48,649 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 [2021-11-21 00:06:48,653 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 [2021-11-21 00:06:48,698 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-21 00:06:48,698 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 [2021-11-21 00:06:48,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:48,706 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 [2021-11-21 00:06:49,035 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-21 00:06:49,035 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 47 treesize of output 33 [2021-11-21 00:06:49,040 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-21 00:06:49,041 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 27 treesize of output 13 [2021-11-21 00:06:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:49,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:49,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836096522] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:49,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1239927523] [2021-11-21 00:06:49,270 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2021-11-21 00:06:49,270 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:06:49,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:06:49,271 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:06:49,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:06:49,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,310 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 [2021-11-21 00:06:49,371 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 [2021-11-21 00:06:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,399 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 [2021-11-21 00:06:49,412 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 [2021-11-21 00:06:49,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,782 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 [2021-11-21 00:06:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,800 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 [2021-11-21 00:06:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:49,833 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 [2021-11-21 00:06:54,307 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:06:55,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1239927523] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:55,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:06:55,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7, 6, 5] total 21 [2021-11-21 00:06:55,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900510685] [2021-11-21 00:06:55,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:55,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 00:06:55,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:55,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 00:06:55,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-21 00:06:55,974 INFO L87 Difference]: Start difference. First operand 185 states and 216 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 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) [2021-11-21 00:06:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:56,650 INFO L93 Difference]: Finished difference Result 192 states and 223 transitions. [2021-11-21 00:06:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:06:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 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 34 [2021-11-21 00:06:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:56,652 INFO L225 Difference]: With dead ends: 192 [2021-11-21 00:06:56,652 INFO L226 Difference]: Without dead ends: 192 [2021-11-21 00:06:56,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-21 00:06:56,653 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 27 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:56,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 448 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 657 Invalid, 0 Unknown, 91 Unchecked, 0.7s Time] [2021-11-21 00:06:56,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-11-21 00:06:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 187. [2021-11-21 00:06:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 162 states have (on average 1.345679012345679) internal successors, (218), 186 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:06:56,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 218 transitions. [2021-11-21 00:06:56,660 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 218 transitions. Word has length 34 [2021-11-21 00:06:56,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:56,660 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 218 transitions. [2021-11-21 00:06:56,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 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) [2021-11-21 00:06:56,661 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 218 transitions. [2021-11-21 00:06:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:06:56,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:56,661 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] [2021-11-21 00:06:56,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 00:06:56,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-21 00:06:56,884 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:06:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1602248556, now seen corresponding path program 1 times [2021-11-21 00:06:56,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973168721] [2021-11-21 00:06:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:56,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:56,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973168721] [2021-11-21 00:06:56,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973168721] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:06:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362803534] [2021-11-21 00:06:56,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:56,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:56,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:56,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:06:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:57,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:06:57,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:57,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:06:57,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362803534] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:57,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [841576956] [2021-11-21 00:06:57,347 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 00:06:57,347 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:06:57,347 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:06:57,348 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:06:57,348 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:06:57,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,394 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 [2021-11-21 00:06:57,447 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 [2021-11-21 00:06:57,475 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 [2021-11-21 00:06:57,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,496 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 [2021-11-21 00:06:57,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,749 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 [2021-11-21 00:06:57,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,771 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 [2021-11-21 00:06:57,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:06:57,783 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 [2021-11-21 00:07:01,862 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:07:03,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [841576956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:03,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:07:03,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [2, 2, 2] total 18 [2021-11-21 00:07:03,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718312644] [2021-11-21 00:07:03,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:03,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 00:07:03,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:03,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 00:07:03,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-21 00:07:03,447 INFO L87 Difference]: Start difference. First operand 187 states and 218 transitions. Second operand has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:03,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:03,839 INFO L93 Difference]: Finished difference Result 188 states and 218 transitions. [2021-11-21 00:07:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 00:07:03,840 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 00:07:03,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:03,841 INFO L225 Difference]: With dead ends: 188 [2021-11-21 00:07:03,841 INFO L226 Difference]: Without dead ends: 169 [2021-11-21 00:07:03,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 76 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2021-11-21 00:07:03,842 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 51 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:03,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 260 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 342 Invalid, 0 Unknown, 102 Unchecked, 0.4s Time] [2021-11-21 00:07:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-21 00:07:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-21 00:07:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.375) internal successors, (198), 168 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 198 transitions. [2021-11-21 00:07:03,847 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 198 transitions. Word has length 34 [2021-11-21 00:07:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:03,847 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 198 transitions. [2021-11-21 00:07:03,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 198 transitions. [2021-11-21 00:07:03,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 00:07:03,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:03,848 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] [2021-11-21 00:07:03,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:07:04,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-21 00:07:04,060 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:07:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:04,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2125355099, now seen corresponding path program 1 times [2021-11-21 00:07:04,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:04,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157462625] [2021-11-21 00:07:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:04,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:04,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:04,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157462625] [2021-11-21 00:07:04,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157462625] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:07:04,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351533316] [2021-11-21 00:07:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:04,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:07:04,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:07:04,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:07:04,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:07:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:04,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:07:04,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:07:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:04,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:07:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:04,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351533316] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:07:04,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1130126813] [2021-11-21 00:07:04,315 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-21 00:07:04,315 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:07:04,316 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:07:04,316 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:07:04,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:07:04,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,342 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 [2021-11-21 00:07:04,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,392 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 [2021-11-21 00:07:04,414 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 [2021-11-21 00:07:04,433 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 [2021-11-21 00:07:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,689 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 22 treesize of output 30 [2021-11-21 00:07:04,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,736 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 [2021-11-21 00:07:04,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,776 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 [2021-11-21 00:07:04,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,790 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 50 treesize of output 49 [2021-11-21 00:07:04,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:04,978 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:07:04,978 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 157 [2021-11-21 00:07:04,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:05,000 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:07:05,000 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 220 treesize of output 189 [2021-11-21 00:07:05,015 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-21 00:07:05,015 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 167 treesize of output 140 [2021-11-21 00:07:05,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:05,210 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-21 00:07:05,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 264 treesize of output 182 [2021-11-21 00:07:05,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:05,248 INFO L354 Elim1Store]: treesize reduction 114, result has 20.8 percent of original size [2021-11-21 00:07:05,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 254 treesize of output 226 [2021-11-21 00:07:05,255 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 193 treesize of output 166 [2021-11-21 00:07:10,033 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:07:12,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1130126813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:12,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:07:12,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [4, 4, 4] total 23 [2021-11-21 00:07:12,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659614713] [2021-11-21 00:07:12,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:12,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 00:07:12,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 00:07:12,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2021-11-21 00:07:12,328 INFO L87 Difference]: Start difference. First operand 169 states and 198 transitions. Second operand has 20 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:13,736 INFO L93 Difference]: Finished difference Result 232 states and 265 transitions. [2021-11-21 00:07:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-21 00:07:13,736 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-21 00:07:13,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:13,740 INFO L225 Difference]: With dead ends: 232 [2021-11-21 00:07:13,740 INFO L226 Difference]: Without dead ends: 232 [2021-11-21 00:07:13,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 84 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-21 00:07:13,741 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 94 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:13,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 654 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 00:07:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-21 00:07:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 196. [2021-11-21 00:07:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 171 states have (on average 1.3976608187134503) internal successors, (239), 195 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) [2021-11-21 00:07:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 239 transitions. [2021-11-21 00:07:13,747 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 239 transitions. Word has length 36 [2021-11-21 00:07:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:13,747 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 239 transitions. [2021-11-21 00:07:13,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 239 transitions. [2021-11-21 00:07:13,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 00:07:13,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:13,749 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] [2021-11-21 00:07:13,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:07:13,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-21 00:07:13,976 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:07:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash -41538152, now seen corresponding path program 1 times [2021-11-21 00:07:13,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:13,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788640272] [2021-11-21 00:07:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:13,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:07:14,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788640272] [2021-11-21 00:07:14,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788640272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:07:14,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755728524] [2021-11-21 00:07:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:14,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:07:14,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:07:14,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:07:14,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:07:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:14,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-21 00:07:14,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:07:14,223 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 [2021-11-21 00:07:14,248 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 [2021-11-21 00:07:14,253 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 [2021-11-21 00:07:14,325 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:07:14,326 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 [2021-11-21 00:07:14,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:14,367 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 25 treesize of output 24 [2021-11-21 00:07:14,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:14,373 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 [2021-11-21 00:07:14,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:14,467 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:07:14,468 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 3 case distinctions, treesize of input 71 treesize of output 52 [2021-11-21 00:07:14,480 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-21 00:07:14,480 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 61 treesize of output 54 [2021-11-21 00:07:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:14,640 INFO L354 Elim1Store]: treesize reduction 108, result has 18.2 percent of original size [2021-11-21 00:07:14,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 73 [2021-11-21 00:07:14,664 INFO L354 Elim1Store]: treesize reduction 84, result has 20.0 percent of original size [2021-11-21 00:07:14,665 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 91 treesize of output 87 [2021-11-21 00:07:21,269 INFO L354 Elim1Store]: treesize reduction 56, result has 5.1 percent of original size [2021-11-21 00:07:21,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 49 [2021-11-21 00:07:21,285 INFO L354 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2021-11-21 00:07:21,285 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 37 treesize of output 26 [2021-11-21 00:07:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:07:21,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:07:26,699 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 44 treesize of output 42 [2021-11-21 00:07:26,703 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 42 treesize of output 40 [2021-11-21 00:07:26,706 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 129 treesize of output 125 [2021-11-21 00:07:26,721 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 146 treesize of output 144 [2021-11-21 00:07:26,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:07:26,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755728524] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:07:26,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [760824830] [2021-11-21 00:07:26,796 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2021-11-21 00:07:26,796 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:07:26,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:07:26,798 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:07:26,798 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:07:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:26,852 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 [2021-11-21 00:07:26,880 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 [2021-11-21 00:07:26,898 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 [2021-11-21 00:07:26,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:26,919 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 [2021-11-21 00:07:27,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,171 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 22 treesize of output 30 [2021-11-21 00:07:27,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,250 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 [2021-11-21 00:07:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,295 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 50 treesize of output 49 [2021-11-21 00:07:27,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,342 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 [2021-11-21 00:07:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,528 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:07:27,528 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 157 [2021-11-21 00:07:27,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,559 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:07:27,560 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 220 treesize of output 189 [2021-11-21 00:07:27,594 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-21 00:07:27,595 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 210 treesize of output 171 [2021-11-21 00:07:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,861 INFO L354 Elim1Store]: treesize reduction 174, result has 14.7 percent of original size [2021-11-21 00:07:27,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 276 treesize of output 194 [2021-11-21 00:07:27,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:07:27,902 INFO L354 Elim1Store]: treesize reduction 138, result has 17.9 percent of original size [2021-11-21 00:07:27,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 266 treesize of output 229 [2021-11-21 00:07:27,913 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 193 treesize of output 166 [2021-11-21 00:07:36,279 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:07:40,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [760824830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:40,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:07:40,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [10, 11, 7] total 43 [2021-11-21 00:07:40,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357942797] [2021-11-21 00:07:40,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:40,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-21 00:07:40,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:40,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-21 00:07:40,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=434, Invalid=1368, Unknown=4, NotChecked=0, Total=1806 [2021-11-21 00:07:40,218 INFO L87 Difference]: Start difference. First operand 196 states and 239 transitions. Second operand has 21 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:41,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:41,342 INFO L93 Difference]: Finished difference Result 195 states and 227 transitions. [2021-11-21 00:07:41,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-21 00:07:41,343 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-21 00:07:41,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:41,344 INFO L225 Difference]: With dead ends: 195 [2021-11-21 00:07:41,344 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 00:07:41,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 78 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=458, Invalid=1430, Unknown=4, NotChecked=0, Total=1892 [2021-11-21 00:07:41,346 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 41 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:41,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 407 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 493 Invalid, 0 Unknown, 95 Unchecked, 0.7s Time] [2021-11-21 00:07:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 00:07:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 192. [2021-11-21 00:07:41,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 167 states have (on average 1.341317365269461) internal successors, (224), 191 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) [2021-11-21 00:07:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2021-11-21 00:07:41,352 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 39 [2021-11-21 00:07:41,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:41,353 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2021-11-21 00:07:41,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2021-11-21 00:07:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-21 00:07:41,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:41,354 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] [2021-11-21 00:07:41,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:07:41,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:07:41,580 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:07:41,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:41,580 INFO L85 PathProgramCache]: Analyzing trace with hash 586306947, now seen corresponding path program 1 times [2021-11-21 00:07:41,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:41,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052097046] [2021-11-21 00:07:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:41,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:41,626 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:41,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052097046] [2021-11-21 00:07:41,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052097046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:41,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:41,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:07:41,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150039779] [2021-11-21 00:07:41,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:41,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:07:41,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:41,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:07:41,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:07:41,630 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:41,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:41,753 INFO L93 Difference]: Finished difference Result 202 states and 235 transitions. [2021-11-21 00:07:41,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:07:41,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-21 00:07:41,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:41,755 INFO L225 Difference]: With dead ends: 202 [2021-11-21 00:07:41,755 INFO L226 Difference]: Without dead ends: 202 [2021-11-21 00:07:41,756 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 [2021-11-21 00:07:41,756 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 8 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:41,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 252 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:07:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-21 00:07:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 194. [2021-11-21 00:07:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 169 states have (on average 1.3372781065088757) internal successors, (226), 193 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) [2021-11-21 00:07:41,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 226 transitions. [2021-11-21 00:07:41,762 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 226 transitions. Word has length 40 [2021-11-21 00:07:41,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:41,763 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 226 transitions. [2021-11-21 00:07:41,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:07:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 226 transitions. [2021-11-21 00:07:41,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:07:41,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:41,764 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] [2021-11-21 00:07:41,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-21 00:07:41,765 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:07:41,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:41,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1230011898, now seen corresponding path program 1 times [2021-11-21 00:07:41,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:41,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195695177] [2021-11-21 00:07:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:41,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:42,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:42,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195695177] [2021-11-21 00:07:42,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195695177] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:07:42,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583419730] [2021-11-21 00:07:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:42,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:07:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:07:42,057 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:07:42,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 00:07:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:42,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-21 00:07:42,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:07:42,131 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 [2021-11-21 00:07:42,166 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 [2021-11-21 00:07:42,171 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 [2021-11-21 00:07:42,309 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:07:42,309 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 [2021-11-21 00:07:42,383 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:07:42,386 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 26 [2021-11-21 00:07:42,413 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:07:42,413 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 [2021-11-21 00:07:42,643 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:07:42,644 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 77 treesize of output 71 [2021-11-21 00:07:42,658 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:07:42,658 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 73 treesize of output 72 [2021-11-21 00:07:43,448 INFO L354 Elim1Store]: treesize reduction 118, result has 16.9 percent of original size [2021-11-21 00:07:43,448 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 112 treesize of output 92 [2021-11-21 00:07:43,480 INFO L354 Elim1Store]: treesize reduction 84, result has 20.0 percent of original size [2021-11-21 00:07:43,480 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 104 treesize of output 102 [2021-11-21 00:07:45,703 INFO L354 Elim1Store]: treesize reduction 63, result has 11.3 percent of original size [2021-11-21 00:07:45,704 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 107 treesize of output 76 [2021-11-21 00:07:45,712 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-11-21 00:07:45,713 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 64 treesize of output 46 [2021-11-21 00:07:45,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:45,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:07:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:07:54,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583419730] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 00:07:54,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:07:54,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 11] total 29 [2021-11-21 00:07:54,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062573178] [2021-11-21 00:07:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:54,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:07:54,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:54,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:07:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=659, Unknown=1, NotChecked=0, Total=812 [2021-11-21 00:07:54,242 INFO L87 Difference]: Start difference. First operand 194 states and 226 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:01,849 WARN L227 SmtUtils]: Spent 7.51s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 00:08:02,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:02,331 INFO L93 Difference]: Finished difference Result 354 states and 382 transitions. [2021-11-21 00:08:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 00:08:02,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-21 00:08:02,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:02,334 INFO L225 Difference]: With dead ends: 354 [2021-11-21 00:08:02,334 INFO L226 Difference]: Without dead ends: 354 [2021-11-21 00:08:02,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=217, Invalid=1114, Unknown=1, NotChecked=0, Total=1332 [2021-11-21 00:08:02,335 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 351 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 158 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:02,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 427 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 351 Invalid, 0 Unknown, 158 Unchecked, 0.4s Time] [2021-11-21 00:08:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-11-21 00:08:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 220. [2021-11-21 00:08:02,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 195 states have (on average 1.3128205128205128) internal successors, (256), 219 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 256 transitions. [2021-11-21 00:08:02,343 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 256 transitions. Word has length 41 [2021-11-21 00:08:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:02,343 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 256 transitions. [2021-11-21 00:08:02,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:02,344 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 256 transitions. [2021-11-21 00:08:02,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:08:02,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:02,345 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] [2021-11-21 00:08:02,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-21 00:08:02,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-21 00:08:02,564 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:08:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1230011897, now seen corresponding path program 1 times [2021-11-21 00:08:02,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:02,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187057154] [2021-11-21 00:08:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:02,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:02,953 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:02,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187057154] [2021-11-21 00:08:02,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187057154] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:08:02,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571117783] [2021-11-21 00:08:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:02,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:02,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:02,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:02,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 00:08:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:03,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-21 00:08:03,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:03,055 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 [2021-11-21 00:08:03,098 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 [2021-11-21 00:08:03,105 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 [2021-11-21 00:08:03,267 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:08:03,268 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 [2021-11-21 00:08:03,274 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 [2021-11-21 00:08:03,337 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-21 00:08:03,337 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 [2021-11-21 00:08:03,359 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:08:03,359 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 [2021-11-21 00:08:03,526 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:03,527 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 78 treesize of output 72 [2021-11-21 00:08:03,545 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:03,545 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 74 treesize of output 76 [2021-11-21 00:08:04,031 INFO L354 Elim1Store]: treesize reduction 118, result has 16.9 percent of original size [2021-11-21 00:08:04,032 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 [2021-11-21 00:08:04,065 INFO L354 Elim1Store]: treesize reduction 146, result has 16.1 percent of original size [2021-11-21 00:08:04,066 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 [2021-11-21 00:08:06,319 INFO L354 Elim1Store]: treesize reduction 63, result has 11.3 percent of original size [2021-11-21 00:08:06,319 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 105 treesize of output 74 [2021-11-21 00:08:06,327 INFO L354 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2021-11-21 00:08:06,328 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 62 treesize of output 40 [2021-11-21 00:08:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:06,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:08:20,286 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 152 treesize of output 136 [2021-11-21 00:08:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:22,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571117783] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:08:22,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1220757682] [2021-11-21 00:08:22,914 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2021-11-21 00:08:22,914 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:08:22,914 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:08:22,914 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:08:22,914 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:08:22,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:22,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:22,947 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 [2021-11-21 00:08:22,998 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 [2021-11-21 00:08:23,007 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 [2021-11-21 00:08:23,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:23,042 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 [2021-11-21 00:08:23,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:23,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:08:23,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:23,332 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 [2021-11-21 00:08:23,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:23,381 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 [2021-11-21 00:08:24,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,077 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 22 treesize of output 30 [2021-11-21 00:08:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:08:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,148 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 57 treesize of output 52 [2021-11-21 00:08:24,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,201 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 28 treesize of output 23 [2021-11-21 00:08:24,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,407 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:08:24,407 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 2 case distinctions, treesize of input 35 treesize of output 33 [2021-11-21 00:08:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,443 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 [2021-11-21 00:08:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:24,485 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-21 00:08:24,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 59 [2021-11-21 00:08:25,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:08:25,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:08:25,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:25,220 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 [2021-11-21 00:08:26,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,103 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 27 treesize of output 38 [2021-11-21 00:08:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,285 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 0 case distinctions, treesize of input 79 treesize of output 80 [2021-11-21 00:08:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,344 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 0 case distinctions, treesize of input 44 treesize of output 45 [2021-11-21 00:08:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,377 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 [2021-11-21 00:08:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,609 INFO L354 Elim1Store]: treesize reduction 222, result has 15.6 percent of original size [2021-11-21 00:08:26,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 266 treesize of output 177 [2021-11-21 00:08:26,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,663 INFO L354 Elim1Store]: treesize reduction 202, result has 16.2 percent of original size [2021-11-21 00:08:26,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 202 treesize of output 188 [2021-11-21 00:08:26,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:26,846 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 [2021-11-21 00:08:28,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:28,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:28,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:28,168 INFO L354 Elim1Store]: treesize reduction 216, result has 17.9 percent of original size [2021-11-21 00:08:28,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 422 treesize of output 427 [2021-11-21 00:08:28,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:28,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:28,184 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:28,242 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-11-21 00:08:28,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 429 treesize of output 393 [2021-11-21 00:08:28,279 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:08:28,279 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 436 treesize of output 415 [2021-11-21 00:08:31,311 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 00:08:31,311 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 394 treesize of output 400 [2021-11-21 00:08:31,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:31,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:31,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:31,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:31,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:32,096 INFO L354 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2021-11-21 00:08:32,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 479 treesize of output 447 [2021-11-21 00:08:32,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:32,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:32,194 INFO L354 Elim1Store]: treesize reduction 242, result has 13.9 percent of original size [2021-11-21 00:08:32,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 511 treesize of output 504 [2021-11-21 00:08:32,238 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:08:32,238 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 499 treesize of output 482 [2021-11-21 00:08:33,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:33,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:33,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:33,968 INFO L354 Elim1Store]: treesize reduction 194, result has 20.2 percent of original size [2021-11-21 00:08:33,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 723 treesize of output 469 [2021-11-21 00:08:33,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:33,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:33,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:08:34,084 INFO L354 Elim1Store]: treesize reduction 306, result has 20.9 percent of original size [2021-11-21 00:08:34,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 674 treesize of output 654 [2021-11-21 00:08:34,123 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:08:34,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 673 treesize of output 656 [2021-11-21 00:08:36,755 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 [2021-11-21 00:08:36,765 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 [2021-11-21 00:08:36,770 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 [2021-11-21 00:08:37,016 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:08:37,016 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 [2021-11-21 00:08:37,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-21 00:08:37,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:37,092 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 [2021-11-21 00:08:37,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:37,121 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 [2021-11-21 00:08:37,146 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 [2021-11-21 00:08:37,348 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:37,349 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 118 treesize of output 116 [2021-11-21 00:08:37,380 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:37,380 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 110 treesize of output 92 [2021-11-21 00:08:37,530 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 [2021-11-21 00:08:38,048 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 13 treesize of output 9 [2021-11-21 00:08:38,058 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 [2021-11-21 00:08:38,074 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 [2021-11-21 00:08:39,183 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 00:08:39,183 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 [2021-11-21 00:08:39,236 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:08:39,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:08:39,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:39,365 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:08:39,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 303 treesize of output 326 [2021-11-21 00:08:39,434 INFO L354 Elim1Store]: treesize reduction 40, result has 43.7 percent of original size [2021-11-21 00:08:39,434 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 356 treesize of output 363 [2021-11-21 00:08:39,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:39,497 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:08:39,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 363 treesize of output 386 [2021-11-21 00:08:39,960 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:39,960 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 125 treesize of output 107 [2021-11-21 00:08:39,988 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:08:39,989 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 121 treesize of output 115 [2021-11-21 00:08:40,150 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 [2021-11-21 00:08:40,563 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:08:43,067 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:08:43,067 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:08:43,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 8] total 29 [2021-11-21 00:08:43,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064019819] [2021-11-21 00:08:43,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:08:43,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-21 00:08:43,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-21 00:08:43,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=2244, Unknown=1, NotChecked=0, Total=2550 [2021-11-21 00:08:43,071 INFO L87 Difference]: Start difference. First operand 220 states and 256 transitions. Second operand has 29 states, 29 states have (on average 3.896551724137931) internal successors, (113), 29 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:44,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:44,830 INFO L93 Difference]: Finished difference Result 457 states and 509 transitions. [2021-11-21 00:08:44,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-21 00:08:44,831 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.896551724137931) internal successors, (113), 29 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-21 00:08:44,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:44,834 INFO L225 Difference]: With dead ends: 457 [2021-11-21 00:08:44,834 INFO L226 Difference]: Without dead ends: 457 [2021-11-21 00:08:44,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 76 SyntacticMatches, 11 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2198 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=576, Invalid=5123, Unknown=1, NotChecked=0, Total=5700 [2021-11-21 00:08:44,837 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 429 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 397 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:44,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 1291 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 898 Invalid, 0 Unknown, 397 Unchecked, 0.7s Time] [2021-11-21 00:08:44,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-21 00:08:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 268. [2021-11-21 00:08:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 244 states have (on average 1.2622950819672132) internal successors, (308), 267 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 308 transitions. [2021-11-21 00:08:44,847 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 308 transitions. Word has length 41 [2021-11-21 00:08:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:44,847 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 308 transitions. [2021-11-21 00:08:44,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.896551724137931) internal successors, (113), 29 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 308 transitions. [2021-11-21 00:08:44,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:08:44,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:44,848 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] [2021-11-21 00:08:44,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:08:45,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-21 00:08:45,064 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:08:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:45,064 INFO L85 PathProgramCache]: Analyzing trace with hash -537734687, now seen corresponding path program 1 times [2021-11-21 00:08:45,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:45,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492664830] [2021-11-21 00:08:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:45,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:08:45,107 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492664830] [2021-11-21 00:08:45,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492664830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:45,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:45,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:08:45,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533994945] [2021-11-21 00:08:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:45,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:08:45,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:08:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:45,112 INFO L87 Difference]: Start difference. First operand 268 states and 308 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:45,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:45,188 INFO L93 Difference]: Finished difference Result 268 states and 307 transitions. [2021-11-21 00:08:45,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:08:45,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-21 00:08:45,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:45,191 INFO L225 Difference]: With dead ends: 268 [2021-11-21 00:08:45,191 INFO L226 Difference]: Without dead ends: 268 [2021-11-21 00:08:45,193 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 [2021-11-21 00:08:45,193 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 69 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:45,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 102 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:08:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-21 00:08:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2021-11-21 00:08:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 243 states have (on average 1.2551440329218106) internal successors, (305), 265 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:45,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 305 transitions. [2021-11-21 00:08:45,201 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 305 transitions. Word has length 43 [2021-11-21 00:08:45,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:45,202 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 305 transitions. [2021-11-21 00:08:45,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:08:45,202 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 305 transitions. [2021-11-21 00:08:45,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:08:45,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:45,203 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] [2021-11-21 00:08:45,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-21 00:08:45,204 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:08:45,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:45,204 INFO L85 PathProgramCache]: Analyzing trace with hash -978753858, now seen corresponding path program 1 times [2021-11-21 00:08:45,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:45,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697729039] [2021-11-21 00:08:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:45,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:45,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:45,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697729039] [2021-11-21 00:08:45,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697729039] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:08:45,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320000876] [2021-11-21 00:08:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:45,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:45,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:45,388 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:45,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 00:08:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:45,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-21 00:08:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:45,476 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 [2021-11-21 00:08:45,623 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:08:45,624 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 [2021-11-21 00:08:45,677 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 21 treesize of output 17 [2021-11-21 00:08:45,777 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:08:45,777 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 36 treesize of output 27 [2021-11-21 00:08:45,999 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-21 00:08:45,999 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 50 treesize of output 39 [2021-11-21 00:08:46,445 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-21 00:08:46,445 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 60 treesize of output 36 [2021-11-21 00:08:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:46,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:08:51,847 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 788 treesize of output 772 [2021-11-21 00:08:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:59,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320000876] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:08:59,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [542637209] [2021-11-21 00:08:59,158 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2021-11-21 00:08:59,158 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:08:59,159 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:08:59,159 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:08:59,159 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:08:59,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,197 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 [2021-11-21 00:08:59,255 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 [2021-11-21 00:08:59,266 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 [2021-11-21 00:08:59,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,293 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 [2021-11-21 00:08:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,532 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 [2021-11-21 00:08:59,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,543 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 [2021-11-21 00:08:59,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:59,590 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 [2021-11-21 00:09:00,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,345 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 22 treesize of output 30 [2021-11-21 00:09:00,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-21 00:09:00,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,532 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 [2021-11-21 00:09:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,550 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 57 treesize of output 52 [2021-11-21 00:09:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,709 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 [2021-11-21 00:09:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,748 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:09:00,749 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 2 case distinctions, treesize of input 35 treesize of output 33 [2021-11-21 00:09:00,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:00,771 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:00,781 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-21 00:09:00,781 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 1 case distinctions, treesize of input 77 treesize of output 59 [2021-11-21 00:09:01,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,488 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 [2021-11-21 00:09:01,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2021-11-21 00:09:01,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:01,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:09:02,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,669 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 27 treesize of output 38 [2021-11-21 00:09:02,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:09:02,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,834 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 0 case distinctions, treesize of input 79 treesize of output 80 [2021-11-21 00:09:02,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:02,902 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 0 case distinctions, treesize of input 51 treesize of output 48 [2021-11-21 00:09:03,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:03,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:03,250 INFO L354 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2021-11-21 00:09:03,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 222 treesize of output 153 [2021-11-21 00:09:03,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:03,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:03,305 INFO L354 Elim1Store]: treesize reduction 150, result has 20.6 percent of original size [2021-11-21 00:09:03,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 178 treesize of output 178 [2021-11-21 00:09:03,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:03,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:03,399 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 [2021-11-21 00:09:04,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:04,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:04,802 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-11-21 00:09:04,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 426 treesize of output 394 [2021-11-21 00:09:04,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:04,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:04,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:04,873 INFO L354 Elim1Store]: treesize reduction 216, result has 17.9 percent of original size [2021-11-21 00:09:04,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 433 treesize of output 434 [2021-11-21 00:09:04,930 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:09:04,930 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 440 treesize of output 419 [2021-11-21 00:09:07,963 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 00:09:07,964 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 398 treesize of output 404 [2021-11-21 00:09:08,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:08,776 INFO L354 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2021-11-21 00:09:08,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 483 treesize of output 451 [2021-11-21 00:09:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,802 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:08,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:08,884 INFO L354 Elim1Store]: treesize reduction 242, result has 13.9 percent of original size [2021-11-21 00:09:08,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 515 treesize of output 504 [2021-11-21 00:09:08,936 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:09:08,937 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 503 treesize of output 486 [2021-11-21 00:09:10,655 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:10,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:10,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:10,922 INFO L354 Elim1Store]: treesize reduction 562, result has 10.9 percent of original size [2021-11-21 00:09:10,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 851 treesize of output 533 [2021-11-21 00:09:10,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:10,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:10,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:10,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:11,141 INFO L354 Elim1Store]: treesize reduction 578, result has 9.8 percent of original size [2021-11-21 00:09:11,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 810 treesize of output 667 [2021-11-21 00:09:11,173 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:09:11,174 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 799 treesize of output 782 [2021-11-21 00:09:13,841 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 [2021-11-21 00:09:13,855 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 [2021-11-21 00:09:13,865 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 [2021-11-21 00:09:14,162 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:09:14,162 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 [2021-11-21 00:09:14,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-21 00:09:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,218 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 [2021-11-21 00:09:14,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,238 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 [2021-11-21 00:09:14,261 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 15 treesize of output 1 [2021-11-21 00:09:14,418 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 [2021-11-21 00:09:14,448 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:14,448 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 118 treesize of output 100 [2021-11-21 00:09:14,471 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:14,471 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 89 treesize of output 87 [2021-11-21 00:09:15,084 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 [2021-11-21 00:09:15,094 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 [2021-11-21 00:09:15,113 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 [2021-11-21 00:09:17,067 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:09:17,067 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 [2021-11-21 00:09:17,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-21 00:09:17,183 INFO L354 Elim1Store]: treesize reduction 40, result has 43.7 percent of original size [2021-11-21 00:09:17,183 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 303 treesize of output 310 [2021-11-21 00:09:17,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:17,260 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:09:17,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 310 treesize of output 333 [2021-11-21 00:09:17,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:17,323 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:09:17,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 347 treesize of output 370 [2021-11-21 00:09:17,880 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 [2021-11-21 00:09:17,917 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:17,918 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 125 treesize of output 107 [2021-11-21 00:09:17,957 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:17,958 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 121 treesize of output 115 [2021-11-21 00:09:18,477 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:09:20,805 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:09:20,806 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:09:20,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 27 [2021-11-21 00:09:20,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764934236] [2021-11-21 00:09:20,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:09:20,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-21 00:09:20,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:09:20,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-21 00:09:20,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2289, Unknown=4, NotChecked=0, Total=2550 [2021-11-21 00:09:20,810 INFO L87 Difference]: Start difference. First operand 266 states and 305 transitions. Second operand has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:21,359 INFO L93 Difference]: Finished difference Result 324 states and 367 transitions. [2021-11-21 00:09:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 00:09:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-21 00:09:21,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:21,362 INFO L225 Difference]: With dead ends: 324 [2021-11-21 00:09:21,362 INFO L226 Difference]: Without dead ends: 324 [2021-11-21 00:09:21,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=281, Invalid=2471, Unknown=4, NotChecked=0, Total=2756 [2021-11-21 00:09:21,364 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 188 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 670 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:21,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1009 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 747 Invalid, 0 Unknown, 670 Unchecked, 0.5s Time] [2021-11-21 00:09:21,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-11-21 00:09:21,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 294. [2021-11-21 00:09:21,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 271 states have (on average 1.2472324723247232) internal successors, (338), 293 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 338 transitions. [2021-11-21 00:09:21,373 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 338 transitions. Word has length 43 [2021-11-21 00:09:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:09:21,374 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 338 transitions. [2021-11-21 00:09:21,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.703703703703703) internal successors, (127), 28 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 338 transitions. [2021-11-21 00:09:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:09:21,375 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:09:21,375 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] [2021-11-21 00:09:21,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:09:21,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:09:21,600 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:09:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:09:21,600 INFO L85 PathProgramCache]: Analyzing trace with hash -978753857, now seen corresponding path program 1 times [2021-11-21 00:09:21,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:09:21,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759518299] [2021-11-21 00:09:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:21,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:09:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:09:21,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:09:21,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759518299] [2021-11-21 00:09:21,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759518299] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:09:21,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95996704] [2021-11-21 00:09:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:21,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:09:21,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:09:21,840 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:09:21,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 00:09:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:21,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-21 00:09:21,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:09:21,928 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 [2021-11-21 00:09:22,064 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 [2021-11-21 00:09:22,074 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:09:22,075 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 [2021-11-21 00:09:22,115 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 [2021-11-21 00:09:22,122 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 [2021-11-21 00:09:22,222 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:09:22,222 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 18 [2021-11-21 00:09:22,244 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:09:22,245 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 36 treesize of output 27 [2021-11-21 00:09:22,503 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-21 00:09:22,503 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 [2021-11-21 00:09:22,526 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-21 00:09:22,526 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 [2021-11-21 00:09:23,017 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-21 00:09:23,017 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 [2021-11-21 00:09:23,029 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-21 00:09:23,029 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 [2021-11-21 00:09:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:09:23,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:09:29,413 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 1320 treesize of output 1296 [2021-11-21 00:09:29,451 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 6601 treesize of output 6473 [2021-11-21 00:09:29,507 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:09:29,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [467068451] [2021-11-21 00:09:29,510 INFO L159 IcfgInterpreter]: Started Sifa with 40 locations of interest [2021-11-21 00:09:29,510 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:09:29,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:09:29,511 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:09:29,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:09:29,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:29,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:29,540 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 [2021-11-21 00:09:29,610 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 [2021-11-21 00:09:29,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:29,660 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 [2021-11-21 00:09:29,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-21 00:09:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,018 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 [2021-11-21 00:09:30,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,034 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 [2021-11-21 00:09:30,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,102 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 [2021-11-21 00:09:30,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,841 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 22 treesize of output 30 [2021-11-21 00:09:30,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2021-11-21 00:09:30,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:30,942 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 [2021-11-21 00:09:31,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:31,016 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 28 treesize of output 23 [2021-11-21 00:09:31,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:31,200 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:09:31,200 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 2 case distinctions, treesize of input 77 treesize of output 59 [2021-11-21 00:09:31,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:31,264 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 [2021-11-21 00:09:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:31,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:31,303 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 35 treesize of output 33 [2021-11-21 00:09:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2021-11-21 00:09:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:09:32,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:32,323 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 [2021-11-21 00:09:33,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,385 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 27 treesize of output 38 [2021-11-21 00:09:33,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:09:33,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,534 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 0 case distinctions, treesize of input 44 treesize of output 45 [2021-11-21 00:09:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,596 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 0 case distinctions, treesize of input 79 treesize of output 80 [2021-11-21 00:09:33,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:33,949 INFO L354 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2021-11-21 00:09:33,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 222 treesize of output 153 [2021-11-21 00:09:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:33,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:34,000 INFO L354 Elim1Store]: treesize reduction 150, result has 20.6 percent of original size [2021-11-21 00:09:34,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 218 treesize of output 218 [2021-11-21 00:09:34,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:34,122 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 [2021-11-21 00:09:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:35,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:35,666 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:35,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:35,754 INFO L354 Elim1Store]: treesize reduction 180, result has 16.3 percent of original size [2021-11-21 00:09:35,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 454 treesize of output 386 [2021-11-21 00:09:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:35,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:35,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:35,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:35,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:35,861 INFO L354 Elim1Store]: treesize reduction 216, result has 17.9 percent of original size [2021-11-21 00:09:35,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 461 treesize of output 454 [2021-11-21 00:09:35,909 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:09:35,909 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 468 treesize of output 447 [2021-11-21 00:09:39,217 INFO L354 Elim1Store]: treesize reduction 294, result has 12.2 percent of original size [2021-11-21 00:09:39,218 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 426 treesize of output 435 [2021-11-21 00:09:40,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:40,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:40,231 INFO L354 Elim1Store]: treesize reduction 186, result has 18.8 percent of original size [2021-11-21 00:09:40,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 523 treesize of output 443 [2021-11-21 00:09:40,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:40,251 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:40,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:40,376 INFO L354 Elim1Store]: treesize reduction 242, result has 13.9 percent of original size [2021-11-21 00:09:40,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 515 treesize of output 496 [2021-11-21 00:09:40,442 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:09:40,442 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 503 treesize of output 486 [2021-11-21 00:09:42,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:42,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:42,478 INFO L354 Elim1Store]: treesize reduction 566, result has 10.3 percent of original size [2021-11-21 00:09:42,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 839 treesize of output 517 [2021-11-21 00:09:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:42,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:42,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:42,494 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:42,681 INFO L354 Elim1Store]: treesize reduction 562, result has 12.3 percent of original size [2021-11-21 00:09:42,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 804 treesize of output 673 [2021-11-21 00:09:42,714 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:09:42,714 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 795 treesize of output 778 [2021-11-21 00:09:45,312 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 [2021-11-21 00:09:45,329 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 [2021-11-21 00:09:45,351 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 [2021-11-21 00:09:45,663 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:09:45,663 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 [2021-11-21 00:09:45,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-21 00:09:45,713 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 [2021-11-21 00:09:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:45,738 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 [2021-11-21 00:09:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:45,766 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 [2021-11-21 00:09:45,935 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 [2021-11-21 00:09:45,960 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:45,960 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 118 treesize of output 100 [2021-11-21 00:09:45,980 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:45,980 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 89 treesize of output 87 [2021-11-21 00:09:46,557 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 [2021-11-21 00:09:46,575 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 [2021-11-21 00:09:46,587 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 [2021-11-21 00:09:48,603 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:09:48,603 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 [2021-11-21 00:09:48,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-21 00:09:48,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:48,738 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:09:48,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 309 treesize of output 332 [2021-11-21 00:09:48,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:48,784 INFO L354 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2021-11-21 00:09:48,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 346 treesize of output 369 [2021-11-21 00:09:48,826 INFO L354 Elim1Store]: treesize reduction 40, result has 43.7 percent of original size [2021-11-21 00:09:48,826 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 399 treesize of output 406 [2021-11-21 00:09:49,331 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 [2021-11-21 00:09:49,369 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:49,370 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 125 treesize of output 119 [2021-11-21 00:09:49,391 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:09:49,391 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 110 treesize of output 92 [2021-11-21 00:09:49,798 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:09:51,751 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:09:51,751 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:09:51,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-11-21 00:09:51,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428840929] [2021-11-21 00:09:51,752 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 00:09:51,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 00:09:51,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:09:51,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 00:09:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=2048, Unknown=2, NotChecked=0, Total=2256 [2021-11-21 00:09:51,753 INFO L87 Difference]: Start difference. First operand 294 states and 338 transitions. Second operand has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:52,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:52,551 INFO L93 Difference]: Finished difference Result 441 states and 487 transitions. [2021-11-21 00:09:52,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 00:09:52,551 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-21 00:09:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:52,553 INFO L225 Difference]: With dead ends: 441 [2021-11-21 00:09:52,553 INFO L226 Difference]: Without dead ends: 441 [2021-11-21 00:09:52,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=278, Invalid=2912, Unknown=2, NotChecked=0, Total=3192 [2021-11-21 00:09:52,555 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 438 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:52,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 577 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:09:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-11-21 00:09:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 308. [2021-11-21 00:09:52,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 285 states have (on average 1.263157894736842) internal successors, (360), 307 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 360 transitions. [2021-11-21 00:09:52,565 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 360 transitions. Word has length 43 [2021-11-21 00:09:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:09:52,565 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 360 transitions. [2021-11-21 00:09:52,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 360 transitions. [2021-11-21 00:09:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 00:09:52,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:09:52,566 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] [2021-11-21 00:09:52,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-21 00:09:52,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:09:52,788 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:09:52,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:09:52,788 INFO L85 PathProgramCache]: Analyzing trace with hash 510098320, now seen corresponding path program 1 times [2021-11-21 00:09:52,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:09:52,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275402866] [2021-11-21 00:09:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:52,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:09:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:09:52,915 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:09:52,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275402866] [2021-11-21 00:09:52,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275402866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:09:52,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:09:52,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 00:09:52,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013350242] [2021-11-21 00:09:52,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:09:52,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:09:52,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:09:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:09:52,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:09:52,918 INFO L87 Difference]: Start difference. First operand 308 states and 360 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:53,248 INFO L93 Difference]: Finished difference Result 330 states and 381 transitions. [2021-11-21 00:09:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:09:53,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-21 00:09:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:53,250 INFO L225 Difference]: With dead ends: 330 [2021-11-21 00:09:53,250 INFO L226 Difference]: Without dead ends: 330 [2021-11-21 00:09:53,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-11-21 00:09:53,251 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 314 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:53,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 239 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:09:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-21 00:09:53,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 311. [2021-11-21 00:09:53,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 288 states have (on average 1.2638888888888888) internal successors, (364), 310 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 364 transitions. [2021-11-21 00:09:53,259 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 364 transitions. Word has length 44 [2021-11-21 00:09:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:09:53,259 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 364 transitions. [2021-11-21 00:09:53,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 364 transitions. [2021-11-21 00:09:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 00:09:53,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:09:53,260 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] [2021-11-21 00:09:53,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-21 00:09:53,261 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr64REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:09:53,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:09:53,261 INFO L85 PathProgramCache]: Analyzing trace with hash 510098321, now seen corresponding path program 1 times [2021-11-21 00:09:53,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:09:53,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567216912] [2021-11-21 00:09:53,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:53,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:09:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:09:53,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:09:53,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567216912] [2021-11-21 00:09:53,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567216912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:09:53,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:09:53,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 00:09:53,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997962384] [2021-11-21 00:09:53,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:09:53,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 00:09:53,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:09:53,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 00:09:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:09:53,413 INFO L87 Difference]: Start difference. First operand 311 states and 364 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:09:53,766 INFO L93 Difference]: Finished difference Result 331 states and 382 transitions. [2021-11-21 00:09:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 00:09:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-21 00:09:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:09:53,768 INFO L225 Difference]: With dead ends: 331 [2021-11-21 00:09:53,768 INFO L226 Difference]: Without dead ends: 331 [2021-11-21 00:09:53,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:09:53,769 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 229 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:09:53,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 259 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:09:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2021-11-21 00:09:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 317. [2021-11-21 00:09:53,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 294 states have (on average 1.2619047619047619) internal successors, (371), 316 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 371 transitions. [2021-11-21 00:09:53,777 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 371 transitions. Word has length 44 [2021-11-21 00:09:53,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:09:53,777 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 371 transitions. [2021-11-21 00:09:53,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:09:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 371 transitions. [2021-11-21 00:09:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 00:09:53,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:09:53,779 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] [2021-11-21 00:09:53,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-21 00:09:53,779 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:09:53,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:09:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash -907190750, now seen corresponding path program 1 times [2021-11-21 00:09:53,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:09:53,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202215213] [2021-11-21 00:09:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:53,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:09:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:09:54,068 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:09:54,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202215213] [2021-11-21 00:09:54,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202215213] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:09:54,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196912648] [2021-11-21 00:09:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:09:54,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:09:54,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:09:54,069 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:09:54,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-21 00:09:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:09:54,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-21 00:09:54,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:09:54,143 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 [2021-11-21 00:09:54,178 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:09:54,178 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 [2021-11-21 00:09:54,210 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 [2021-11-21 00:09:54,265 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:09:54,265 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 [2021-11-21 00:09:54,376 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-21 00:09:54,377 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 [2021-11-21 00:09:58,633 INFO L354 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2021-11-21 00:09:58,633 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 [2021-11-21 00:09:58,772 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-21 00:09:58,773 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 [2021-11-21 00:09:59,122 INFO L354 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2021-11-21 00:09:59,122 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 77 treesize of output 70 [2021-11-21 00:10:02,315 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-21 00:10:02,316 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 [2021-11-21 00:10:04,871 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-21 00:10:04,871 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 [2021-11-21 00:10:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:10:07,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:10:20,606 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|v_ULTIMATE.start_main_~end~0#1.offset_167| Int)) (= (select |c_#valid| (select (select (let ((.cse0 (store |c_#memory_$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 .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_167| 0) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_167|) 0))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) 1)) is different from false [2021-11-21 00:10:52,182 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:10:52,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1878569337] [2021-11-21 00:10:52,185 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 00:10:52,185 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:10:52,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:10:52,186 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:10:52,186 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:10:52,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,212 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 [2021-11-21 00:10:52,282 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 [2021-11-21 00:10:52,294 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 [2021-11-21 00:10:52,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,301 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 [2021-11-21 00:10:52,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,496 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 22 treesize of output 30 [2021-11-21 00:10:52,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,566 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 50 treesize of output 49 [2021-11-21 00:10:52,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,593 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 [2021-11-21 00:10:52,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,635 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 [2021-11-21 00:10:52,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,808 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:10:52,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 157 [2021-11-21 00:10:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:52,839 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:10:52,840 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 220 treesize of output 189 [2021-11-21 00:10:52,856 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-21 00:10:52,856 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 167 treesize of output 140 [2021-11-21 00:10:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:53,135 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-21 00:10:53,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 264 treesize of output 182 [2021-11-21 00:10:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:53,187 INFO L354 Elim1Store]: treesize reduction 114, result has 20.8 percent of original size [2021-11-21 00:10:53,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 254 treesize of output 226 [2021-11-21 00:10:53,193 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 193 treesize of output 166 [2021-11-21 00:10:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,085 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 33 treesize of output 44 [2021-11-21 00:10:54,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,242 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 [2021-11-21 00:10:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:54,288 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-21 00:10:54,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 139 [2021-11-21 00:10:54,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:54,312 INFO L354 Elim1Store]: treesize reduction 63, result has 17.1 percent of original size [2021-11-21 00:10:54,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 192 [2021-11-21 00:10:54,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,656 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 [2021-11-21 00:10:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:54,777 INFO L354 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2021-11-21 00:10:54,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 216 treesize of output 153 [2021-11-21 00:10:54,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:54,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:54,823 INFO L354 Elim1Store]: treesize reduction 166, result has 20.6 percent of original size [2021-11-21 00:10:54,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 212 treesize of output 216 [2021-11-21 00:10:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:55,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:55,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:55,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:55,964 INFO L354 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2021-11-21 00:10:55,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 219 treesize of output 163 [2021-11-21 00:10:55,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:55,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:55,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:55,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:56,002 INFO L354 Elim1Store]: treesize reduction 102, result has 18.4 percent of original size [2021-11-21 00:10:56,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 215 treesize of output 226 [2021-11-21 00:10:56,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:56,168 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 [2021-11-21 00:10:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 18 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 56 [2021-11-21 00:10:57,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:57,874 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:57,908 INFO L354 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2021-11-21 00:10:57,908 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 272 treesize of output 202 [2021-11-21 00:10:57,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:57,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:57,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:57,953 INFO L354 Elim1Store]: treesize reduction 122, result has 14.7 percent of original size [2021-11-21 00:10:57,953 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 6 new quantified variables, introduced 15 case distinctions, treesize of input 254 treesize of output 261 [2021-11-21 00:10:58,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:58,110 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 [2021-11-21 00:10:58,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:58,343 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 [2021-11-21 00:10:58,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:58,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:58,459 INFO L354 Elim1Store]: treesize reduction 354, result has 13.4 percent of original size [2021-11-21 00:10:58,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 380 treesize of output 240 [2021-11-21 00:10:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:10:58,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:10:58,569 INFO L354 Elim1Store]: treesize reduction 402, result has 13.9 percent of original size [2021-11-21 00:10:58,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 376 treesize of output 348 [2021-11-21 00:11:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:00,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:00,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:01,023 INFO L354 Elim1Store]: treesize reduction 458, result has 11.4 percent of original size [2021-11-21 00:11:01,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 725 treesize of output 516 [2021-11-21 00:11:01,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:01,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:01,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:01,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:01,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:01,188 INFO L354 Elim1Store]: treesize reduction 512, result has 12.5 percent of original size [2021-11-21 00:11:01,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 732 treesize of output 697 [2021-11-21 00:11:01,225 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:11:01,225 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 739 treesize of output 718 [2021-11-21 00:11:05,596 INFO L354 Elim1Store]: treesize reduction 372, result has 12.5 percent of original size [2021-11-21 00:11:05,596 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 697 treesize of output 694 [2021-11-21 00:11:06,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:06,573 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:06,774 INFO L354 Elim1Store]: treesize reduction 494, result has 11.9 percent of original size [2021-11-21 00:11:06,774 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 33 case distinctions, treesize of input 816 treesize of output 579 [2021-11-21 00:11:06,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:06,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:06,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:07,005 INFO L354 Elim1Store]: treesize reduction 568, result has 10.3 percent of original size [2021-11-21 00:11:07,006 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 33 case distinctions, treesize of input 788 treesize of output 757 [2021-11-21 00:11:07,051 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:11:07,052 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 776 treesize of output 759 [2021-11-21 00:11:09,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:09,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:09,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:10,019 INFO L354 Elim1Store]: treesize reduction 654, result has 10.8 percent of original size [2021-11-21 00:11:10,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1040 treesize of output 607 [2021-11-21 00:11:10,033 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:10,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:11:10,341 INFO L354 Elim1Store]: treesize reduction 878, result has 11.4 percent of original size [2021-11-21 00:11:10,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 927 treesize of output 893 [2021-11-21 00:11:10,411 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:11:10,411 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 940 treesize of output 923 [2021-11-21 00:11:14,214 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 [2021-11-21 00:11:14,221 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 [2021-11-21 00:11:14,250 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 [2021-11-21 00:11:14,578 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 00:11:14,578 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 [2021-11-21 00:11:14,610 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:11:14,611 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 [2021-11-21 00:11:14,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:14,635 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 [2021-11-21 00:11:14,659 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 [2021-11-21 00:11:14,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:11:14,666 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 [2021-11-21 00:11:14,854 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 [2021-11-21 00:11:14,893 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:11:14,894 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 118 treesize of output 116 [2021-11-21 00:11:14,925 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:11:14,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 92 [2021-11-21 00:11:15,650 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 [2021-11-21 00:11:15,667 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 [2021-11-21 00:11:15,675 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 [2021-11-21 00:11:16,793 INFO L354 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2021-11-21 00:11:16,794 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 240 treesize of output 334 [2021-11-21 00:11:18,400 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:11:18,400 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 [2021-11-21 00:11:18,668 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 [2021-11-21 00:11:18,679 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 [2021-11-21 00:11:18,686 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 [2021-11-21 00:11:18,808 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:11:18,809 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 66 [2021-11-21 00:11:18,821 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:11:18,822 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 63 treesize of output 58 [2021-11-21 00:11:18,987 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 [2021-11-21 00:11:19,711 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:11:25,293 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:11:25,293 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:11:25,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-21 00:11:25,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483471136] [2021-11-21 00:11:25,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 00:11:25,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 00:11:25,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:11:25,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 00:11:25,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=515, Invalid=4155, Unknown=26, NotChecked=134, Total=4830 [2021-11-21 00:11:25,296 INFO L87 Difference]: Start difference. First operand 317 states and 371 transitions. Second operand has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-11-21 00:11:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:11:32,571 INFO L93 Difference]: Finished difference Result 458 states and 512 transitions. [2021-11-21 00:11:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-21 00:11:32,571 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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 [2021-11-21 00:11:32,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:11:32,573 INFO L225 Difference]: With dead ends: 458 [2021-11-21 00:11:32,573 INFO L226 Difference]: Without dead ends: 458 [2021-11-21 00:11:32,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 69 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2494 ImplicationChecksByTransitivity, 65.1s TimeCoverageRelationStatistics Valid=713, Invalid=5742, Unknown=29, NotChecked=158, Total=6642 [2021-11-21 00:11:32,575 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 696 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:11:32,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 666 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:11:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-21 00:11:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 371. [2021-11-21 00:11:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 348 states have (on average 1.3074712643678161) internal successors, (455), 370 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:11:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 455 transitions. [2021-11-21 00:11:32,585 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 455 transitions. Word has length 44 [2021-11-21 00:11:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:11:32,585 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 455 transitions. [2021-11-21 00:11:32,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-11-21 00:11:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 455 transitions. [2021-11-21 00:11:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 00:11:32,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:11:32,587 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] [2021-11-21 00:11:32,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:11:32,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-21 00:11:32,808 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:11:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:11:32,808 INFO L85 PathProgramCache]: Analyzing trace with hash -907190749, now seen corresponding path program 1 times [2021-11-21 00:11:32,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:11:32,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025341743] [2021-11-21 00:11:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:11:32,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:11:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:11:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:11:33,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:11:33,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025341743] [2021-11-21 00:11:33,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025341743] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:11:33,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275878548] [2021-11-21 00:11:33,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:11:33,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:11:33,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:11:33,253 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:11:33,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-21 00:11:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:11:33,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-21 00:11:33,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:11:33,339 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 [2021-11-21 00:11:33,371 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 [2021-11-21 00:11:33,392 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:11:33,393 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 [2021-11-21 00:11:33,473 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 [2021-11-21 00:11:33,484 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 [2021-11-21 00:11:33,644 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:11:33,645 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 [2021-11-21 00:11:33,661 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-21 00:11:33,662 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 [2021-11-21 00:11:33,910 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-21 00:11:33,910 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 [2021-11-21 00:11:33,941 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-11-21 00:11:33,941 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 [2021-11-21 00:11:38,305 INFO L354 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2021-11-21 00:11:38,305 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 18 treesize of output 20 [2021-11-21 00:11:38,339 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-21 00:11:38,339 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 [2021-11-21 00:11:38,432 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-21 00:11:38,432 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 [2021-11-21 00:11:38,451 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-21 00:11:38,452 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 [2021-11-21 00:11:38,916 INFO L354 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2021-11-21 00:11:38,916 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 113 treesize of output 106 [2021-11-21 00:11:38,949 INFO L354 Elim1Store]: treesize reduction 124, result has 17.3 percent of original size [2021-11-21 00:11:38,949 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 97 treesize of output 102 [2021-11-21 00:11:40,671 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-21 00:11:40,671 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 [2021-11-21 00:11:40,714 INFO L354 Elim1Store]: treesize reduction 236, result has 13.6 percent of original size [2021-11-21 00:11:40,715 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 [2021-11-21 00:11:45,253 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-21 00:11:45,253 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 [2021-11-21 00:11:45,272 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-21 00:11:45,272 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 [2021-11-21 00:11:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:11:45,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:11:56,126 WARN L227 SmtUtils]: Spent 6.02s 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) [2021-11-21 00:11:58,140 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_4 Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ 4 v_subst_4)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 (store (store (select |c_#memory_$Pointer$.offset| .cse0) v_subst_4 0) .cse1 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 (store (store (select |c_#memory_$Pointer$.base| .cse0) v_subst_4 0) .cse1 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) (forall ((v_subst_3 Int)) (<= 0 (+ (select (select (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_$Pointer$.offset| .cse3 (store (store (select |c_#memory_$Pointer$.offset| .cse3) v_subst_3 0) (+ 4 v_subst_3) 0))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 4)))) is different from false [2021-11-21 00:12:00,164 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_subst_4 Int)) (let ((.cse1 (+ 4 v_subst_4)) (.cse2 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_4 0) .cse1 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2) 8) (select |c_#length| (select (select (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse3 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse3 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_4 0) .cse1 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse2))))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_subst_3 Int)) (<= 0 (+ (select (select (let ((.cse4 (store |c_#memory_$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 (store (select .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_3 0) (+ 4 v_subst_3) 0))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) 4)))) is different from false [2021-11-21 00:13:40,311 WARN L227 SmtUtils]: Spent 56.52s on a formula simplification. DAG size of input: 575 DAG size of output: 574 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-21 00:13:40,326 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:13:40,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2078562629] [2021-11-21 00:13:40,328 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 00:13:40,328 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:13:40,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:13:40,329 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:13:40,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:13:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,354 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 [2021-11-21 00:13:40,419 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 [2021-11-21 00:13:40,450 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 [2021-11-21 00:13:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,478 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 [2021-11-21 00:13:40,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,712 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 22 treesize of output 30 [2021-11-21 00:13:40,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,804 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 [2021-11-21 00:13:40,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,830 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 [2021-11-21 00:13:40,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,842 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 50 treesize of output 49 [2021-11-21 00:13:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:40,989 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:13:40,989 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 157 [2021-11-21 00:13:40,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:41,013 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:13:41,013 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 220 treesize of output 189 [2021-11-21 00:13:41,026 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-21 00:13:41,027 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 167 treesize of output 140 [2021-11-21 00:13:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:41,235 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-21 00:13:41,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 264 treesize of output 182 [2021-11-21 00:13:41,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:41,268 INFO L354 Elim1Store]: treesize reduction 114, result has 20.8 percent of original size [2021-11-21 00:13:41,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 254 treesize of output 226 [2021-11-21 00:13:41,297 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-21 00:13:41,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 244 treesize of output 201 [2021-11-21 00:13:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,224 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 33 treesize of output 44 [2021-11-21 00:13:42,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,443 INFO L354 Elim1Store]: treesize reduction 130, result has 15.0 percent of original size [2021-11-21 00:13:42,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 205 treesize of output 155 [2021-11-21 00:13:42,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,475 INFO L354 Elim1Store]: treesize reduction 136, result has 16.6 percent of original size [2021-11-21 00:13:42,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 207 treesize of output 199 [2021-11-21 00:13:42,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,600 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 [2021-11-21 00:13:42,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,770 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 [2021-11-21 00:13:42,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:42,825 INFO L354 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2021-11-21 00:13:42,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 216 treesize of output 153 [2021-11-21 00:13:42,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:42,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:42,875 INFO L354 Elim1Store]: treesize reduction 166, result has 20.6 percent of original size [2021-11-21 00:13:42,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 212 treesize of output 216 [2021-11-21 00:13:44,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:44,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:44,148 INFO L354 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2021-11-21 00:13:44,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 219 treesize of output 163 [2021-11-21 00:13:44,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:44,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:44,186 INFO L354 Elim1Store]: treesize reduction 102, result has 18.4 percent of original size [2021-11-21 00:13:44,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 199 treesize of output 210 [2021-11-21 00:13:44,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:44,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:13:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:45,783 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 38 treesize of output 52 [2021-11-21 00:13:46,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,057 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,102 INFO L354 Elim1Store]: treesize reduction 80, result has 15.8 percent of original size [2021-11-21 00:13:46,103 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 244 treesize of output 194 [2021-11-21 00:13:46,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,147 INFO L354 Elim1Store]: treesize reduction 122, result has 14.7 percent of original size [2021-11-21 00:13:46,147 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 6 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 253 [2021-11-21 00:13:46,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,299 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 [2021-11-21 00:13:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,770 INFO L354 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2021-11-21 00:13:46,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 336 treesize of output 216 [2021-11-21 00:13:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:46,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:46,878 INFO L354 Elim1Store]: treesize reduction 298, result has 17.9 percent of original size [2021-11-21 00:13:46,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 332 treesize of output 338 [2021-11-21 00:13:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:47,081 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 [2021-11-21 00:13:49,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,464 INFO L354 Elim1Store]: treesize reduction 118, result has 19.2 percent of original size [2021-11-21 00:13:49,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 677 treesize of output 484 [2021-11-21 00:13:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,479 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,480 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:49,552 INFO L354 Elim1Store]: treesize reduction 194, result has 17.8 percent of original size [2021-11-21 00:13:49,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 684 treesize of output 675 [2021-11-21 00:13:49,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:49,564 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 691 treesize of output 670 [2021-11-21 00:13:54,699 INFO L354 Elim1Store]: treesize reduction 340, result has 12.6 percent of original size [2021-11-21 00:13:54,699 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 649 treesize of output 646 [2021-11-21 00:13:56,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,023 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,024 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,129 INFO L354 Elim1Store]: treesize reduction 132, result has 20.5 percent of original size [2021-11-21 00:13:56,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 30 case distinctions, treesize of input 764 treesize of output 547 [2021-11-21 00:13:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:56,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,243 INFO L354 Elim1Store]: treesize reduction 234, result has 12.0 percent of original size [2021-11-21 00:13:56,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 756 treesize of output 735 [2021-11-21 00:13:56,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:56,276 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-21 00:13:56,276 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 744 treesize of output 727 [2021-11-21 00:13:59,657 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:13:59,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:13:59,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:14:00,046 INFO L354 Elim1Store]: treesize reduction 674, result has 10.3 percent of original size [2021-11-21 00:14:00,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 968 treesize of output 599 [2021-11-21 00:14:00,060 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:14:00,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:00,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:00,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:14:00,439 INFO L354 Elim1Store]: treesize reduction 1092, result has 9.5 percent of original size [2021-11-21 00:14:00,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 919 treesize of output 889 [2021-11-21 00:14:00,495 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:14:00,495 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 916 treesize of output 899 [2021-11-21 00:14:08,400 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 [2021-11-21 00:14:08,409 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 [2021-11-21 00:14:08,432 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 [2021-11-21 00:14:08,727 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 00:14:08,727 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 [2021-11-21 00:14:08,785 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:14:08,786 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 [2021-11-21 00:14:08,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:08,828 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 [2021-11-21 00:14:08,881 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 [2021-11-21 00:14:08,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:08,888 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 [2021-11-21 00:14:09,050 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:14:09,051 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 118 treesize of output 116 [2021-11-21 00:14:09,088 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:14:09,088 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 110 treesize of output 92 [2021-11-21 00:14:09,184 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 [2021-11-21 00:14:09,627 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 [2021-11-21 00:14:09,634 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 19 treesize of output 1 [2021-11-21 00:14:09,640 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 [2021-11-21 00:14:10,588 INFO L354 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2021-11-21 00:14:10,589 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 280 treesize of output 374 [2021-11-21 00:14:12,668 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:14:12,668 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 [2021-11-21 00:14:13,200 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 [2021-11-21 00:14:13,215 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 [2021-11-21 00:14:13,222 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 [2021-11-21 00:14:13,301 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 [2021-11-21 00:14:13,319 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:14:13,319 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 59 treesize of output 54 [2021-11-21 00:14:13,347 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:14:13,348 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 51 treesize of output 58 [2021-11-21 00:14:13,567 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:14:22,297 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:14:22,297 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:14:22,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-21 00:14:22,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012464759] [2021-11-21 00:14:22,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 00:14:22,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 00:14:22,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:22,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 00:14:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=4347, Unknown=22, NotChecked=274, Total=5112 [2021-11-21 00:14:22,300 INFO L87 Difference]: Start difference. First operand 371 states and 455 transitions. Second operand has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-11-21 00:14:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:25,809 INFO L93 Difference]: Finished difference Result 504 states and 560 transitions. [2021-11-21 00:14:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 00:14:25,810 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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 [2021-11-21 00:14:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:25,812 INFO L225 Difference]: With dead ends: 504 [2021-11-21 00:14:25,812 INFO L226 Difference]: Without dead ends: 504 [2021-11-21 00:14:25,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2280 ImplicationChecksByTransitivity, 73.4s TimeCoverageRelationStatistics Valid=641, Invalid=5825, Unknown=22, NotChecked=318, Total=6806 [2021-11-21 00:14:25,814 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 526 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:25,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 864 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 00:14:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-11-21 00:14:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 374. [2021-11-21 00:14:25,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 351 states have (on average 1.3048433048433048) internal successors, (458), 373 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:25,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 458 transitions. [2021-11-21 00:14:25,825 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 458 transitions. Word has length 44 [2021-11-21 00:14:25,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:25,825 INFO L470 AbstractCegarLoop]: Abstraction has 374 states and 458 transitions. [2021-11-21 00:14:25,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-11-21 00:14:25,826 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 458 transitions. [2021-11-21 00:14:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 00:14:25,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:25,827 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] [2021-11-21 00:14:25,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:26,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-21 00:14:26,052 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:14:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash -654269091, now seen corresponding path program 1 times [2021-11-21 00:14:26,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:26,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549319343] [2021-11-21 00:14:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:26,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:26,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:26,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549319343] [2021-11-21 00:14:26,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549319343] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:14:26,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656485455] [2021-11-21 00:14:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:26,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:26,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:26,712 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:26,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-21 00:14:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:26,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-21 00:14:26,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:26,804 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 [2021-11-21 00:14:26,839 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 [2021-11-21 00:14:26,845 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 [2021-11-21 00:14:27,000 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:14:27,000 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 [2021-11-21 00:14:27,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:27,070 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 [2021-11-21 00:14:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:27,077 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 30 treesize of output 29 [2021-11-21 00:14:27,230 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:14:27,230 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 48 treesize of output 42 [2021-11-21 00:14:27,246 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 [2021-11-21 00:14:27,580 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-21 00:14:27,581 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 16 treesize of output 18 [2021-11-21 00:14:27,677 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-21 00:14:27,677 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 30 treesize of output 32 [2021-11-21 00:14:27,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:27,687 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-21 00:14:27,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 53 [2021-11-21 00:14:27,892 INFO L354 Elim1Store]: treesize reduction 128, result has 20.5 percent of original size [2021-11-21 00:14:27,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 109 treesize of output 90 [2021-11-21 00:14:27,924 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:14:27,924 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 99 treesize of output 95 [2021-11-21 00:14:28,246 INFO L354 Elim1Store]: treesize reduction 272, result has 12.8 percent of original size [2021-11-21 00:14:28,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 184 treesize of output 115 [2021-11-21 00:14:28,280 INFO L354 Elim1Store]: treesize reduction 212, result has 15.2 percent of original size [2021-11-21 00:14:28,280 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 170 treesize of output 165 [2021-11-21 00:14:35,342 INFO L354 Elim1Store]: treesize reduction 188, result has 0.5 percent of original size [2021-11-21 00:14:35,343 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 8 new quantified variables, introduced 15 case distinctions, treesize of input 166 treesize of output 74 [2021-11-21 00:14:35,351 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-21 00:14:35,351 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 53 treesize of output 31 [2021-11-21 00:14:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:35,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:59,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:59,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656485455] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:14:59,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [162627134] [2021-11-21 00:14:59,122 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 00:14:59,123 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:14:59,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:14:59,123 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:14:59,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:14:59,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,161 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 [2021-11-21 00:14:59,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,218 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 [2021-11-21 00:14:59,230 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 [2021-11-21 00:14:59,237 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 [2021-11-21 00:14:59,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,506 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 [2021-11-21 00:14:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,538 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 [2021-11-21 00:14:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,553 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 [2021-11-21 00:15:00,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,421 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 22 treesize of output 30 [2021-11-21 00:15:00,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,524 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 57 treesize of output 52 [2021-11-21 00:15:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,586 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 28 treesize of output 23 [2021-11-21 00:15:00,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,605 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 [2021-11-21 00:15:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,812 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:15:00,813 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 2 case distinctions, treesize of input 77 treesize of output 59 [2021-11-21 00:15:00,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,920 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 35 treesize of output 33 [2021-11-21 00:15:00,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:00,955 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 [2021-11-21 00:15:01,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 00:15:01,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,869 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 [2021-11-21 00:15:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,913 INFO L354 Elim1Store]: treesize reduction 88, result has 16.2 percent of original size [2021-11-21 00:15:01,914 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 4 case distinctions, treesize of input 108 treesize of output 93 [2021-11-21 00:15:01,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2021-11-21 00:15:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,271 INFO L354 Elim1Store]: treesize reduction 222, result has 12.9 percent of original size [2021-11-21 00:15:02,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 311 treesize of output 224 [2021-11-21 00:15:02,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,324 INFO L354 Elim1Store]: treesize reduction 222, result has 12.9 percent of original size [2021-11-21 00:15:02,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 281 treesize of output 252 [2021-11-21 00:15:02,354 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-21 00:15:02,354 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 267 treesize of output 228 [2021-11-21 00:15:02,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,870 INFO L354 Elim1Store]: treesize reduction 298, result has 13.4 percent of original size [2021-11-21 00:15:02,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 314 treesize of output 238 [2021-11-21 00:15:02,902 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-21 00:15:02,902 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 304 treesize of output 261 [2021-11-21 00:15:02,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,967 INFO L354 Elim1Store]: treesize reduction 254, result has 15.3 percent of original size [2021-11-21 00:15:02,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 255 treesize of output 236 [2021-11-21 00:15:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,356 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 38 treesize of output 52 [2021-11-21 00:15:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,534 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 30 treesize of output 21 [2021-11-21 00:15:04,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,618 INFO L354 Elim1Store]: treesize reduction 272, result has 9.6 percent of original size [2021-11-21 00:15:04,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 258 treesize of output 214 [2021-11-21 00:15:04,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,665 INFO L354 Elim1Store]: treesize reduction 244, result has 10.0 percent of original size [2021-11-21 00:15:04,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 260 treesize of output 249 [2021-11-21 00:15:05,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:05,025 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 [2021-11-21 00:15:05,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:05,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:15:05,150 INFO L354 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2021-11-21 00:15:05,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 352 treesize of output 216 [2021-11-21 00:15:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:05,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:15:05,248 INFO L354 Elim1Store]: treesize reduction 318, result has 17.8 percent of original size [2021-11-21 00:15:05,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 348 treesize of output 354 [2021-11-21 00:15:07,083 INFO L354 Elim1Store]: treesize reduction 344, result has 15.5 percent of original size [2021-11-21 00:15:07,083 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 582 treesize of output 599 [2021-11-21 00:15:08,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:09,191 INFO L354 Elim1Store]: treesize reduction 362, result has 14.4 percent of original size [2021-11-21 00:15:09,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 680 treesize of output 521 [2021-11-21 00:15:09,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:09,408 INFO L354 Elim1Store]: treesize reduction 410, result has 15.8 percent of original size [2021-11-21 00:15:09,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 659 treesize of output 682 [2021-11-21 00:15:09,472 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:15:09,472 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 685 treesize of output 664 [2021-11-21 00:15:13,617 INFO L354 Elim1Store]: treesize reduction 596, result has 9.8 percent of original size [2021-11-21 00:15:13,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 819 treesize of output 564 [2021-11-21 00:15:13,879 INFO L354 Elim1Store]: treesize reduction 774, result has 11.7 percent of original size [2021-11-21 00:15:13,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 830 treesize of output 817 [2021-11-21 00:15:13,927 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-21 00:15:13,927 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 794 [2021-11-21 00:15:16,221 INFO L354 Elim1Store]: treesize reduction 826, result has 8.6 percent of original size [2021-11-21 00:15:16,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 865 treesize of output 601 [2021-11-21 00:15:16,572 INFO L354 Elim1Store]: treesize reduction 968, result has 10.7 percent of original size [2021-11-21 00:15:16,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 876 treesize of output 857 [2021-11-21 00:15:16,582 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 824 treesize of output 789 [2021-11-21 00:15:21,195 INFO L354 Elim1Store]: treesize reduction 492, result has 11.2 percent of original size [2021-11-21 00:15:21,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 675 treesize of output 683 [2021-11-21 00:15:22,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:22,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:23,000 INFO L354 Elim1Store]: treesize reduction 570, result has 11.1 percent of original size [2021-11-21 00:15:23,001 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 863 treesize of output 609 [2021-11-21 00:15:23,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:23,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:23,363 INFO L354 Elim1Store]: treesize reduction 888, result has 9.7 percent of original size [2021-11-21 00:15:23,363 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 52 case distinctions, treesize of input 847 treesize of output 848 [2021-11-21 00:15:23,435 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:15:23,435 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 835 treesize of output 818 [2021-11-21 00:15:27,701 INFO L354 Elim1Store]: treesize reduction 1222, result has 7.9 percent of original size [2021-11-21 00:15:27,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 19 new quantified variables, introduced 105 case distinctions, treesize of input 1286 treesize of output 701 [2021-11-21 00:15:28,221 INFO L354 Elim1Store]: treesize reduction 1508, result has 12.1 percent of original size [2021-11-21 00:15:28,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 1 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 78 case distinctions, treesize of input 1200 treesize of output 1220 [2021-11-21 00:15:28,264 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:15:28,265 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 1238 treesize of output 1221 [2021-11-21 00:15:36,009 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 [2021-11-21 00:15:36,020 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 [2021-11-21 00:15:36,061 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 [2021-11-21 00:15:36,068 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 [2021-11-21 00:15:36,092 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 31 treesize of output 27 [2021-11-21 00:15:36,204 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-21 00:15:36,204 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 173 treesize of output 125 [2021-11-21 00:15:36,222 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:15:36,222 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 122 treesize of output 88 [2021-11-21 00:15:36,228 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 75 treesize of output 60 [2021-11-21 00:15:36,492 INFO L354 Elim1Store]: treesize reduction 136, result has 21.8 percent of original size [2021-11-21 00:15:36,493 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 234 treesize of output 178 [2021-11-21 00:15:36,524 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-11-21 00:15:36,525 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 169 treesize of output 138 [2021-11-21 00:15:36,531 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 119 treesize of output 104 [2021-11-21 00:15:37,249 INFO L354 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2021-11-21 00:15:37,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2021-11-21 00:15:37,277 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-21 00:15:37,277 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 1 case distinctions, treesize of input 25 treesize of output 30 [2021-11-21 00:15:37,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:37,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:37,355 INFO L354 Elim1Store]: treesize reduction 62, result has 19.5 percent of original size [2021-11-21 00:15:37,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 156 treesize of output 116 [2021-11-21 00:15:37,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:37,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:37,385 INFO L354 Elim1Store]: treesize reduction 104, result has 20.6 percent of original size [2021-11-21 00:15:37,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 174 [2021-11-21 00:15:37,456 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 [2021-11-21 00:15:37,788 INFO L354 Elim1Store]: treesize reduction 164, result has 15.9 percent of original size [2021-11-21 00:15:37,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 216 treesize of output 155 [2021-11-21 00:15:37,842 INFO L354 Elim1Store]: treesize reduction 224, result has 16.1 percent of original size [2021-11-21 00:15:37,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 212 treesize of output 216 [2021-11-21 00:15:38,129 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 [2021-11-21 00:15:39,603 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 [2021-11-21 00:15:39,616 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 [2021-11-21 00:15:39,641 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 31 treesize of output 27 [2021-11-21 00:15:39,655 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 [2021-11-21 00:15:39,669 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 [2021-11-21 00:15:39,761 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-21 00:15:39,762 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 173 treesize of output 125 [2021-11-21 00:15:39,777 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:15:39,777 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 122 treesize of output 88 [2021-11-21 00:15:39,782 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 118 treesize of output 91 [2021-11-21 00:15:40,018 INFO L354 Elim1Store]: treesize reduction 184, result has 21.4 percent of original size [2021-11-21 00:15:40,018 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 258 treesize of output 202 [2021-11-21 00:15:40,049 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-11-21 00:15:40,049 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 141 [2021-11-21 00:15:40,055 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 189 treesize of output 158 [2021-11-21 00:15:41,604 INFO L354 Elim1Store]: treesize reduction 156, result has 27.8 percent of original size [2021-11-21 00:15:41,604 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 266 treesize of output 308 [2021-11-21 00:15:42,726 INFO L354 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2021-11-21 00:15:42,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2021-11-21 00:15:43,034 INFO L354 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2021-11-21 00:15:43,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2021-11-21 00:15:43,379 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 [2021-11-21 00:15:43,390 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 [2021-11-21 00:15:43,400 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 [2021-11-21 00:15:43,480 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 [2021-11-21 00:15:43,504 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:15:43,504 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 66 [2021-11-21 00:15:43,518 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:15:43,518 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 63 treesize of output 58 [2021-11-21 00:15:43,843 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:15:47,756 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:15:47,757 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 00:15:47,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 12] total 37 [2021-11-21 00:15:47,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136740576] [2021-11-21 00:15:47,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 00:15:47,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-21 00:15:47,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:15:47,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-21 00:15:47,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=4223, Unknown=4, NotChecked=0, Total=4692 [2021-11-21 00:15:47,760 INFO L87 Difference]: Start difference. First operand 374 states and 458 transitions. Second operand has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 37 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:56,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:15:56,478 INFO L93 Difference]: Finished difference Result 457 states and 548 transitions. [2021-11-21 00:15:56,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-21 00:15:56,478 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 37 states have internal predecessors, (110), 0 states have call successors, (0), 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 [2021-11-21 00:15:56,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:15:56,481 INFO L225 Difference]: With dead ends: 457 [2021-11-21 00:15:56,481 INFO L226 Difference]: Without dead ends: 457 [2021-11-21 00:15:56,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2074 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=540, Invalid=5004, Unknown=6, NotChecked=0, Total=5550 [2021-11-21 00:15:56,482 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 220 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 737 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:15:56,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 1240 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 390 Invalid, 0 Unknown, 737 Unchecked, 0.3s Time] [2021-11-21 00:15:56,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-11-21 00:15:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 392. [2021-11-21 00:15:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 369 states have (on average 1.2953929539295392) internal successors, (478), 391 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 478 transitions. [2021-11-21 00:15:56,492 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 478 transitions. Word has length 44 [2021-11-21 00:15:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:15:56,492 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 478 transitions. [2021-11-21 00:15:56,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.8947368421052633) internal successors, (110), 37 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:56,493 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 478 transitions. [2021-11-21 00:15:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:15:56,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:15:56,494 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, 1] [2021-11-21 00:15:56,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-21 00:15:56,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:15:56,720 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:15:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:15:56,720 INFO L85 PathProgramCache]: Analyzing trace with hash 578224848, now seen corresponding path program 1 times [2021-11-21 00:15:56,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:15:56,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748898501] [2021-11-21 00:15:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:56,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:15:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:15:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:15:57,053 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:15:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748898501] [2021-11-21 00:15:57,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748898501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:15:57,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:15:57,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-21 00:15:57,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111420230] [2021-11-21 00:15:57,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:15:57,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 00:15:57,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:15:57,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 00:15:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:15:57,055 INFO L87 Difference]: Start difference. First operand 392 states and 478 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:57,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:15:57,751 INFO L93 Difference]: Finished difference Result 416 states and 492 transitions. [2021-11-21 00:15:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-21 00:15:57,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-21 00:15:57,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:15:57,753 INFO L225 Difference]: With dead ends: 416 [2021-11-21 00:15:57,753 INFO L226 Difference]: Without dead ends: 416 [2021-11-21 00:15:57,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2021-11-21 00:15:57,754 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 335 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:15:57,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 476 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 00:15:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-11-21 00:15:57,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 392. [2021-11-21 00:15:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 369 states have (on average 1.2926829268292683) internal successors, (477), 391 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 477 transitions. [2021-11-21 00:15:57,762 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 477 transitions. Word has length 46 [2021-11-21 00:15:57,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:15:57,762 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 477 transitions. [2021-11-21 00:15:57,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:15:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 477 transitions. [2021-11-21 00:15:57,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:15:57,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:15:57,764 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] [2021-11-21 00:15:57,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-21 00:15:57,764 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:15:57,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:15:57,765 INFO L85 PathProgramCache]: Analyzing trace with hash 68058082, now seen corresponding path program 1 times [2021-11-21 00:15:57,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:15:57,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701655092] [2021-11-21 00:15:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:57,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:15:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:15:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:15:58,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:15:58,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701655092] [2021-11-21 00:15:58,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701655092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:15:58,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303820722] [2021-11-21 00:15:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:15:58,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:15:58,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:15:58,397 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:15:58,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-21 00:15:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:15:58,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-21 00:15:58,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:15:58,468 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 [2021-11-21 00:15:58,513 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:15:58,513 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 [2021-11-21 00:15:58,556 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 [2021-11-21 00:15:58,655 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:15:58,656 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 [2021-11-21 00:15:58,810 INFO L354 Elim1Store]: treesize reduction 92, result has 15.6 percent of original size [2021-11-21 00:15:58,810 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 97 treesize of output 66 [2021-11-21 00:15:58,823 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-21 00:15:58,823 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 87 treesize of output 77 [2021-11-21 00:15:59,115 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-21 00:15:59,115 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 [2021-11-21 00:15:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:59,211 INFO L354 Elim1Store]: treesize reduction 63, result has 17.1 percent of original size [2021-11-21 00:15:59,212 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 89 treesize of output 88 [2021-11-21 00:15:59,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:59,227 INFO L354 Elim1Store]: treesize reduction 71, result has 17.4 percent of original size [2021-11-21 00:15:59,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 65 [2021-11-21 00:15:59,406 INFO L354 Elim1Store]: treesize reduction 154, result has 17.2 percent of original size [2021-11-21 00:15:59,406 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 107 treesize of output 89 [2021-11-21 00:15:59,430 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-11-21 00:15:59,430 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 95 treesize of output 94 [2021-11-21 00:15:59,848 INFO L354 Elim1Store]: treesize reduction 232, result has 14.4 percent of original size [2021-11-21 00:15:59,848 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 110 [2021-11-21 00:15:59,882 INFO L354 Elim1Store]: treesize reduction 180, result has 15.9 percent of original size [2021-11-21 00:15:59,882 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 134 treesize of output 132 [2021-11-21 00:16:03,307 INFO L354 Elim1Store]: treesize reduction 144, result has 0.7 percent of original size [2021-11-21 00:16:03,308 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 7 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 76 [2021-11-21 00:16:03,316 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-21 00:16:03,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 33 [2021-11-21 00:16:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:16:03,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:16:05,662 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (= (let ((.cse2 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse2 0)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse2 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))) 0)) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (= (let ((.cse4 (+ 4 |ULTIMATE.start_main_~end~0#1.offset|))) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse4 0))) (.cse5 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (select .cse3 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse4 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse5)) (+ (select (select .cse3 |c_ULTIMATE.start_main_~list~0#1.base|) .cse5) 4)))) 0))) is different from false [2021-11-21 00:16:07,679 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_8 Int)) (= (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse3 (+ 4 v_subst_8)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (let ((.cse0 (store |c_#memory_$Pointer$.base| .cse2 (store (store (select |c_#memory_$Pointer$.base| .cse2) v_subst_8 0) .cse3 0)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (store |c_#memory_$Pointer$.offset| .cse2 (store (store (select |c_#memory_$Pointer$.offset| .cse2) v_subst_8 0) .cse3 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))) 0)) (forall ((v_subst_7 Int)) (= (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse6 (+ 4 v_subst_7))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| .cse5 (store (store (select |c_#memory_$Pointer$.offset| .cse5) v_subst_7 0) .cse6 0))) (.cse7 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (select .cse4 (select (select (store |c_#memory_$Pointer$.base| .cse5 (store (store (select |c_#memory_$Pointer$.base| .cse5) v_subst_7 0) .cse6 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse7)) (+ (select (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse7) 4)))) 0))) is different from false [2021-11-21 00:16:09,699 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_#t~malloc10#1.offset| Int) (v_subst_8 Int)) (= 0 (let ((.cse3 (+ 4 v_subst_8)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_8 0) .cse3 0))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) .cse1))) (+ (select (select (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_8 0) .cse3 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 4))))) (forall ((|ULTIMATE.start_main_#t~malloc10#1.offset| Int) (v_subst_7 Int)) (= (let ((.cse7 (+ 4 v_subst_7))) (let ((.cse5 (let ((.cse9 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse9 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse9 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_7 0) .cse7 0)))) (.cse8 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (select (select .cse5 (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse6 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (store (select .cse6 |c_ULTIMATE.start_main_#t~malloc10#1.base|) v_subst_7 0) .cse7 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse8)) (+ (select (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse8) 4)))) 0))) is different from false [2021-11-21 00:16:24,660 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:16:24,661 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 317736 treesize of output 216722 [2021-11-21 00:16:32,551 WARN L227 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 665 DAG size of output: 655 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-21 00:16:33,036 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:16:33,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1709120440] [2021-11-21 00:16:33,038 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2021-11-21 00:16:33,038 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:16:33,038 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:16:33,038 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:16:33,038 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:16:33,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,083 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 [2021-11-21 00:16:33,143 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 [2021-11-21 00:16:33,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,157 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 [2021-11-21 00:16:33,167 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 [2021-11-21 00:16:33,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,394 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 22 treesize of output 30 [2021-11-21 00:16:33,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,544 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 50 treesize of output 49 [2021-11-21 00:16:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,617 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 [2021-11-21 00:16:33,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,641 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 [2021-11-21 00:16:33,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,848 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:16:33,848 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 230 treesize of output 157 [2021-11-21 00:16:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:33,879 INFO L354 Elim1Store]: treesize reduction 78, result has 17.9 percent of original size [2021-11-21 00:16:33,880 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 220 treesize of output 189 [2021-11-21 00:16:33,915 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-21 00:16:33,915 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 167 treesize of output 140 [2021-11-21 00:16:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:34,227 INFO L354 Elim1Store]: treesize reduction 126, result has 16.0 percent of original size [2021-11-21 00:16:34,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 264 treesize of output 182 [2021-11-21 00:16:34,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:34,268 INFO L354 Elim1Store]: treesize reduction 114, result has 20.8 percent of original size [2021-11-21 00:16:34,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 254 treesize of output 226 [2021-11-21 00:16:34,298 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-21 00:16:34,299 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 244 treesize of output 201 [2021-11-21 00:16:35,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,369 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 33 treesize of output 44 [2021-11-21 00:16:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,629 INFO L354 Elim1Store]: treesize reduction 130, result has 15.0 percent of original size [2021-11-21 00:16:35,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 205 treesize of output 155 [2021-11-21 00:16:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,677 INFO L354 Elim1Store]: treesize reduction 136, result has 16.6 percent of original size [2021-11-21 00:16:35,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 207 treesize of output 199 [2021-11-21 00:16:35,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:35,839 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 [2021-11-21 00:16:36,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:36,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:36,226 INFO L354 Elim1Store]: treesize reduction 118, result has 20.8 percent of original size [2021-11-21 00:16:36,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 216 treesize of output 153 [2021-11-21 00:16:36,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:36,240 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:36,287 INFO L354 Elim1Store]: treesize reduction 166, result has 20.6 percent of original size [2021-11-21 00:16:36,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 192 treesize of output 196 [2021-11-21 00:16:36,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:36,458 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 [2021-11-21 00:16:37,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:37,900 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 [2021-11-21 00:16:37,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:37,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:37,989 INFO L354 Elim1Store]: treesize reduction 158, result has 16.4 percent of original size [2021-11-21 00:16:37,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 202 treesize of output 162 [2021-11-21 00:16:38,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:38,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:38,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:38,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:38,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:38,061 INFO L354 Elim1Store]: treesize reduction 212, result has 16.9 percent of original size [2021-11-21 00:16:38,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 198 treesize of output 205 [2021-11-21 00:16:39,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:39,848 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 38 treesize of output 52 [2021-11-21 00:16:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,061 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 [2021-11-21 00:16:40,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,181 INFO L354 Elim1Store]: treesize reduction 198, result has 13.5 percent of original size [2021-11-21 00:16:40,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 251 treesize of output 201 [2021-11-21 00:16:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:40,261 INFO L354 Elim1Store]: treesize reduction 264, result has 14.0 percent of original size [2021-11-21 00:16:40,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 253 treesize of output 256 [2021-11-21 00:16:40,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,886 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 [2021-11-21 00:16:40,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:40,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:41,012 INFO L354 Elim1Store]: treesize reduction 198, result has 18.5 percent of original size [2021-11-21 00:16:41,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 336 treesize of output 216 [2021-11-21 00:16:41,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:41,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:16:41,133 INFO L354 Elim1Store]: treesize reduction 298, result has 17.9 percent of original size [2021-11-21 00:16:41,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 332 treesize of output 338 [2021-11-21 00:16:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:44,032 INFO L354 Elim1Store]: treesize reduction 374, result has 11.6 percent of original size [2021-11-21 00:16:44,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 683 treesize of output 506 [2021-11-21 00:16:44,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:44,280 INFO L354 Elim1Store]: treesize reduction 510, result has 12.5 percent of original size [2021-11-21 00:16:44,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 690 treesize of output 677 [2021-11-21 00:16:44,351 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:16:44,352 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 697 treesize of output 676 [2021-11-21 00:16:49,834 INFO L354 Elim1Store]: treesize reduction 420, result has 11.4 percent of original size [2021-11-21 00:16:49,835 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 655 treesize of output 661 [2021-11-21 00:16:51,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:51,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:51,426 INFO L354 Elim1Store]: treesize reduction 400, result has 12.5 percent of original size [2021-11-21 00:16:51,426 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 33 case distinctions, treesize of input 766 treesize of output 569 [2021-11-21 00:16:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:51,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:16:51,635 INFO L354 Elim1Store]: treesize reduction 562, result has 10.4 percent of original size [2021-11-21 00:16:51,636 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 8 new quantified variables, introduced 33 case distinctions, treesize of input 758 treesize of output 733 [2021-11-21 00:16:51,691 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:16:51,692 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 746 treesize of output 729 [2021-11-21 00:16:55,339 INFO L354 Elim1Store]: treesize reduction 768, result has 9.8 percent of original size [2021-11-21 00:16:55,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1010 treesize of output 621 [2021-11-21 00:16:55,426 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:16:55,427 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 967 treesize of output 950 [2021-11-21 00:16:55,875 INFO L354 Elim1Store]: treesize reduction 1024, result has 10.6 percent of original size [2021-11-21 00:16:55,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 952 treesize of output 894 [2021-11-21 00:16:59,961 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 [2021-11-21 00:16:59,972 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 [2021-11-21 00:16:59,989 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 [2021-11-21 00:17:00,312 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 00:17:00,312 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 [2021-11-21 00:17:00,358 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:17:00,358 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 [2021-11-21 00:17:00,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:17:00,406 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 [2021-11-21 00:17:00,436 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 [2021-11-21 00:17:00,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:17:00,460 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 [2021-11-21 00:17:00,639 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 [2021-11-21 00:17:00,668 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:17:00,669 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 118 treesize of output 100 [2021-11-21 00:17:00,695 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-21 00:17:00,695 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 114 treesize of output 112 [2021-11-21 00:17:01,426 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 [2021-11-21 00:17:01,436 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 [2021-11-21 00:17:01,453 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 [2021-11-21 00:17:02,863 INFO L354 Elim1Store]: treesize reduction 104, result has 51.9 percent of original size [2021-11-21 00:17:02,863 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 256 treesize of output 350 [2021-11-21 00:17:04,548 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:17:04,548 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 [2021-11-21 00:17:04,982 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 [2021-11-21 00:17:04,990 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 [2021-11-21 00:17:05,008 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 11 treesize of output 7 [2021-11-21 00:17:05,120 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:17:05,121 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 66 [2021-11-21 00:17:05,138 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:17:05,138 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 63 treesize of output 58 [2021-11-21 00:17:05,293 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 [2021-11-21 00:17:05,458 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:17:11,226 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:17:11,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:17:11,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-11-21 00:17:11,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088560328] [2021-11-21 00:17:11,227 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 00:17:11,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 00:17:11,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:11,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 00:17:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=4301, Unknown=9, NotChecked=408, Total=5112 [2021-11-21 00:17:11,228 INFO L87 Difference]: Start difference. First operand 392 states and 477 transitions. Second operand has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-11-21 00:17:18,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:18,640 INFO L93 Difference]: Finished difference Result 528 states and 585 transitions. [2021-11-21 00:17:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-21 00:17:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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 [2021-11-21 00:17:18,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:18,643 INFO L225 Difference]: With dead ends: 528 [2021-11-21 00:17:18,643 INFO L226 Difference]: Without dead ends: 528 [2021-11-21 00:17:18,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2120 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=682, Invalid=6630, Unknown=10, NotChecked=510, Total=7832 [2021-11-21 00:17:18,644 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 548 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:18,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 1081 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 00:17:18,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-11-21 00:17:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 392. [2021-11-21 00:17:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 369 states have (on average 1.2899728997289972) internal successors, (476), 391 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 476 transitions. [2021-11-21 00:17:18,653 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 476 transitions. Word has length 46 [2021-11-21 00:17:18,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:18,653 INFO L470 AbstractCegarLoop]: Abstraction has 392 states and 476 transitions. [2021-11-21 00:17:18,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 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) [2021-11-21 00:17:18,653 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 476 transitions. [2021-11-21 00:17:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:17:18,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:18,654 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] [2021-11-21 00:17:18,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:18,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-21 00:17:18,880 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:17:18,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:18,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1740697515, now seen corresponding path program 1 times [2021-11-21 00:17:18,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:18,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182434104] [2021-11-21 00:17:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:18,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:19,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:19,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182434104] [2021-11-21 00:17:19,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182434104] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:17:19,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289995465] [2021-11-21 00:17:19,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:19,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:17:19,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:17:19,201 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:17:19,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-21 00:17:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:19,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-21 00:17:19,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:19,262 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 [2021-11-21 00:17:19,398 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:17:19,399 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 [2021-11-21 00:17:19,445 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 [2021-11-21 00:17:19,574 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:17:19,575 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 36 treesize of output 27 [2021-11-21 00:17:19,759 INFO L354 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2021-11-21 00:17:19,759 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 20 treesize of output 22 [2021-11-21 00:17:19,826 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-21 00:17:19,827 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 48 treesize of output 42 [2021-11-21 00:17:19,963 INFO L354 Elim1Store]: treesize reduction 88, result has 21.4 percent of original size [2021-11-21 00:17:19,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 58 treesize of output 48 [2021-11-21 00:17:20,136 INFO L354 Elim1Store]: treesize reduction 184, result has 14.4 percent of original size [2021-11-21 00:17:20,136 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 69 [2021-11-21 00:17:26,782 INFO L354 Elim1Store]: treesize reduction 186, result has 1.6 percent of original size [2021-11-21 00:17:26,783 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 8 new quantified variables, introduced 15 case distinctions, treesize of input 110 treesize of output 45 [2021-11-21 00:17:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:26,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:45,569 INFO L354 Elim1Store]: treesize reduction 5, result has 96.6 percent of original size [2021-11-21 00:17:45,570 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 156 treesize of output 155 [2021-11-21 00:18:04,527 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 75402 treesize of output 75146 [2021-11-21 00:18:07,627 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 00:18:07,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [264530037] [2021-11-21 00:18:07,628 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2021-11-21 00:18:07,628 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:18:07,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:18:07,629 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:18:07,629 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:18:07,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:07,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:07,663 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 [2021-11-21 00:18:07,700 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 [2021-11-21 00:18:07,707 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 [2021-11-21 00:18:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:07,748 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 [2021-11-21 00:18:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,054 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 [2021-11-21 00:18:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,067 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 [2021-11-21 00:18:08,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,095 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 [2021-11-21 00:18:08,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:08,994 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 22 treesize of output 30 [2021-11-21 00:18:09,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,141 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 28 treesize of output 23 [2021-11-21 00:18:09,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,158 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 57 treesize of output 52 [2021-11-21 00:18:09,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,199 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 [2021-11-21 00:18:09,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,409 INFO L354 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2021-11-21 00:18:09,409 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 2 case distinctions, treesize of input 35 treesize of output 33 [2021-11-21 00:18:09,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,436 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 [2021-11-21 00:18:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:09,502 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-21 00:18:09,503 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 1 case distinctions, treesize of input 77 treesize of output 59 [2021-11-21 00:18:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 00:18:10,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,460 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:10,476 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-21 00:18:10,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 93 [2021-11-21 00:18:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:18:10,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,611 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 [2021-11-21 00:18:10,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:10,948 INFO L354 Elim1Store]: treesize reduction 172, result has 16.1 percent of original size [2021-11-21 00:18:10,948 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 8 case distinctions, treesize of input 304 treesize of output 217 [2021-11-21 00:18:10,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:10,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:11,013 INFO L354 Elim1Store]: treesize reduction 172, result has 16.1 percent of original size [2021-11-21 00:18:11,013 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 8 case distinctions, treesize of input 294 treesize of output 269 [2021-11-21 00:18:11,050 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-21 00:18:11,050 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 284 treesize of output 245 [2021-11-21 00:18:11,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:11,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:11,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:11,601 INFO L354 Elim1Store]: treesize reduction 314, result has 12.8 percent of original size [2021-11-21 00:18:11,601 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 13 case distinctions, treesize of input 350 treesize of output 254 [2021-11-21 00:18:11,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:11,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:11,615 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:11,685 INFO L354 Elim1Store]: treesize reduction 270, result has 14.6 percent of original size [2021-11-21 00:18:11,685 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 13 case distinctions, treesize of input 320 treesize of output 289 [2021-11-21 00:18:11,719 INFO L354 Elim1Store]: treesize reduction 140, result has 9.7 percent of original size [2021-11-21 00:18:11,720 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 310 treesize of output 267 [2021-11-21 00:18:13,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,545 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 38 treesize of output 52 [2021-11-21 00:18:13,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:18:13,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,941 INFO L354 Elim1Store]: treesize reduction 272, result has 9.6 percent of original size [2021-11-21 00:18:13,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 258 treesize of output 214 [2021-11-21 00:18:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:13,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:14,036 INFO L354 Elim1Store]: treesize reduction 244, result has 10.0 percent of original size [2021-11-21 00:18:14,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 260 treesize of output 249 [2021-11-21 00:18:14,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:14,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-21 00:18:14,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:14,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:14,543 INFO L354 Elim1Store]: treesize reduction 274, result has 14.1 percent of original size [2021-11-21 00:18:14,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 20 case distinctions, treesize of input 388 treesize of output 242 [2021-11-21 00:18:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:14,560 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:14,665 INFO L354 Elim1Store]: treesize reduction 434, result has 13.7 percent of original size [2021-11-21 00:18:14,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 344 treesize of output 324 [2021-11-21 00:18:16,852 INFO L354 Elim1Store]: treesize reduction 280, result has 16.4 percent of original size [2021-11-21 00:18:16,853 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 584 treesize of output 601 [2021-11-21 00:18:18,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:18,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:18,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:18,758 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:19,064 INFO L354 Elim1Store]: treesize reduction 324, result has 22.3 percent of original size [2021-11-21 00:18:19,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 674 treesize of output 573 [2021-11-21 00:18:19,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:19,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:19,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:19,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:19,090 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:19,395 INFO L354 Elim1Store]: treesize reduction 394, result has 18.1 percent of original size [2021-11-21 00:18:19,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 728 treesize of output 699 [2021-11-21 00:18:19,467 INFO L354 Elim1Store]: treesize reduction 68, result has 18.1 percent of original size [2021-11-21 00:18:19,468 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 710 treesize of output 689 [2021-11-21 00:18:24,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:24,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:24,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:24,927 INFO L354 Elim1Store]: treesize reduction 514, result has 11.2 percent of original size [2021-11-21 00:18:24,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 777 treesize of output 558 [2021-11-21 00:18:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:24,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:24,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:25,197 INFO L354 Elim1Store]: treesize reduction 668, result has 13.4 percent of original size [2021-11-21 00:18:25,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 788 treesize of output 771 [2021-11-21 00:18:25,255 INFO L354 Elim1Store]: treesize reduction 128, result has 10.5 percent of original size [2021-11-21 00:18:25,255 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 799 treesize of output 752 [2021-11-21 00:18:27,224 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:27,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:27,505 INFO L354 Elim1Store]: treesize reduction 744, result has 9.5 percent of original size [2021-11-21 00:18:27,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 823 treesize of output 595 [2021-11-21 00:18:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:27,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:27,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:27,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:27,826 INFO L354 Elim1Store]: treesize reduction 862, result has 11.9 percent of original size [2021-11-21 00:18:27,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 45 case distinctions, treesize of input 834 treesize of output 811 [2021-11-21 00:18:27,837 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 782 treesize of output 747 [2021-11-21 00:18:33,337 INFO L354 Elim1Store]: treesize reduction 420, result has 11.4 percent of original size [2021-11-21 00:18:33,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 633 treesize of output 641 [2021-11-21 00:18:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:34,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:34,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:34,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:34,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:35,358 INFO L354 Elim1Store]: treesize reduction 438, result has 13.9 percent of original size [2021-11-21 00:18:35,358 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 813 treesize of output 603 [2021-11-21 00:18:35,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:35,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:35,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:35,383 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:35,740 INFO L354 Elim1Store]: treesize reduction 720, result has 11.7 percent of original size [2021-11-21 00:18:35,740 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 52 case distinctions, treesize of input 845 treesize of output 842 [2021-11-21 00:18:35,826 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:18:35,827 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 833 treesize of output 816 [2021-11-21 00:18:39,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:39,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:39,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:40,368 INFO L354 Elim1Store]: treesize reduction 530, result has 14.4 percent of original size [2021-11-21 00:18:40,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 16 new quantified variables, introduced 55 case distinctions, treesize of input 1356 treesize of output 692 [2021-11-21 00:18:40,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:40,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:40,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:18:40,845 INFO L354 Elim1Store]: treesize reduction 882, result has 14.1 percent of original size [2021-11-21 00:18:40,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 1334 treesize of output 1189 [2021-11-21 00:18:40,907 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-21 00:18:40,908 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 1392 treesize of output 1375 [2021-11-21 00:18:48,790 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 [2021-11-21 00:18:48,796 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 [2021-11-21 00:18:48,824 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 31 treesize of output 27 [2021-11-21 00:18:48,853 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 [2021-11-21 00:18:48,866 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 [2021-11-21 00:18:48,966 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-21 00:18:48,966 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 173 treesize of output 125 [2021-11-21 00:18:48,985 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:18:48,985 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 122 treesize of output 88 [2021-11-21 00:18:48,990 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 118 treesize of output 91 [2021-11-21 00:18:49,232 INFO L354 Elim1Store]: treesize reduction 184, result has 21.4 percent of original size [2021-11-21 00:18:49,233 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 258 treesize of output 202 [2021-11-21 00:18:49,268 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-11-21 00:18:49,268 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 141 [2021-11-21 00:18:49,275 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 189 treesize of output 158 [2021-11-21 00:18:50,028 INFO L354 Elim1Store]: treesize reduction 42, result has 45.5 percent of original size [2021-11-21 00:18:50,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 48 [2021-11-21 00:18:50,205 INFO L354 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2021-11-21 00:18:50,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2021-11-21 00:18:50,266 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 [2021-11-21 00:18:50,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:50,313 INFO L354 Elim1Store]: treesize reduction 154, result has 15.8 percent of original size [2021-11-21 00:18:50,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 166 [2021-11-21 00:18:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:18:50,351 INFO L354 Elim1Store]: treesize reduction 132, result has 17.0 percent of original size [2021-11-21 00:18:50,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 225 treesize of output 212 [2021-11-21 00:18:50,880 INFO L354 Elim1Store]: treesize reduction 256, result has 15.0 percent of original size [2021-11-21 00:18:50,880 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 244 treesize of output 183 [2021-11-21 00:18:50,944 INFO L354 Elim1Store]: treesize reduction 232, result has 15.6 percent of original size [2021-11-21 00:18:50,944 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 240 treesize of output 226 [2021-11-21 00:18:51,271 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 [2021-11-21 00:18:52,706 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 [2021-11-21 00:18:52,726 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 [2021-11-21 00:18:52,745 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 31 treesize of output 27 [2021-11-21 00:18:52,762 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 [2021-11-21 00:18:52,783 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 [2021-11-21 00:18:52,893 INFO L354 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2021-11-21 00:18:52,893 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 173 treesize of output 125 [2021-11-21 00:18:52,911 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-21 00:18:52,912 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 122 treesize of output 88 [2021-11-21 00:18:52,917 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 118 treesize of output 91 [2021-11-21 00:18:53,137 INFO L354 Elim1Store]: treesize reduction 184, result has 21.4 percent of original size [2021-11-21 00:18:53,138 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 258 treesize of output 202 [2021-11-21 00:18:53,170 INFO L354 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2021-11-21 00:18:53,171 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 141 [2021-11-21 00:18:53,180 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 189 treesize of output 158 [2021-11-21 00:18:55,741 INFO L354 Elim1Store]: treesize reduction 156, result has 27.8 percent of original size [2021-11-21 00:18:55,741 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 266 treesize of output 308 [2021-11-21 00:18:56,932 INFO L354 Elim1Store]: treesize reduction 68, result has 31.3 percent of original size [2021-11-21 00:18:56,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2021-11-21 00:18:57,296 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 [2021-11-21 00:18:57,302 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 [2021-11-21 00:18:57,309 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 [2021-11-21 00:18:57,429 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 [2021-11-21 00:18:57,467 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-21 00:18:57,467 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 66 [2021-11-21 00:18:57,486 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:18:57,486 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 63 treesize of output 58 [2021-11-21 00:18:57,770 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:19:02,156 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 00:19:02,156 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:19:02,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-21 00:19:02,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260824476] [2021-11-21 00:19:02,157 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 00:19:02,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 00:19:02,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:19:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 00:19:02,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=4593, Unknown=23, NotChecked=0, Total=4970 [2021-11-21 00:19:02,158 INFO L87 Difference]: Start difference. First operand 392 states and 476 transitions. Second operand has 16 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 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) [2021-11-21 00:19:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:19:03,535 INFO L93 Difference]: Finished difference Result 557 states and 653 transitions. [2021-11-21 00:19:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 00:19:03,536 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 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 [2021-11-21 00:19:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:19:03,539 INFO L225 Difference]: With dead ends: 557 [2021-11-21 00:19:03,539 INFO L226 Difference]: Without dead ends: 557 [2021-11-21 00:19:03,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2236 ImplicationChecksByTransitivity, 48.5s TimeCoverageRelationStatistics Valid=475, Invalid=5982, Unknown=23, NotChecked=0, Total=6480 [2021-11-21 00:19:03,540 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 534 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:19:03,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 696 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-21 00:19:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-11-21 00:19:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 422. [2021-11-21 00:19:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 399 states have (on average 1.2932330827067668) internal successors, (516), 421 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:19:03,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 516 transitions. [2021-11-21 00:19:03,551 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 516 transitions. Word has length 46 [2021-11-21 00:19:03,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:19:03,551 INFO L470 AbstractCegarLoop]: Abstraction has 422 states and 516 transitions. [2021-11-21 00:19:03,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.066666666666667) internal successors, (46), 16 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) [2021-11-21 00:19:03,552 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 516 transitions. [2021-11-21 00:19:03,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:19:03,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:19:03,553 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] [2021-11-21 00:19:03,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-21 00:19:03,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:19:03,780 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 75 more)] === [2021-11-21 00:19:03,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:19:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1740697514, now seen corresponding path program 1 times [2021-11-21 00:19:03,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:19:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86236996] [2021-11-21 00:19:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:03,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:19:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:19:04,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:19:04,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86236996] [2021-11-21 00:19:04,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86236996] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:19:04,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270651233] [2021-11-21 00:19:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:19:04,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:19:04,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:19:04,408 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:19:04,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aed04fbe-294d-49c0-af8b-464459709ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-21 00:19:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:19:04,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-21 00:19:04,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:19:04,501 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 [2021-11-21 00:19:04,727 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:19:04,728 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 [2021-11-21 00:19:04,792 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 [2021-11-21 00:19:04,804 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 [2021-11-21 00:19:04,939 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 00:19:04,939 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 36 treesize of output 27 [2021-11-21 00:19:04,952 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 19 treesize of output 18 [2021-11-21 00:19:05,201 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-21 00:19:05,201 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 16 treesize of output 18 [2021-11-21 00:19:05,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:05,296 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 28 treesize of output 30 [2021-11-21 00:19:05,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:05,305 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 36 treesize of output 38 [2021-11-21 00:19:05,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:05,506 INFO L354 Elim1Store]: treesize reduction 78, result has 23.5 percent of original size [2021-11-21 00:19:05,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 73 [2021-11-21 00:19:05,528 INFO L354 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2021-11-21 00:19:05,528 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 85 treesize of output 81 [2021-11-21 00:19:05,830 INFO L354 Elim1Store]: treesize reduction 184, result has 14.4 percent of original size [2021-11-21 00:19:05,830 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 6 new quantified variables, introduced 10 case distinctions, treesize of input 184 treesize of output 108 [2021-11-21 00:19:05,869 INFO L354 Elim1Store]: treesize reduction 202, result has 15.1 percent of original size [2021-11-21 00:19:05,870 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 170 treesize of output 165