./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:16:12,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:16:12,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:16:12,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:16:12,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:16:12,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:16:12,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:16:12,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:16:12,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:16:12,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:16:12,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:16:12,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:16:12,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:16:12,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:16:12,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:16:12,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:16:12,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:16:12,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:16:12,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:16:12,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:16:12,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:16:12,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:16:12,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:16:12,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:16:12,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:16:12,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:16:12,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:16:12,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:16:12,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:16:12,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:16:12,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:16:12,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:16:12,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:16:12,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:16:12,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:16:12,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:16:12,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:16:12,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:16:12,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:16:12,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:16:12,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:16:12,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:16:12,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:16:12,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:16:12,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:16:12,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:16:12,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:16:12,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:16:12,216 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:16:12,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:16:12,217 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:16:12,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:16:12,217 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:16:12,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:16:12,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:16:12,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:16:12,219 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:16:12,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:16:12,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:16:12,220 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:16:12,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:16:12,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:16:12,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:16:12,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:16:12,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:16:12,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:16:12,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:16:12,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:16:12,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:16:12,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:16:12,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:16:12,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:16:12,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:16:12,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:16:12,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:16:12,227 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:16:12,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:16:12,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:16:12,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:16:12,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:16:12,228 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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a [2021-11-21 01:16:12,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:16:12,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:16:12,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:16:12,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:16:12,539 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:16:12,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2021-11-21 01:16:12,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/data/783d087ea/f4e7349ff57e465bb6eedef86fda4e4e/FLAG498157e77 [2021-11-21 01:16:13,440 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:16:13,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2021-11-21 01:16:13,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/data/783d087ea/f4e7349ff57e465bb6eedef86fda4e4e/FLAG498157e77 [2021-11-21 01:16:13,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/data/783d087ea/f4e7349ff57e465bb6eedef86fda4e4e [2021-11-21 01:16:13,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:16:13,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:16:13,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:16:13,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:16:13,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:16:13,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:16:13" (1/1) ... [2021-11-21 01:16:13,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60204464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:13, skipping insertion in model container [2021-11-21 01:16:13,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:16:13" (1/1) ... [2021-11-21 01:16:13,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:16:14,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:16:14,341 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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2021-11-21 01:16:14,348 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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2021-11-21 01:16:15,312 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,313 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,314 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,315 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,316 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,331 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,332 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,334 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,334 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:15,765 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:16:15,766 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:16:15,768 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:16:15,769 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:16:15,771 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:16:15,772 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:16:15,773 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:16:15,774 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:16:15,774 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:16:15,775 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:16:15,970 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:16:16,069 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,081 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:16:16,234 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:16:16,262 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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4499,4512] [2021-11-21 01:16:16,262 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_e6215eb9-f735-4383-9d2e-f593c0e4fdca/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i[4559,4572] [2021-11-21 01:16:16,320 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,321 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,325 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,326 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,326 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,338 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,342 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,344 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,347 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,395 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-21 01:16:16,396 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-21 01:16:16,397 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-21 01:16:16,397 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-21 01:16:16,401 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-21 01:16:16,401 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-21 01:16:16,402 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-21 01:16:16,403 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-21 01:16:16,403 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-21 01:16:16,404 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-21 01:16:16,469 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-21 01:16:16,544 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,545 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-21 01:16:16,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:16:16,924 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:16:16,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16 WrapperNode [2021-11-21 01:16:16,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:16:16,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:16:16,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:16:16,926 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:16:16,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,186 INFO L137 Inliner]: procedures = 691, calls = 2645, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 975 [2021-11-21 01:16:17,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:16:17,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:16:17,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:16:17,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:16:17,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:16:17,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:16:17,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:16:17,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:16:17,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (1/1) ... [2021-11-21 01:16:17,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:16:17,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:17,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:16:17,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:16:17,450 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2021-11-21 01:16:17,450 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2021-11-21 01:16:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-21 01:16:17,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2021-11-21 01:16:17,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2021-11-21 01:16:17,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-21 01:16:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-21 01:16:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:16:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-21 01:16:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-21 01:16:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-11-21 01:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh64 [2021-11-21 01:16:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh64 [2021-11-21 01:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:16:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:16:17,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:16:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:16:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:16:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:16:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-21 01:16:17,458 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-21 01:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-21 01:16:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-21 01:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-21 01:16:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-21 01:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-21 01:16:17,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-21 01:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:16:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-21 01:16:17,461 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-21 01:16:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:16:17,461 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2021-11-21 01:16:17,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2021-11-21 01:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-11-21 01:16:17,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:16:17,793 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:16:17,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:16:19,377 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:16:19,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:16:19,605 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:16:19,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:16:19 BoogieIcfgContainer [2021-11-21 01:16:19,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:16:19,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:16:19,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:16:19,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:16:19,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:16:13" (1/3) ... [2021-11-21 01:16:19,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b46388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:16:19, skipping insertion in model container [2021-11-21 01:16:19,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:16" (2/3) ... [2021-11-21 01:16:19,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b46388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:16:19, skipping insertion in model container [2021-11-21 01:16:19,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:16:19" (3/3) ... [2021-11-21 01:16:19,621 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness.i [2021-11-21 01:16:19,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:16:19,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:16:19,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:16:19,728 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 01:16:19,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:16:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 134 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2021-11-21 01:16:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-21 01:16:19,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:19,771 INFO L514 BasicCegarLoop]: trace histogram [9, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:19,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:19,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1133702169, now seen corresponding path program 1 times [2021-11-21 01:16:19,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:19,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289123669] [2021-11-21 01:16:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:19,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:20,951 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-21 01:16:20,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:20,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289123669] [2021-11-21 01:16:20,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289123669] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:20,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723610279] [2021-11-21 01:16:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:20,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:20,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:20,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:20,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:16:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:21,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2675 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-21 01:16:21,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:22,157 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-11-21 01:16:22,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:16:22,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723610279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:22,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:16:22,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 11 [2021-11-21 01:16:22,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073695696] [2021-11-21 01:16:22,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:22,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:16:22,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:16:22,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:16:22,197 INFO L87 Difference]: Start difference. First operand has 134 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:16:24,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:24,099 INFO L93 Difference]: Finished difference Result 255 states and 365 transitions. [2021-11-21 01:16:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:16:24,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 90 [2021-11-21 01:16:24,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:24,113 INFO L225 Difference]: With dead ends: 255 [2021-11-21 01:16:24,113 INFO L226 Difference]: Without dead ends: 132 [2021-11-21 01:16:24,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:16:24,133 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 2 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:24,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 909 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:16:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-21 01:16:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-11-21 01:16:24,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2021-11-21 01:16:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2021-11-21 01:16:24,216 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 90 [2021-11-21 01:16:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:24,218 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2021-11-21 01:16:24,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-21 01:16:24,219 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2021-11-21 01:16:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:16:24,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:24,225 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:24,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:24,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 01:16:24,443 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:24,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:24,444 INFO L85 PathProgramCache]: Analyzing trace with hash -538355320, now seen corresponding path program 1 times [2021-11-21 01:16:24,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:24,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871048932] [2021-11-21 01:16:24,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:24,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-21 01:16:25,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:25,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871048932] [2021-11-21 01:16:25,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871048932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:25,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:25,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:25,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716239950] [2021-11-21 01:16:25,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:25,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:16:25,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:25,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:16:25,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:16:25,298 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:16:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:26,811 INFO L93 Difference]: Finished difference Result 233 states and 316 transitions. [2021-11-21 01:16:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 98 [2021-11-21 01:16:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:26,816 INFO L225 Difference]: With dead ends: 233 [2021-11-21 01:16:26,816 INFO L226 Difference]: Without dead ends: 135 [2021-11-21 01:16:26,818 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 01:16:26,820 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 4 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:26,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 469 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:16:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-21 01:16:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-21 01:16:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 72 states have internal predecessors, (83), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2021-11-21 01:16:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 183 transitions. [2021-11-21 01:16:26,839 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 183 transitions. Word has length 98 [2021-11-21 01:16:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:26,840 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 183 transitions. [2021-11-21 01:16:26,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:16:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 183 transitions. [2021-11-21 01:16:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-21 01:16:26,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:26,843 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:26,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:16:26,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:26,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:26,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1966463303, now seen corresponding path program 1 times [2021-11-21 01:16:26,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:26,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739407573] [2021-11-21 01:16:26,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:26,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-21 01:16:28,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:28,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739407573] [2021-11-21 01:16:28,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739407573] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:28,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76968241] [2021-11-21 01:16:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:28,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:28,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:28,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:16:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:28,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 2748 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:16:28,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-21 01:16:28,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:16:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-21 01:16:29,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76968241] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:29,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:16:29,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 8 [2021-11-21 01:16:29,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445296559] [2021-11-21 01:16:29,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:29,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:16:29,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:29,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:16:29,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:29,328 INFO L87 Difference]: Start difference. First operand 135 states and 183 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:16:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:30,462 INFO L93 Difference]: Finished difference Result 242 states and 333 transitions. [2021-11-21 01:16:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:30,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 99 [2021-11-21 01:16:30,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:30,466 INFO L225 Difference]: With dead ends: 242 [2021-11-21 01:16:30,466 INFO L226 Difference]: Without dead ends: 140 [2021-11-21 01:16:30,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:30,468 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 4 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:30,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 313 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 01:16:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-21 01:16:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-11-21 01:16:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 73 states have (on average 1.178082191780822) internal successors, (86), 74 states have internal predecessors, (86), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2021-11-21 01:16:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 186 transitions. [2021-11-21 01:16:30,488 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 186 transitions. Word has length 99 [2021-11-21 01:16:30,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:30,489 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 186 transitions. [2021-11-21 01:16:30,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:16:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 186 transitions. [2021-11-21 01:16:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-21 01:16:30,491 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:30,492 INFO L514 BasicCegarLoop]: trace histogram [10, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:30,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:30,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:30,705 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash -224717654, now seen corresponding path program 1 times [2021-11-21 01:16:30,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:30,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311499902] [2021-11-21 01:16:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:30,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:16:31,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:31,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311499902] [2021-11-21 01:16:31,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311499902] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:31,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018930200] [2021-11-21 01:16:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:31,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:31,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:31,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:31,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:16:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:32,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 2759 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-21 01:16:32,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:32,265 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 01:16:32,271 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 13 treesize of output 9 [2021-11-21 01:16:33,920 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:33,924 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:16:33,924 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 36 treesize of output 26 [2021-11-21 01:16:33,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:33,934 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:16:33,934 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 20 treesize of output 10 [2021-11-21 01:16:34,158 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 20 treesize of output 12 [2021-11-21 01:16:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-21 01:16:34,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:16:34,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018930200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:34,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:16:34,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2021-11-21 01:16:34,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343613651] [2021-11-21 01:16:34,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:34,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 01:16:34,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 01:16:34,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-21 01:16:34,338 INFO L87 Difference]: Start difference. First operand 138 states and 186 transitions. Second operand has 17 states, 9 states have (on average 4.555555555555555) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2021-11-21 01:16:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:37,843 INFO L93 Difference]: Finished difference Result 258 states and 349 transitions. [2021-11-21 01:16:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-21 01:16:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 9 states have (on average 4.555555555555555) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) Word has length 100 [2021-11-21 01:16:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:37,846 INFO L225 Difference]: With dead ends: 258 [2021-11-21 01:16:37,846 INFO L226 Difference]: Without dead ends: 138 [2021-11-21 01:16:37,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-11-21 01:16:37,848 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 69 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:37,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1449 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 618 Invalid, 0 Unknown, 52 Unchecked, 3.3s Time] [2021-11-21 01:16:37,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-21 01:16:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-11-21 01:16:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 73 states have (on average 1.1643835616438356) internal successors, (85), 74 states have internal predecessors, (85), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2021-11-21 01:16:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 185 transitions. [2021-11-21 01:16:37,878 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 185 transitions. Word has length 100 [2021-11-21 01:16:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:37,879 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 185 transitions. [2021-11-21 01:16:37,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 9 states have (on average 4.555555555555555) internal successors, (41), 12 states have internal predecessors, (41), 7 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (23), 7 states have call predecessors, (23), 7 states have call successors, (23) [2021-11-21 01:16:37,879 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2021-11-21 01:16:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:16:37,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:37,887 INFO L514 BasicCegarLoop]: trace histogram [11, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:16:37,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:16:38,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:38,101 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:16:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:38,102 INFO L85 PathProgramCache]: Analyzing trace with hash 299572105, now seen corresponding path program 1 times [2021-11-21 01:16:38,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:38,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289099870] [2021-11-21 01:16:38,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:38,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:38,821 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-21 01:16:38,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:38,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289099870] [2021-11-21 01:16:38,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289099870] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:38,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566431227] [2021-11-21 01:16:38,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:38,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:38,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:38,823 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:38,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:16:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:39,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2790 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-21 01:16:39,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:39,886 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 18 treesize of output 14 [2021-11-21 01:16:40,831 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 32 treesize of output 24 [2021-11-21 01:16:40,836 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 21 treesize of output 13 [2021-11-21 01:16:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-21 01:16:40,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:16:41,773 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 9 treesize of output 5 [2021-11-21 01:16:41,848 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 40 treesize of output 34 [2021-11-21 01:16:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2021-11-21 01:16:42,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566431227] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:16:42,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524540902] [2021-11-21 01:16:42,225 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2021-11-21 01:16:42,225 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:16:42,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:16:42,236 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:16:42,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:16:56,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:56,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:56,639 INFO L244 Elim1Store]: Index analysis took 498 ms [2021-11-21 01:17:13,887 WARN L227 SmtUtils]: Spent 17.16s on a formula simplification. DAG size of input: 1767 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:17:13,893 INFO L354 Elim1Store]: treesize reduction 1960, result has 47.4 percent of original size [2021-11-21 01:17:13,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19506 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 196 case distinctions, treesize of input 997 treesize of output 2374 [2021-11-21 01:17:43,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:43,975 INFO L244 Elim1Store]: Index analysis took 1061 ms [2021-11-21 01:18:14,123 WARN L227 SmtUtils]: Spent 30.08s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:18:14,127 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 01:18:14,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 200 select indices, 200 select index equivalence classes, 19704 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 392 case distinctions, treesize of input 1007 treesize of output 2385 [2021-11-21 01:18:49,519 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:18:49,652 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:18:50,166 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 01:18:50,181 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 01:18:50,559 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:18:53,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:18:53,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:54,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:18:54,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:54,991 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 01:18:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:55,200 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 61 treesize of output 45 [2021-11-21 01:18:55,223 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 42 treesize of output 38 [2021-11-21 01:18:55,297 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 01:19:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,304 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-21 01:19:14,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 35 treesize of output 35 [2021-11-21 01:19:14,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:14,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2021-11-21 01:19:20,576 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:19:21,029 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:19:21,170 INFO L197 IcfgInterpreter]: Interpreting procedure aws_byte_cursor_is_valid with input of size 100 for LOIs [2021-11-21 01:19:22,829 INFO L197 IcfgInterpreter]: Interpreting procedure can_fail_malloc with input of size 70 for LOIs [2021-11-21 01:19:26,715 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 83 for LOIs [2021-11-21 01:19:27,001 INFO L197 IcfgInterpreter]: Interpreting procedure bounded_malloc with input of size 99 for LOIs [2021-11-21 01:19:28,600 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 64 for LOIs [2021-11-21 01:19:28,767 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:19:38,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1524540902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:38,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:19:38,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [5, 18, 15] total 62 [2021-11-21 01:19:38,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691411146] [2021-11-21 01:19:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:38,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-21 01:19:38,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:38,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-21 01:19:38,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=3464, Unknown=0, NotChecked=0, Total=3782 [2021-11-21 01:19:38,582 INFO L87 Difference]: Start difference. First operand 138 states and 185 transitions. Second operand has 29 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 11 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) [2021-11-21 01:19:46,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:46,303 INFO L93 Difference]: Finished difference Result 246 states and 329 transitions. [2021-11-21 01:19:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-21 01:19:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 11 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) Word has length 108 [2021-11-21 01:19:46,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:46,306 INFO L225 Difference]: With dead ends: 246 [2021-11-21 01:19:46,306 INFO L226 Difference]: Without dead ends: 140 [2021-11-21 01:19:46,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 256 SyntacticMatches, 11 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1824 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=363, Invalid=4059, Unknown=0, NotChecked=0, Total=4422 [2021-11-21 01:19:46,310 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 73 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 301 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:46,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 463 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1664 Invalid, 0 Unknown, 301 Unchecked, 6.0s Time] [2021-11-21 01:19:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-21 01:19:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-21 01:19:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 74 states have (on average 1.1486486486486487) internal successors, (85), 75 states have internal predecessors, (85), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2021-11-21 01:19:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 185 transitions. [2021-11-21 01:19:46,348 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 185 transitions. Word has length 108 [2021-11-21 01:19:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:46,348 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 185 transitions. [2021-11-21 01:19:46,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 11 states have call successors, (26), 4 states have call predecessors, (26), 6 states have return successors, (24), 12 states have call predecessors, (24), 11 states have call successors, (24) [2021-11-21 01:19:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 185 transitions. [2021-11-21 01:19:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-21 01:19:46,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:46,358 INFO L514 BasicCegarLoop]: trace histogram [12, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:46,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:46,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:46,581 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:19:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:46,581 INFO L85 PathProgramCache]: Analyzing trace with hash 584806943, now seen corresponding path program 1 times [2021-11-21 01:19:46,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:46,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061952053] [2021-11-21 01:19:46,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:46,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-21 01:19:47,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061952053] [2021-11-21 01:19:47,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061952053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:19:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663830819] [2021-11-21 01:19:47,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:47,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:47,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:47,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6215eb9-f735-4383-9d2e-f593c0e4fdca/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:19:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:48,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 2810 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:19:48,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 78 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-21 01:19:48,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:19:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-21 01:19:49,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663830819] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:19:49,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1999414944] [2021-11-21 01:19:49,013 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2021-11-21 01:19:49,013 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:19:49,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:19:49,014 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:19:49,015 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:19:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:59,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:59,625 INFO L244 Elim1Store]: Index analysis took 297 ms [2021-11-21 01:20:16,317 WARN L227 SmtUtils]: Spent 16.64s on a formula simplification. DAG size of input: 1767 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:20:16,320 INFO L354 Elim1Store]: treesize reduction 1960, result has 47.4 percent of original size [2021-11-21 01:20:16,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19506 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 196 case distinctions, treesize of input 997 treesize of output 2374 [2021-11-21 01:21:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:04,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:04,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:05,232 INFO L244 Elim1Store]: Index analysis took 1322 ms [2021-11-21 01:21:34,696 WARN L227 SmtUtils]: Spent 29.42s on a formula simplification. DAG size of input: 2161 DAG size of output: 1179 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:21:34,699 INFO L354 Elim1Store]: treesize reduction 3528, result has 33.3 percent of original size [2021-11-21 01:21:34,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 200 select indices, 200 select index equivalence classes, 19704 disjoint index pairs (out of 19900 index pairs), introduced 200 new quantified variables, introduced 392 case distinctions, treesize of input 1007 treesize of output 2385 [2021-11-21 01:22:01,940 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:22:02,039 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:22:02,345 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 01:22:02,356 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 01:22:02,650 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:22:05,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:22:05,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:22:06,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:22:06,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:22:07,250 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 20 treesize of output 16 [2021-11-21 01:22:07,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:07,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 45 [2021-11-21 01:22:07,337 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 42 treesize of output 38 [2021-11-21 01:22:07,503 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 01:22:25,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:25,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:25,895 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-21 01:22:25,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 35 treesize of output 35 [2021-11-21 01:22:26,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:26,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2021-11-21 01:22:27,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:27,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:27,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,359 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:22:27,360 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 31 [2021-11-21 01:22:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:27,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:27,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,599 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:22:27,600 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 93 [2021-11-21 01:22:27,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:27,643 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:27,676 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:22:27,677 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 107 [2021-11-21 01:22:28,046 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 01:22:43,862 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:43,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:43,932 INFO L354 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2021-11-21 01:22:43,933 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 538 treesize of output 469 [2021-11-21 01:22:43,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:43,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:43,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:43,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:43,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:44,095 INFO L354 Elim1Store]: treesize reduction 216, result has 11.8 percent of original size [2021-11-21 01:22:44,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 14 case distinctions, treesize of input 520 treesize of output 542 [2021-11-21 01:22:44,130 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:44,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:44,193 INFO L354 Elim1Store]: treesize reduction 52, result has 30.7 percent of original size [2021-11-21 01:22:44,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 607 treesize of output 586 [2021-11-21 01:22:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:47,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:47,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:47,392 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-11-21 01:22:47,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 94 [2021-11-21 01:22:48,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:48,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:48,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:48,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:48,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:48,180 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:22:48,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 87 [2021-11-21 01:22:50,066 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 01:22:50,790 INFO L354 Elim1Store]: treesize reduction 96, result has 18.6 percent of original size [2021-11-21 01:22:50,790 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 6 case distinctions, treesize of input 409 treesize of output 405 [2021-11-21 01:22:50,879 INFO L354 Elim1Store]: treesize reduction 126, result has 14.9 percent of original size [2021-11-21 01:22:50,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 case distinctions, treesize of input 408 treesize of output 402 [2021-11-21 01:23:14,723 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 1 [2021-11-21 01:23:14,747 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 1 [2021-11-21 01:23:14,790 INFO L354 Elim1Store]: treesize reduction 39, result has 31.6 percent of original size [2021-11-21 01:23:14,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 91 [2021-11-21 01:23:14,917 INFO L354 Elim1Store]: treesize reduction 39, result has 31.6 percent of original size [2021-11-21 01:23:14,917 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 206 treesize of output 175 [2021-11-21 01:23:14,943 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-21 01:23:14,944 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 194 treesize of output 179 [2021-11-21 01:23:15,108 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 1 [2021-11-21 01:23:15,155 INFO L354 Elim1Store]: treesize reduction 39, result has 31.6 percent of original size [2021-11-21 01:23:15,156 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 108 treesize of output 91 [2021-11-21 01:23:15,262 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 1 [2021-11-21 01:23:15,316 INFO L354 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2021-11-21 01:23:15,316 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 240 treesize of output 212 [2021-11-21 01:23:15,476 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-21 01:23:15,497 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-11-21 01:23:15,533 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-21 01:23:15,534 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 25 treesize of output 24 [2021-11-21 01:23:15,555 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-21 01:23:15,555 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 25 treesize of output 24 [2021-11-21 01:23:15,567 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 1 [2021-11-21 01:23:15,576 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 1 [2021-11-21 01:23:15,607 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 1 [2021-11-21 01:23:15,612 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 1 [2021-11-21 01:23:15,683 INFO L354 Elim1Store]: treesize reduction 149, result has 21.6 percent of original size [2021-11-21 01:23:15,684 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 121 treesize of output 136 [2021-11-21 01:23:15,743 INFO L354 Elim1Store]: treesize reduction 149, result has 21.6 percent of original size [2021-11-21 01:23:15,744 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 130 treesize of output 145 [2021-11-21 01:23:15,942 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-21 01:23:15,943 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 25 treesize of output 24 [2021-11-21 01:23:15,973 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-11-21 01:23:15,973 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 25 treesize of output 24 [2021-11-21 01:23:15,988 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 1 [2021-11-21 01:23:16,002 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 1 [2021-11-21 01:23:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:16,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:16,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:16,669 INFO L354 Elim1Store]: treesize reduction 116, result has 24.2 percent of original size [2021-11-21 01:23:16,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 444 treesize of output 403 [2021-11-21 01:23:16,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:16,711 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:23:16,711 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 400 treesize of output 358 [2021-11-21 01:23:16,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:16,745 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:23:16,745 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 355 treesize of output 289 [2021-11-21 01:23:41,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:41,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:41,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:41,332 INFO L354 Elim1Store]: treesize reduction 116, result has 24.2 percent of original size [2021-11-21 01:23:41,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 444 treesize of output 403 [2021-11-21 01:23:41,360 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:41,372 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:23:41,372 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 400 treesize of output 334 [2021-11-21 01:23:41,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:23:41,404 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:23:41,405 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 331 treesize of output 289 [2021-11-21 01:23:46,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 38 [2021-11-21 01:23:46,604 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 35 treesize of output 34 [2021-11-21 01:23:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:46,959 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:23:46,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 13 [2021-11-21 01:23:47,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:47,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:47,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:47,185 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:23:47,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-11-21 01:23:48,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,019 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:23:48,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 13 [2021-11-21 01:23:48,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:23:48,155 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:23:48,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2021-11-21 01:23:48,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:23:49,000 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:23:49,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 35 [2021-11-21 01:23:49,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:23:49,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 01:24:37,002 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:24:37,260 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 196 [2021-11-21 01:24:37,343 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memcpy with input of size 186 for LOIs