./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V --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 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:58:14,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:58:14,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:58:14,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:58:14,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:58:14,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:58:14,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:58:14,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:58:14,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:58:14,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:58:14,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:58:14,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:58:14,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:58:14,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:58:14,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:58:14,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:58:14,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:58:14,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:58:14,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:58:14,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:58:14,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:58:14,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:58:14,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:58:14,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:58:14,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:58:14,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:58:14,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:58:14,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:58:14,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:58:14,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:58:14,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:58:14,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:58:14,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:58:14,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:58:14,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:58:14,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:58:14,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:58:14,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:58:14,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:58:14,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:58:14,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:58:14,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 01:58:14,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:58:14,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:58:14,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:58:14,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:58:14,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:58:14,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:58:14,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:58:14,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:58:14,223 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:58:14,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:58:14,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:58:14,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:58:14,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:58:14,224 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:58:14,225 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:58:14,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:58:14,225 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:58:14,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:58:14,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:58:14,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:58:14,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:58:14,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:58:14,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:58:14,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:58:14,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:58:14,228 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:58:14,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:58:14,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:58:14,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:58:14,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:14,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:58:14,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:58:14,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:58:14,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:58:14,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:58:14,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:58:14,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:58:14,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:58:14,232 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_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376fa3967c5a16dbeae94f1517cf176a2f53d2660c6b5c3d2eeb4fd9f827337c [2021-11-23 01:58:14,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:58:14,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:58:14,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:58:14,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:58:14,621 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:58:14,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-23 01:58:14,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/data/05cf4e071/9adeb795d0cb462ab66ef0a9b6db168e/FLAG77106ab61 [2021-11-23 01:58:15,738 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:58:15,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i [2021-11-23 01:58:15,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/data/05cf4e071/9adeb795d0cb462ab66ef0a9b6db168e/FLAG77106ab61 [2021-11-23 01:58:16,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/data/05cf4e071/9adeb795d0cb462ab66ef0a9b6db168e [2021-11-23 01:58:16,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:58:16,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:58:16,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:16,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:58:16,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:58:16,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:16" (1/1) ... [2021-11-23 01:58:16,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258cb6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:16, skipping insertion in model container [2021-11-23 01:58:16,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:16" (1/1) ... [2021-11-23 01:58:16,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:58:16,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:58:16,739 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_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-23 01:58:16,751 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_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-23 01:58:18,017 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,019 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,020 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,023 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,044 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,045 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,048 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,049 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:18,679 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 01:58:18,681 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 01:58:18,683 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 01:58:18,686 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 01:58:18,693 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 01:58:18,698 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 01:58:18,700 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 01:58:18,705 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 01:58:18,708 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 01:58:18,712 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 01:58:18,969 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 01:58:19,117 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,118 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:19,291 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:58:19,322 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_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4492,4505] [2021-11-23 01:58:19,336 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_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/sv-benchmarks/c/aws-c-common/aws_byte_cursor_eq_harness.i[4552,4565] [2021-11-23 01:58:19,388 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,389 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,390 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,391 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,392 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,403 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,404 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,406 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,407 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,456 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-23 01:58:19,457 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-23 01:58:19,459 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-23 01:58:19,460 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-23 01:58:19,462 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-23 01:58:19,463 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-23 01:58:19,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-23 01:58:19,464 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-23 01:58:19,465 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-23 01:58:19,466 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-23 01:58:19,496 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-23 01:58:19,579 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,580 WARN L1533 CHandler]: Possible shadowing of function index [2021-11-23 01:58:19,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:58:20,049 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:58:20,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20 WrapperNode [2021-11-23 01:58:20,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:58:20,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:20,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:58:20,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:58:20,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,395 INFO L137 Inliner]: procedures = 691, calls = 2650, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 873 [2021-11-23 01:58:20,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:58:20,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:58:20,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:58:20,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:58:20,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:58:20,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:58:20,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:58:20,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:58:20,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (1/1) ... [2021-11-23 01:58:20,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:58:20,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:20,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:58:20,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:58:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-23 01:58:20,678 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-23 01:58:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 01:58:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:58:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-23 01:58:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-23 01:58:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:58:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_bounded [2021-11-23 01:58:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_bounded [2021-11-23 01:58:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:58:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:58:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:58:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:58:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2021-11-23 01:58:20,685 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2021-11-23 01:58:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:58:20,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:58:20,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:58:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-23 01:58:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-23 01:58:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-23 01:58:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-23 01:58:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 01:58:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 01:58:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:58:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:58:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-11-23 01:58:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-11-23 01:58:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:58:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-23 01:58:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-23 01:58:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:58:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-23 01:58:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_cursor_has_allocated_buffer_member [2021-11-23 01:58:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:58:20,993 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:58:20,995 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:58:22,666 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:58:22,852 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:58:22,853 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:58:22,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:22 BoogieIcfgContainer [2021-11-23 01:58:22,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:58:22,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:58:22,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:58:22,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:58:22,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:16" (1/3) ... [2021-11-23 01:58:22,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473646d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:22, skipping insertion in model container [2021-11-23 01:58:22,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:20" (2/3) ... [2021-11-23 01:58:22,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473646d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:22, skipping insertion in model container [2021-11-23 01:58:22,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:22" (3/3) ... [2021-11-23 01:58:22,869 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_eq_harness.i [2021-11-23 01:58:22,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:58:22,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 01:58:22,952 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:58:22,970 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 [2021-11-23 01:58:22,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 01:58:23,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-23 01:58:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-23 01:58:23,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:23,029 INFO L514 BasicCegarLoop]: trace histogram [6, 4, 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] [2021-11-23 01:58:23,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:23,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:23,037 INFO L85 PathProgramCache]: Analyzing trace with hash 7795166, now seen corresponding path program 1 times [2021-11-23 01:58:23,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:23,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311025188] [2021-11-23 01:58:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:23,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-23 01:58:28,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:28,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311025188] [2021-11-23 01:58:28,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311025188] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:58:28,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214496051] [2021-11-23 01:58:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:28,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:58:28,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:28,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:58:28,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:58:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:29,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 111 conjunts are in the unsatisfiable core [2021-11-23 01:58:29,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:58:29,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-23 01:58:29,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 01:58:29,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 01:58:30,856 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 44 treesize of output 26 [2021-11-23 01:58:30,862 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 23 treesize of output 22 [2021-11-23 01:58:30,879 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 44 treesize of output 26 [2021-11-23 01:58:30,886 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 23 treesize of output 22 [2021-11-23 01:58:30,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:58:30,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2021-11-23 01:58:38,079 INFO L354 Elim1Store]: treesize reduction 16, result has 67.3 percent of original size [2021-11-23 01:58:38,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 139 treesize of output 139 [2021-11-23 01:58:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 01:58:38,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:58:38,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214496051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:58:38,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 01:58:38,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [27] total 45 [2021-11-23 01:58:38,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972525750] [2021-11-23 01:58:38,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:58:38,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-23 01:58:38,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:58:38,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-23 01:58:38,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1833, Unknown=0, NotChecked=0, Total=1980 [2021-11-23 01:58:38,314 INFO L87 Difference]: Start difference. First operand has 108 states, 55 states have (on average 1.2) internal successors, (66), 56 states have internal predecessors, (66), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 23 states, 16 states have (on average 1.9375) internal successors, (31), 20 states have internal predecessors, (31), 10 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-23 01:58:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:58:44,790 INFO L93 Difference]: Finished difference Result 240 states and 345 transitions. [2021-11-23 01:58:44,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-23 01:58:44,794 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 16 states have (on average 1.9375) internal successors, (31), 20 states have internal predecessors, (31), 10 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17) Word has length 72 [2021-11-23 01:58:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:58:44,809 INFO L225 Difference]: With dead ends: 240 [2021-11-23 01:58:44,809 INFO L226 Difference]: Without dead ends: 185 [2021-11-23 01:58:44,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 51 SyntacticMatches, 14 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=212, Invalid=2758, Unknown=0, NotChecked=0, Total=2970 [2021-11-23 01:58:44,819 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 80 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 574 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:58:44,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 1914 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 901 Invalid, 0 Unknown, 574 Unchecked, 5.7s Time] [2021-11-23 01:58:44,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-23 01:58:44,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 152. [2021-11-23 01:58:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 75 states have (on average 1.1333333333333333) internal successors, (85), 78 states have internal predecessors, (85), 54 states have call successors, (54), 20 states have call predecessors, (54), 22 states have return successors, (59), 53 states have call predecessors, (59), 53 states have call successors, (59) [2021-11-23 01:58:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2021-11-23 01:58:44,907 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 72 [2021-11-23 01:58:44,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:58:44,908 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2021-11-23 01:58:44,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 16 states have (on average 1.9375) internal successors, (31), 20 states have internal predecessors, (31), 10 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (17), 9 states have call predecessors, (17), 9 states have call successors, (17) [2021-11-23 01:58:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2021-11-23 01:58:44,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-23 01:58:44,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:58:44,914 INFO L514 BasicCegarLoop]: trace histogram [7, 4, 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] [2021-11-23 01:58:44,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:58:45,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-23 01:58:45,128 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:58:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:58:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -2101195727, now seen corresponding path program 1 times [2021-11-23 01:58:45,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:58:45,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674792317] [2021-11-23 01:58:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:45,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:58:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:46,263 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-23 01:58:46,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:58:46,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674792317] [2021-11-23 01:58:46,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674792317] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 01:58:46,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540171311] [2021-11-23 01:58:46,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:58:46,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:58:46,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:58:46,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:58:46,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa76e2ce-40dc-4eb5-b3d1-c2c44bd97661/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 01:58:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:58:46,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 2612 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-23 01:58:46,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:58:47,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 01:58:47,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 01:58:47,564 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 49 treesize of output 45 [2021-11-23 01:58:47,568 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 45 treesize of output 41 [2021-11-23 01:58:47,572 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 41 treesize of output 33 [2021-11-23 01:58:47,576 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 30 treesize of output 22 [2021-11-23 01:58:47,716 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 37 treesize of output 25 [2021-11-23 01:58:47,720 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 22 treesize of output 10 [2021-11-23 01:58:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-23 01:58:47,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:58:48,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 01:58:48,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:58:48,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:58:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-23 01:58:48,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540171311] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 01:58:48,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2117634594] [2021-11-23 01:58:48,763 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2021-11-23 01:58:48,763 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:58:48,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:58:48,776 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:58:48,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:58:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:58:54,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:58:54,871 INFO L244 Elim1Store]: Index analysis took 847 ms [2021-11-23 01:59:56,385 WARN L227 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 2374 DAG size of output: 1385 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 01:59:56,395 INFO L354 Elim1Store]: treesize reduction 4545, result has 34.3 percent of original size [2021-11-23 01:59:56,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 198 select indices, 198 select index equivalence classes, 19507 disjoint index pairs (out of 19503 index pairs), introduced 198 new quantified variables, introduced 198 case distinctions, treesize of input 1000 treesize of output 2974 [2021-11-23 02:00:01,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:00:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:00:04,840 INFO L244 Elim1Store]: Index analysis took 4227 ms [2021-11-23 02:02:00,367 WARN L227 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 3167 DAG size of output: 1583 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:02:00,375 INFO L354 Elim1Store]: treesize reduction 7508, result has 25.5 percent of original size [2021-11-23 02:02:00,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 201 select indices, 201 select index equivalence classes, 19705 disjoint index pairs (out of 20100 index pairs), introduced 201 new quantified variables, introduced 594 case distinctions, treesize of input 1019 treesize of output 3189 [2021-11-23 02:02:04,239 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-23 02:02:04,454 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-23 02:02:04,803 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-23 02:02:05,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:02:05,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:02:05,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:02:05,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:02:05,371 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 61 treesize of output 49 [2021-11-23 02:02:05,467 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 61 treesize of output 49 [2021-11-23 02:02:06,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,431 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 35 treesize of output 23 [2021-11-23 02:02:06,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:06,464 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:02:06,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-23 02:02:06,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,481 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 35 treesize of output 23 [2021-11-23 02:02:06,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:06,511 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-23 02:02:06,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-23 02:02:06,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:02:06,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:02:06,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:06,587 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-23 02:02:06,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 15 [2021-11-23 02:02:06,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:02:06,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:02:06,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:02:06,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:02:06,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:02:06,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:02:06,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:02:06,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:02:06,944 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-23 02:02:06,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 42 [2021-11-23 02:02:06,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:02:07,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,021 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,022 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 26 treesize of output 10 [2021-11-23 02:02:07,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,048 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,049 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 34 treesize of output 10 [2021-11-23 02:02:07,060 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,065 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,065 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 34 treesize of output 10 [2021-11-23 02:02:07,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,219 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,219 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 26 treesize of output 10 [2021-11-23 02:02:07,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,241 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,241 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 34 treesize of output 10 [2021-11-23 02:02:07,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:02:07,277 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 02:02:07,277 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 34 treesize of output 10 [2021-11-23 02:02:07,392 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 02:02:07,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-23 02:02:07,438 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:02:07,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:02:07,565 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 19 treesize of output 7 [2021-11-23 02:02:07,578 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 19 treesize of output 7 [2021-11-23 02:02:07,601 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 15 treesize of output 7 [2021-11-23 02:02:07,716 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 19 treesize of output 7 [2021-11-23 02:02:07,746 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 19 treesize of output 7 [2021-11-23 02:02:07,760 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 15 treesize of output 7 [2021-11-23 02:02:10,074 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-23 02:02:10,267 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 197 [2021-11-23 02:02:10,417 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 68 for LOIs [2021-11-23 02:02:10,448 INFO L197 IcfgInterpreter]: Interpreting procedure ensure_byte_cursor_has_allocated_buffer_member with input of size 103 for LOIs [2021-11-23 02:02:10,714 INFO L197 IcfgInterpreter]: Interpreting procedure nondet_bool with input of size 91 for LOIs [2021-11-23 02:02:10,738 INFO L197 IcfgInterpreter]: Interpreting procedure save_byte_from_array with input of size 162 for LOIs [2021-11-23 02:02:11,817 INFO L354 Elim1Store]: treesize reduction 48, result has 63.1 percent of original size [2021-11-23 02:02:11,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 360 treesize of output 416 [2021-11-23 02:02:12,030 INFO L354 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2021-11-23 02:02:12,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 416 treesize of output 448 [2021-11-23 02:02:12,191 INFO L354 Elim1Store]: treesize reduction 108, result has 39.3 percent of original size [2021-11-23 02:02:12,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 448 treesize of output 480 [2021-11-23 02:02:12,211 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 480 treesize of output 467