./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:36:43,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:36:43,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:36:43,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:36:43,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:36:43,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:36:43,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:36:43,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:36:43,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:36:43,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:36:43,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:36:43,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:36:43,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:36:43,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:36:43,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:36:43,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:36:43,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:36:43,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:36:43,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:36:43,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:36:43,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:36:43,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:36:43,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:36:43,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:36:43,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:36:43,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:36:43,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:36:43,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:36:43,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:36:43,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:36:43,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:36:43,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:36:43,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:36:43,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:36:43,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:36:43,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:36:43,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:36:43,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:36:43,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:36:43,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:36:43,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:36:43,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-28 23:36:43,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:36:43,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:36:43,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:36:43,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:36:43,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:36:43,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:36:43,273 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:36:43,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:36:43,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:36:43,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:36:43,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:36:43,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:36:43,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:36:43,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:36:43,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:36:43,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:36:43,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:36:43,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:36:43,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:36:43,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:36:43,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:36:43,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:36:43,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:36:43,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:36:43,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:36:43,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:36:43,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:36:43,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:36:43,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:36:43,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c58e2434ae79fdf5f8dceab88ea2b6ad3f1a1a8bb44e2d930eaf759f64b3d29 [2021-10-28 23:36:43,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:36:43,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:36:43,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:36:43,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:36:43,606 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:36:43,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-10-28 23:36:43,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/data/d82f96b62/8e92f675e67142f3ad83fb0b672fbc2f/FLAG9e2ebbda1 [2021-10-28 23:36:44,775 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:36:44,776 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i [2021-10-28 23:36:44,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/data/d82f96b62/8e92f675e67142f3ad83fb0b672fbc2f/FLAG9e2ebbda1 [2021-10-28 23:36:45,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/data/d82f96b62/8e92f675e67142f3ad83fb0b672fbc2f [2021-10-28 23:36:45,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:36:45,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:36:45,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:45,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:36:45,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:36:45,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:45" (1/1) ... [2021-10-28 23:36:45,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f10974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:45, skipping insertion in model container [2021-10-28 23:36:45,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:36:45" (1/1) ... [2021-10-28 23:36:45,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:36:45,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:36:45,729 WARN L228 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_4efc94fb-2d95-4bda-8211-343078c61a0c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-10-28 23:36:45,741 WARN L228 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_4efc94fb-2d95-4bda-8211-343078c61a0c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-10-28 23:36:45,781 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:36:45,799 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:36:47,094 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,095 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,096 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,097 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,098 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,123 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,124 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,126 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,127 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:47,656 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:36:47,658 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:36:47,661 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:36:47,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:36:47,679 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:36:47,690 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:36:47,691 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:36:47,692 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:36:47,693 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:36:47,694 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:36:47,962 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:36:48,138 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,139 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:48,280 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:36:48,312 WARN L228 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_4efc94fb-2d95-4bda-8211-343078c61a0c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4499,4512] [2021-10-28 23:36:48,313 WARN L228 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_4efc94fb-2d95-4bda-8211-343078c61a0c/sv-benchmarks/c/aws-c-common/aws_string_eq_ignore_case_harness.i[4559,4572] [2021-10-28 23:36:48,315 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-10-28 23:36:48,316 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-10-28 23:36:48,398 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,399 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,399 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,400 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,400 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,408 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,408 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,409 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,410 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-10-28 23:36:48,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-10-28 23:36:48,449 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-10-28 23:36:48,450 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-10-28 23:36:48,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-10-28 23:36:48,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-10-28 23:36:48,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-10-28 23:36:48,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-10-28 23:36:48,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-10-28 23:36:48,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-10-28 23:36:48,492 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-10-28 23:36:48,612 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,612 WARN L1513 CHandler]: Possible shadowing of function index [2021-10-28 23:36:48,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:36:49,012 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:36:49,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49 WrapperNode [2021-10-28 23:36:49,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:36:49,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:49,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:36:49,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:36:49,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:36:49,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:36:49,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:36:49,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:36:49,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:36:49,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:36:49,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:36:49,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:36:49,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (1/1) ... [2021-10-28 23:36:49,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:36:49,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:36:49,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:36:49,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:36:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:36:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:36:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-28 23:36:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:36:49,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:36:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:36:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-28 23:36:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:36:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:36:50,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:36:50,767 INFO L299 CfgBuilder]: Removed 71 assume(true) statements. [2021-10-28 23:36:50,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:50 BoogieIcfgContainer [2021-10-28 23:36:50,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:36:50,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:36:50,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:36:50,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:36:50,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:36:45" (1/3) ... [2021-10-28 23:36:50,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e94206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:36:50, skipping insertion in model container [2021-10-28 23:36:50,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:36:49" (2/3) ... [2021-10-28 23:36:50,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e94206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:36:50, skipping insertion in model container [2021-10-28 23:36:50,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:50" (3/3) ... [2021-10-28 23:36:50,784 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_eq_ignore_case_harness.i [2021-10-28 23:36:50,791 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:36:50,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 23:36:50,849 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:36:50,856 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=PETRI_NET, 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 [2021-10-28 23:36:50,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 23:36:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:36:50,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:50,885 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:50,886 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:50,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:50,893 INFO L85 PathProgramCache]: Analyzing trace with hash 690694871, now seen corresponding path program 1 times [2021-10-28 23:36:50,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:50,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132646291] [2021-10-28 23:36:50,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:50,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:51,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:51,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132646291] [2021-10-28 23:36:51,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132646291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:51,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:51,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:36:51,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673827128] [2021-10-28 23:36:51,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:36:51,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:51,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:36:51,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:36:51,475 INFO L87 Difference]: Start difference. First operand has 92 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 91 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:51,509 INFO L93 Difference]: Finished difference Result 178 states and 240 transitions. [2021-10-28 23:36:51,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:36:51,511 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 23:36:51,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:51,521 INFO L225 Difference]: With dead ends: 178 [2021-10-28 23:36:51,521 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 23:36:51,525 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:36:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 23:36:51,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 23:36:51,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 86 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2021-10-28 23:36:51,570 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 29 [2021-10-28 23:36:51,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:51,571 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2021-10-28 23:36:51,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:51,571 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2021-10-28 23:36:51,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 23:36:51,573 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:51,573 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:51,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:36:51,574 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:51,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash -72208045, now seen corresponding path program 1 times [2021-10-28 23:36:51,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:51,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784150403] [2021-10-28 23:36:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:51,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:51,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:51,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:51,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784150403] [2021-10-28 23:36:51,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784150403] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:51,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:51,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:36:51,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824600437] [2021-10-28 23:36:51,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:36:51,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:36:51,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:36:51,879 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:52,088 INFO L93 Difference]: Finished difference Result 223 states and 281 transitions. [2021-10-28 23:36:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:36:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-28 23:36:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:52,090 INFO L225 Difference]: With dead ends: 223 [2021-10-28 23:36:52,090 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 23:36:52,092 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:36:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 23:36:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 23:36:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2380952380952381) internal successors, (104), 86 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2021-10-28 23:36:52,115 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 29 [2021-10-28 23:36:52,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:52,116 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2021-10-28 23:36:52,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,116 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2021-10-28 23:36:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 23:36:52,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:52,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:52,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:36:52,119 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:52,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1845709935, now seen corresponding path program 1 times [2021-10-28 23:36:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:52,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568509376] [2021-10-28 23:36:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:52,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:52,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:52,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:52,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568509376] [2021-10-28 23:36:52,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568509376] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:52,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:52,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:36:52,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030631815] [2021-10-28 23:36:52,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:36:52,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:52,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:36:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:36:52,456 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:52,905 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2021-10-28 23:36:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:36:52,906 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-28 23:36:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:52,907 INFO L225 Difference]: With dead ends: 125 [2021-10-28 23:36:52,908 INFO L226 Difference]: Without dead ends: 88 [2021-10-28 23:36:52,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-10-28 23:36:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-28 23:36:52,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2021-10-28 23:36:52,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 86 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2021-10-28 23:36:52,919 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 40 [2021-10-28 23:36:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:52,920 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2021-10-28 23:36:52,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2021-10-28 23:36:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-28 23:36:52,922 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:52,922 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:52,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 23:36:52,923 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:52,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1247248327, now seen corresponding path program 1 times [2021-10-28 23:36:52,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:52,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251525109] [2021-10-28 23:36:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:52,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:53,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:53,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251525109] [2021-10-28 23:36:53,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251525109] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:53,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:53,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-28 23:36:53,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208519544] [2021-10-28 23:36:53,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:36:53,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:53,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:36:53,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:36:53,151 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:53,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:53,379 INFO L93 Difference]: Finished difference Result 133 states and 159 transitions. [2021-10-28 23:36:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:36:53,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-28 23:36:53,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:53,382 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:36:53,384 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 23:36:53,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:36:53,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 23:36:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 23:36:53,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.2142857142857142) internal successors, (102), 86 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:53,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2021-10-28 23:36:53,402 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 45 [2021-10-28 23:36:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:53,403 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2021-10-28 23:36:53,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2021-10-28 23:36:53,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 23:36:53,406 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:53,407 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:53,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 23:36:53,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 725061795, now seen corresponding path program 1 times [2021-10-28 23:36:53,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:53,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813455618] [2021-10-28 23:36:53,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:53,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:53,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:53,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813455618] [2021-10-28 23:36:53,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813455618] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:53,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:53,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-28 23:36:53,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285109404] [2021-10-28 23:36:53,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 23:36:53,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:36:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:36:53,661 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:54,037 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2021-10-28 23:36:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:36:54,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-28 23:36:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:54,039 INFO L225 Difference]: With dead ends: 137 [2021-10-28 23:36:54,040 INFO L226 Difference]: Without dead ends: 87 [2021-10-28 23:36:54,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:36:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-28 23:36:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-28 23:36:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 86 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2021-10-28 23:36:54,049 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 50 [2021-10-28 23:36:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:54,050 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2021-10-28 23:36:54,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2021-10-28 23:36:54,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-28 23:36:54,052 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:36:54,052 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:36:54,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 23:36:54,053 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:36:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:36:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash 584513185, now seen corresponding path program 1 times [2021-10-28 23:36:54,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:36:54,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044739758] [2021-10-28 23:36:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:36:54,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:36:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:36:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:36:54,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:36:54,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044739758] [2021-10-28 23:36:54,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044739758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:36:54,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:36:54,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:36:54,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394416626] [2021-10-28 23:36:54,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:36:54,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:36:54,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:36:54,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:36:54,333 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:36:54,382 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2021-10-28 23:36:54,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:36:54,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-28 23:36:54,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:36:54,383 INFO L225 Difference]: With dead ends: 87 [2021-10-28 23:36:54,383 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:36:54,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:36:54,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:36:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:36:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:36:54,385 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2021-10-28 23:36:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:36:54,386 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:36:54,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:36:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:36:54,386 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:36:54,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:36:54,389 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:36:54,390 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:36:54,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 23:36:54,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:36:54,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:36:54,539 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,539 INFO L853 garLoopResultBuilder]: At program point L8013(lines 7986 8016) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 23:36:54,539 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:36:54,539 INFO L853 garLoopResultBuilder]: At program point L6891-1(lines 6890 6892) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,539 INFO L853 garLoopResultBuilder]: At program point L6891(lines 6890 6892) the Hoare annotation is: false [2021-10-28 23:36:54,539 INFO L860 garLoopResultBuilder]: At program point L8925(line 8925) the Hoare annotation is: true [2021-10-28 23:36:54,540 INFO L853 garLoopResultBuilder]: At program point L7455(lines 7437 7456) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L6811(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L6811-5(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L6811-3(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L6811-2(lines 6811 6812) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L7439(line 7439) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L7439-2(line 7439) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:36:54,540 INFO L857 garLoopResultBuilder]: For program point L222-1(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L7440-2(line 7440) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L7440(line 7440) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,541 INFO L857 garLoopResultBuilder]: For program point L223-3(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point L223-7(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point L7441(lines 7441 7445) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point L8911(lines 8911 8924) no Hoare annotation was computed. [2021-10-28 23:36:54,542 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,543 INFO L857 garLoopResultBuilder]: For program point L8912(lines 8912 8913) no Hoare annotation was computed. [2021-10-28 23:36:54,543 INFO L857 garLoopResultBuilder]: For program point L8912-2(lines 8912 8913) no Hoare annotation was computed. [2021-10-28 23:36:54,543 INFO L853 garLoopResultBuilder]: At program point L8005-3(lines 8005 8011) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 23:36:54,543 INFO L857 garLoopResultBuilder]: For program point L8005-2(lines 8005 8011) no Hoare annotation was computed. [2021-10-28 23:36:54,543 INFO L853 garLoopResultBuilder]: At program point L6816-1(lines 6807 6817) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,543 INFO L853 garLoopResultBuilder]: At program point L6816(lines 6807 6817) the Hoare annotation is: false [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L8005-4(lines 8005 8011) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L210-2(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L210-3(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,544 INFO L857 garLoopResultBuilder]: For program point L210-4(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L210-5(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L210-6(lines 210 212) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L210-7(lines 7997 8001) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L8006(lines 8006 8010) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L211-4(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,545 INFO L857 garLoopResultBuilder]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,546 INFO L857 garLoopResultBuilder]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,546 INFO L857 garLoopResultBuilder]: For program point L211-10(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,546 INFO L857 garLoopResultBuilder]: For program point L211-12(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,546 INFO L860 garLoopResultBuilder]: At program point L261(line 261) the Hoare annotation is: true [2021-10-28 23:36:54,546 INFO L857 garLoopResultBuilder]: For program point L211-14(line 211) no Hoare annotation was computed. [2021-10-28 23:36:54,546 INFO L853 garLoopResultBuilder]: At program point L261-1(line 261) the Hoare annotation is: false [2021-10-28 23:36:54,547 INFO L853 garLoopResultBuilder]: At program point L261-2(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,547 INFO L853 garLoopResultBuilder]: At program point L261-3(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,547 INFO L853 garLoopResultBuilder]: At program point L261-4(line 261) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,547 INFO L857 garLoopResultBuilder]: For program point L7446(lines 7446 7454) no Hoare annotation was computed. [2021-10-28 23:36:54,547 INFO L857 garLoopResultBuilder]: For program point L8916(lines 8916 8918) no Hoare annotation was computed. [2021-10-28 23:36:54,547 INFO L857 garLoopResultBuilder]: For program point L8916-1(lines 8916 8917) no Hoare annotation was computed. [2021-10-28 23:36:54,547 INFO L857 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L8916-3(lines 8916 8917) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L853 garLoopResultBuilder]: At program point L6257-6(lines 6253 6258) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L6257-7(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L8916-5(lines 8916 8918) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,548 INFO L857 garLoopResultBuilder]: For program point L6257-10(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-9(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-14(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-12(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L853 garLoopResultBuilder]: At program point L6257-13(lines 6253 6258) the Hoare annotation is: (or (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.offset 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_b~1.base 0))) [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-19(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-16(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,549 INFO L857 garLoopResultBuilder]: For program point L6257-17(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,550 INFO L857 garLoopResultBuilder]: For program point L6257-23(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,550 INFO L853 garLoopResultBuilder]: At program point L6257-20(lines 6253 6258) the Hoare annotation is: false [2021-10-28 23:36:54,550 INFO L857 garLoopResultBuilder]: For program point L6257-21(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,550 INFO L857 garLoopResultBuilder]: For program point L6257-26(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,550 INFO L853 garLoopResultBuilder]: At program point L6257-27(lines 6253 6258) the Hoare annotation is: false [2021-10-28 23:36:54,550 INFO L857 garLoopResultBuilder]: For program point L6257-24(line 6257) no Hoare annotation was computed. [2021-10-28 23:36:54,550 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:36:54,551 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-10-28 23:36:54,551 INFO L853 garLoopResultBuilder]: At program point L6804-1(lines 6801 6805) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,551 INFO L853 garLoopResultBuilder]: At program point L6804(lines 6801 6805) the Hoare annotation is: false [2021-10-28 23:36:54,551 INFO L853 garLoopResultBuilder]: At program point L6887-1(lines 6883 6888) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,551 INFO L853 garLoopResultBuilder]: At program point L6887(lines 6883 6888) the Hoare annotation is: false [2021-10-28 23:36:54,551 INFO L857 garLoopResultBuilder]: For program point L8919(lines 8919 8923) no Hoare annotation was computed. [2021-10-28 23:36:54,551 INFO L853 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: (= 16 ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size) [2021-10-28 23:36:54,552 INFO L853 garLoopResultBuilder]: At program point L266-1(line 266) the Hoare annotation is: (and (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.base 0) (= ULTIMATE.start_aws_string_eq_ignore_case_harness_~str_a~1.offset 0)) [2021-10-28 23:36:54,555 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-28 23:36:54,556 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:36:54,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:36:54 BoogieIcfgContainer [2021-10-28 23:36:54,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:36:54,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:36:54,576 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:36:54,576 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:36:54,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:36:50" (3/4) ... [2021-10-28 23:36:54,580 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:36:54,604 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2021-10-28 23:36:54,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 23:36:54,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 23:36:54,608 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:36:54,867 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:36:54,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:36:54,869 INFO L168 Benchmark]: Toolchain (without parser) took 9636.86 ms. Allocated memory was 100.7 MB in the beginning and 165.7 MB in the end (delta: 65.0 MB). Free memory was 64.9 MB in the beginning and 65.4 MB in the end (delta: -486.1 kB). Peak memory consumption was 92.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,869 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:36:54,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3780.20 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 47.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 301.68 ms. Allocated memory is still 123.7 MB. Free memory was 47.5 MB in the beginning and 72.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,871 INFO L168 Benchmark]: Boogie Preprocessor took 155.83 ms. Allocated memory is still 123.7 MB. Free memory was 72.9 MB in the beginning and 68.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,871 INFO L168 Benchmark]: RCFGBuilder took 1297.95 ms. Allocated memory is still 123.7 MB. Free memory was 68.6 MB in the beginning and 61.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,871 INFO L168 Benchmark]: TraceAbstraction took 3801.71 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 60.8 MB in the beginning and 70.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,872 INFO L168 Benchmark]: Witness Printer took 292.09 ms. Allocated memory is still 165.7 MB. Free memory was 70.8 MB in the beginning and 65.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:36:54,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3780.20 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 64.7 MB in the beginning and 47.5 MB in the end (delta: 17.2 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 301.68 ms. Allocated memory is still 123.7 MB. Free memory was 47.5 MB in the beginning and 72.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.83 ms. Allocated memory is still 123.7 MB. Free memory was 72.9 MB in the beginning and 68.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1297.95 ms. Allocated memory is still 123.7 MB. Free memory was 68.6 MB in the beginning and 61.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3801.71 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 60.8 MB in the beginning and 70.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 292.09 ms. Allocated memory is still 165.7 MB. Free memory was 70.8 MB in the beginning and 65.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 463 SDtfs, 1484 SDslu, 1548 SDs, 0 SdLazy, 397 SolverSat, 77 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 47 NumberOfFragments, 143 HoareAnnotationTreeSize, 23 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8005]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 8925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 7986]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: 16 == max_size - InvariantResult [Line: 6253]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6807]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6883]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 6801]: Loop Invariant Derived loop invariant: str_a == 0 && str_a == 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7437]: Loop Invariant Derived loop invariant: (str_a == 0 && str_a == 0) || (str_b == 0 && str_b == 0) RESULT: Ultimate proved your program to be correct! [2021-10-28 23:36:54,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4efc94fb-2d95-4bda-8211-343078c61a0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...