./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa --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 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:55,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:55,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:55,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:55,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:55,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:55,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:55,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:55,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:55,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:55,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:55,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:55,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:55,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:55,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:55,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:55,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:55,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:55,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:55,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:55,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:55,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:55,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:55,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:55,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:55,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:55,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:55,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:55,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:55,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:55,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:55,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:55,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:55,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:55,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:55,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:55,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:55,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:55,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:55,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:55,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:55,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:15:55,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:55,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:55,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:55,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:55,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:55,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:55,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:55,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:55,282 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:55,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:15:55,283 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:55,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:15:55,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:55,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:55,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:55,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:55,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:55,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:15:55,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:55,286 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_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2021-12-06 17:15:55,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:55,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:55,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:55,480 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:55,480 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:55,481 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-06 17:15:55,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/data/fb72c3d23/83c0748360d2453b957d23fb830f1bb2/FLAG6ca46ca05 [2021-12-06 17:15:56,126 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:56,127 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2021-12-06 17:15:56,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/data/fb72c3d23/83c0748360d2453b957d23fb830f1bb2/FLAG6ca46ca05 [2021-12-06 17:15:56,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/data/fb72c3d23/83c0748360d2453b957d23fb830f1bb2 [2021-12-06 17:15:56,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:56,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:56,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:56,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:56,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:56,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:56" (1/1) ... [2021-12-06 17:15:56,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2437b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:56, skipping insertion in model container [2021-12-06 17:15:56,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:56" (1/1) ... [2021-12-06 17:15:56,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:56,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:56,920 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-06 17:15:56,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-06 17:15:57,754 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,754 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,754 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,755 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,756 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,766 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,767 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,768 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:57,768 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,177 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 17:15:58,178 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 17:15:58,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 17:15:58,179 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 17:15:58,180 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 17:15:58,181 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 17:15:58,181 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 17:15:58,182 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 17:15:58,182 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 17:15:58,183 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 17:15:58,366 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 17:15:58,436 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,437 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,694 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,694 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,712 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,713 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,719 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,720 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,732 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,733 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,734 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,735 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:58,811 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:58,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2021-12-06 17:15:58,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2021-12-06 17:15:58,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,851 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,852 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,852 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,857 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,858 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,858 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,859 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,886 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 17:15:58,887 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 17:15:58,887 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 17:15:58,887 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 17:15:58,888 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 17:15:58,888 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 17:15:58,888 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 17:15:58,889 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 17:15:58,889 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 17:15:58,889 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 17:15:58,902 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 17:15:58,949 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:58,949 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,013 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,014 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,018 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,019 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,021 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,026 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,027 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,027 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,027 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,027 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,028 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,028 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 17:15:59,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:59,190 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:59,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59 WrapperNode [2021-12-06 17:15:59,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:59,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:59,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:59,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:59,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,342 INFO L137 Inliner]: procedures = 768, calls = 3257, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 399 [2021-12-06 17:15:59,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:59,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:59,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:59,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:59,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:59,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:59,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:59,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:59,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (1/1) ... [2021-12-06 17:15:59,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:59,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:59,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:59,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-06 17:15:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-06 17:15:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-06 17:15:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:15:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 17:15:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-06 17:15:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:15:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2021-12-06 17:15:59,461 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2021-12-06 17:15:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:15:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-06 17:15:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-06 17:15:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-06 17:15:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-06 17:15:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:15:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2021-12-06 17:15:59,462 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2021-12-06 17:15:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:15:59,629 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:59,631 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:59,908 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2021-12-06 17:15:59,928 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:59,935 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:59,935 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:15:59,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:59 BoogieIcfgContainer [2021-12-06 17:15:59,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:59,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:59,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:59,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:59,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:56" (1/3) ... [2021-12-06 17:15:59,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad67821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:59, skipping insertion in model container [2021-12-06 17:15:59,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:59" (2/3) ... [2021-12-06 17:15:59,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad67821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:59, skipping insertion in model container [2021-12-06 17:15:59,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:59" (3/3) ... [2021-12-06 17:15:59,943 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2021-12-06 17:15:59,947 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:59,947 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:15:59,984 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:59,989 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 [2021-12-06 17:15:59,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:16:00,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-12-06 17:16:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 17:16:00,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:00,014 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:00,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:00,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:00,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1707101443, now seen corresponding path program 1 times [2021-12-06 17:16:00,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:00,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701317051] [2021-12-06 17:16:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:00,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:16:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:16:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:16:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:16:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:16:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:16:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:16:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-06 17:16:00,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:00,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701317051] [2021-12-06 17:16:00,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701317051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:00,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:00,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:16:00,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679351582] [2021-12-06 17:16:00,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:00,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:16:00,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:16:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:16:00,562 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 17:16:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:00,708 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2021-12-06 17:16:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:16:00,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2021-12-06 17:16:00,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:00,717 INFO L225 Difference]: With dead ends: 217 [2021-12-06 17:16:00,717 INFO L226 Difference]: Without dead ends: 104 [2021-12-06 17:16:00,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:16:00,723 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 68 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:00,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 182 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:16:00,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-06 17:16:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-12-06 17:16:00,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2021-12-06 17:16:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2021-12-06 17:16:00,760 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2021-12-06 17:16:00,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:00,761 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2021-12-06 17:16:00,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 17:16:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2021-12-06 17:16:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 17:16:00,765 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:00,765 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:00,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:16:00,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash 566240687, now seen corresponding path program 1 times [2021-12-06 17:16:00,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:00,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550168716] [2021-12-06 17:16:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:00,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:16:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:16:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:16:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:16:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:16:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:16:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:16:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 17:16:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 17:16:01,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550168716] [2021-12-06 17:16:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550168716] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:16:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35158252] [2021-12-06 17:16:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:01,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:01,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:16:01,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:16:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:01,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 17:16:01,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-06 17:16:01,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:01,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35158252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:01,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:16:01,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 24 [2021-12-06 17:16:01,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324623325] [2021-12-06 17:16:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:01,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:16:01,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:01,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:16:01,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2021-12-06 17:16:01,831 INFO L87 Difference]: Start difference. First operand 104 states and 132 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-06 17:16:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:02,058 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2021-12-06 17:16:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 17:16:02,058 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) Word has length 96 [2021-12-06 17:16:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:02,060 INFO L225 Difference]: With dead ends: 192 [2021-12-06 17:16:02,060 INFO L226 Difference]: Without dead ends: 144 [2021-12-06 17:16:02,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=843, Unknown=0, NotChecked=0, Total=930 [2021-12-06 17:16:02,063 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:02,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1497 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:16:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-12-06 17:16:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2021-12-06 17:16:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 73 states have internal predecessors, (85), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-06 17:16:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 152 transitions. [2021-12-06 17:16:02,092 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 152 transitions. Word has length 96 [2021-12-06 17:16:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:02,092 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 152 transitions. [2021-12-06 17:16:02,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 6 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 8 states have call predecessors, (14), 6 states have call successors, (14) [2021-12-06 17:16:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 152 transitions. [2021-12-06 17:16:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 17:16:02,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:02,095 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:02,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:02,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:02,296 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:02,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash 18133626, now seen corresponding path program 1 times [2021-12-06 17:16:02,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:02,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625921084] [2021-12-06 17:16:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:02,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:16:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:16:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:16:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:16:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:16:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:16:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:16:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:16:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 17:16:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-06 17:16:02,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:02,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625921084] [2021-12-06 17:16:02,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625921084] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:16:02,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85710331] [2021-12-06 17:16:02,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:02,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:02,833 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:16:02,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:16:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:02,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 29 conjunts are in the unsatisfiable core [2021-12-06 17:16:02,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-06 17:16:03,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:16:03,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85710331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:03,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:16:03,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2021-12-06 17:16:03,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313073077] [2021-12-06 17:16:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:03,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 17:16:03,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:03,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 17:16:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2021-12-06 17:16:03,286 INFO L87 Difference]: Start difference. First operand 117 states and 152 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-06 17:16:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:03,544 INFO L93 Difference]: Finished difference Result 209 states and 275 transitions. [2021-12-06 17:16:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 17:16:03,544 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) Word has length 105 [2021-12-06 17:16:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:03,547 INFO L225 Difference]: With dead ends: 209 [2021-12-06 17:16:03,548 INFO L226 Difference]: Without dead ends: 174 [2021-12-06 17:16:03,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2021-12-06 17:16:03,550 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 151 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:03,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 1597 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:16:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-12-06 17:16:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2021-12-06 17:16:03,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 78 states have internal predecessors, (90), 37 states have call successors, (37), 10 states have call predecessors, (37), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2021-12-06 17:16:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2021-12-06 17:16:03,571 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 105 [2021-12-06 17:16:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:03,572 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2021-12-06 17:16:03,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 11 states have internal predecessors, (45), 6 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 8 states have call predecessors, (15), 6 states have call successors, (15) [2021-12-06 17:16:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2021-12-06 17:16:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 17:16:03,575 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:03,575 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:03,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:16:03,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:03,777 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:03,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:03,778 INFO L85 PathProgramCache]: Analyzing trace with hash 864229612, now seen corresponding path program 1 times [2021-12-06 17:16:03,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:03,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681647762] [2021-12-06 17:16:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:03,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:03,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:16:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:16:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:16:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:16:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 17:16:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 17:16:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 17:16:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 17:16:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 17:16:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-06 17:16:04,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:04,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681647762] [2021-12-06 17:16:04,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681647762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:16:04,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:16:04,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:16:04,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90877100] [2021-12-06 17:16:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:16:04,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:16:04,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:16:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:16:04,150 INFO L87 Difference]: Start difference. First operand 125 states and 163 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 17:16:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:04,428 INFO L93 Difference]: Finished difference Result 213 states and 279 transitions. [2021-12-06 17:16:04,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 17:16:04,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 106 [2021-12-06 17:16:04,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:04,431 INFO L225 Difference]: With dead ends: 213 [2021-12-06 17:16:04,432 INFO L226 Difference]: Without dead ends: 160 [2021-12-06 17:16:04,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:16:04,433 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 82 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:04,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 518 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:16:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-06 17:16:04,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2021-12-06 17:16:04,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 75 states have (on average 1.16) internal successors, (87), 76 states have internal predecessors, (87), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-12-06 17:16:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2021-12-06 17:16:04,452 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 106 [2021-12-06 17:16:04,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:04,453 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2021-12-06 17:16:04,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2021-12-06 17:16:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2021-12-06 17:16:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 17:16:04,456 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:16:04,456 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:16:04,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:16:04,456 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:16:04,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash -704073469, now seen corresponding path program 1 times [2021-12-06 17:16:04,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:04,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811878732] [2021-12-06 17:16:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:04,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:16:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 17:16:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 17:16:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:16:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:16:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:16:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 17:16:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 17:16:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:16:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 17:16:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:16:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:05,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 17:16:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-06 17:16:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-06 17:16:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-06 17:16:05,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:05,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811878732] [2021-12-06 17:16:05,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811878732] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:16:05,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530817634] [2021-12-06 17:16:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:05,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:05,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:05,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:16:05,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 17:16:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:05,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-06 17:16:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-12-06 17:16:05,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:16:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-12-06 17:16:05,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530817634] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:16:05,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:16:05,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 27 [2021-12-06 17:16:05,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793680477] [2021-12-06 17:16:05,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:16:05,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-06 17:16:05,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:05,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-06 17:16:05,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=646, Unknown=0, NotChecked=0, Total=702 [2021-12-06 17:16:05,605 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-06 17:16:05,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:05,984 INFO L93 Difference]: Finished difference Result 155 states and 192 transitions. [2021-12-06 17:16:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:16:05,984 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2021-12-06 17:16:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:16:05,984 INFO L225 Difference]: With dead ends: 155 [2021-12-06 17:16:05,985 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:16:05,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=1340, Unknown=0, NotChecked=0, Total=1482 [2021-12-06 17:16:05,987 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 58 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 17:16:05,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 364 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 17:16:05,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:16:05,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:16:05,988 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) [2021-12-06 17:16:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:16:05,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 130 [2021-12-06 17:16:05,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:16:05,988 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:16:05,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.28) internal successors, (82), 20 states have internal predecessors, (82), 11 states have call successors, (34), 4 states have call predecessors, (34), 7 states have return successors, (33), 14 states have call predecessors, (33), 11 states have call successors, (33) [2021-12-06 17:16:05,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:16:05,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:16:05,991 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:16:06,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 17:16:06,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:06,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:16:06,332 INFO L854 garLoopResultBuilder]: At program point L6814(line 6814) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 17:16:06,332 INFO L858 garLoopResultBuilder]: For program point L6815-1(line 6815) no Hoare annotation was computed. [2021-12-06 17:16:06,332 INFO L854 garLoopResultBuilder]: At program point L6815(line 6815) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 17:16:06,332 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6813 6817) no Hoare annotation was computed. [2021-12-06 17:16:06,332 INFO L858 garLoopResultBuilder]: For program point L6814-1(line 6814) no Hoare annotation was computed. [2021-12-06 17:16:06,333 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6813 6817) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 17:16:06,333 INFO L854 garLoopResultBuilder]: At program point L6828(lines 6819 6829) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0))) [2021-12-06 17:16:06,333 INFO L858 garLoopResultBuilder]: For program point L6823-1(lines 6823 6824) no Hoare annotation was computed. [2021-12-06 17:16:06,333 INFO L854 garLoopResultBuilder]: At program point L6823(line 6823) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96))) [2021-12-06 17:16:06,333 INFO L858 garLoopResultBuilder]: For program point L6823-5(lines 6823 6824) no Hoare annotation was computed. [2021-12-06 17:16:06,333 INFO L858 garLoopResultBuilder]: For program point L6820-1(line 6820) no Hoare annotation was computed. [2021-12-06 17:16:06,333 INFO L854 garLoopResultBuilder]: At program point L6820(line 6820) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse0 (let ((.cse1 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616))) (<= (* 18446744073709551616 .cse1) (+ |ensure_string_is_allocated_bounded_length_~len~1#1| (* 18446744073709551616 (div (+ (* |ensure_string_is_allocated_bounded_length_~len~1#1| (- 1)) 95 (* .cse1 18446744073709551616)) 18446744073709551616)))))) (= |old(#valid)| |#valid|) (or .cse0 (<= 0 (+ (* 18446744073709551616 (div (+ 95 (* |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (- 1))) 18446744073709551616)) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|))))) [2021-12-06 17:16:06,334 INFO L858 garLoopResultBuilder]: For program point L6823-3(line 6823) no Hoare annotation was computed. [2021-12-06 17:16:06,334 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6813 6817) no Hoare annotation was computed. [2021-12-06 17:16:06,334 INFO L854 garLoopResultBuilder]: At program point L6823-2(line 6823) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_~max_size#1| 96)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 96))) [2021-12-06 17:16:06,334 INFO L858 garLoopResultBuilder]: For program point L6896-1(lines 6896 6898) no Hoare annotation was computed. [2021-12-06 17:16:06,334 INFO L854 garLoopResultBuilder]: At program point L6896(lines 6896 6898) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-06 17:16:06,334 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6895 6900) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-06 17:16:06,334 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6895 6900) no Hoare annotation was computed. [2021-12-06 17:16:06,334 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6895 6900) no Hoare annotation was computed. [2021-12-06 17:16:06,334 INFO L861 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7686 7706) the Hoare annotation is: true [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point L7690(lines 7687 7706) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7686 7706) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L861 garLoopResultBuilder]: At program point L7688-1(line 7688) the Hoare annotation is: true [2021-12-06 17:16:06,335 INFO L861 garLoopResultBuilder]: At program point L7688(line 7688) the Hoare annotation is: true [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7686 7706) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point L7699(lines 7699 7703) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-06 17:16:06,335 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-06 17:16:06,335 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validFINAL(lines 6263 6273) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L861 garLoopResultBuilder]: At program point aws_c_string_is_validENTRY(lines 6263 6273) the Hoare annotation is: true [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point aws_c_string_is_validEXIT(lines 6263 6273) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6902 6904) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6902 6904) no Hoare annotation was computed. [2021-12-06 17:16:06,336 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6902 6904) the Hoare annotation is: true [2021-12-06 17:16:06,336 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6253 6258) the Hoare annotation is: true [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point L6257-2(line 6257) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point L6257-3(line 6257) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point L6257(line 6257) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6253 6258) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point L6257-5(line 6257) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6253 6258) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-06 17:16:06,337 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-06 17:16:06,337 INFO L854 garLoopResultBuilder]: At program point L11324(line 11324) the Hoare annotation is: false [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point L11324-1(line 11324) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L861 garLoopResultBuilder]: At program point L11328(line 11328) the Hoare annotation is: true [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point L11060(lines 11060 11064) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point L7113-1(lines 7112 7125) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L854 garLoopResultBuilder]: At program point L7113(line 7113) the Hoare annotation is: false [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:16:06,338 INFO L854 garLoopResultBuilder]: At program point L10805-1(line 10805) the Hoare annotation is: false [2021-12-06 17:16:06,338 INFO L854 garLoopResultBuilder]: At program point L10805(line 10805) the Hoare annotation is: false [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L11317(lines 11317 11327) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L10805-2(line 10805) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L11065(lines 11065 11073) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L854 garLoopResultBuilder]: At program point L11074(line 11074) the Hoare annotation is: false [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L854 garLoopResultBuilder]: At program point L11074-2(lines 11056 11075) the Hoare annotation is: false [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L11074-1(line 11074) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L10806-2(line 10806) no Hoare annotation was computed. [2021-12-06 17:16:06,339 INFO L854 garLoopResultBuilder]: At program point L10810-6(line 10810) the Hoare annotation is: false [2021-12-06 17:16:06,339 INFO L858 garLoopResultBuilder]: For program point L11318-1(line 11318) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L854 garLoopResultBuilder]: At program point L10806-1(line 10806) the Hoare annotation is: false [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L11058(line 11058) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L10810-7(line 10810) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L10810-2(line 10810) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L7123-1(line 7123) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L10810-1(line 10810) no Hoare annotation was computed. [2021-12-06 17:16:06,340 INFO L854 garLoopResultBuilder]: At program point L7123(line 7123) the Hoare annotation is: false [2021-12-06 17:16:06,340 INFO L861 garLoopResultBuilder]: At program point L11318(line 11318) the Hoare annotation is: true [2021-12-06 17:16:06,340 INFO L854 garLoopResultBuilder]: At program point L10806(line 10806) the Hoare annotation is: false [2021-12-06 17:16:06,340 INFO L858 garLoopResultBuilder]: For program point L10810-4(line 10810) no Hoare annotation was computed. [2021-12-06 17:16:06,341 INFO L854 garLoopResultBuilder]: At program point L10810-3(line 10810) the Hoare annotation is: false [2021-12-06 17:16:06,341 INFO L858 garLoopResultBuilder]: For program point L7119-1(line 7119) no Hoare annotation was computed. [2021-12-06 17:16:06,341 INFO L858 garLoopResultBuilder]: For program point L11058-5(line 11058) no Hoare annotation was computed. [2021-12-06 17:16:06,341 INFO L854 garLoopResultBuilder]: At program point L7119(line 7119) the Hoare annotation is: false [2021-12-06 17:16:06,341 INFO L854 garLoopResultBuilder]: At program point L11058-2(line 11058) the Hoare annotation is: false [2021-12-06 17:16:06,341 INFO L854 garLoopResultBuilder]: At program point L10810-9(line 10810) the Hoare annotation is: false [2021-12-06 17:16:06,341 INFO L854 garLoopResultBuilder]: At program point L11058-4(line 11058) the Hoare annotation is: false [2021-12-06 17:16:06,341 INFO L858 garLoopResultBuilder]: For program point L11058-3(line 11058) no Hoare annotation was computed. [2021-12-06 17:16:06,341 INFO L858 garLoopResultBuilder]: For program point L11323(lines 11323 11326) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L854 garLoopResultBuilder]: At program point L11319-3(line 11319) the Hoare annotation is: false [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L11319-5(line 11319) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L11319-4(line 11319) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L11059(line 11059) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L854 garLoopResultBuilder]: At program point L10803(lines 10803 10811) the Hoare annotation is: false [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L11319-1(line 11319) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L854 garLoopResultBuilder]: At program point L11319(line 11319) the Hoare annotation is: false [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L7120-1(lines 7120 7122) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L854 garLoopResultBuilder]: At program point L7120(lines 7120 7122) the Hoare annotation is: false [2021-12-06 17:16:06,342 INFO L858 garLoopResultBuilder]: For program point L11059-3(line 11059) no Hoare annotation was computed. [2021-12-06 17:16:06,342 INFO L854 garLoopResultBuilder]: At program point L11059-2(line 11059) the Hoare annotation is: false [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point L11059-5(line 11059) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L854 garLoopResultBuilder]: At program point L11059-4(line 11059) the Hoare annotation is: false [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point L7112(lines 7112 7125) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-06 17:16:06,343 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-06 17:16:06,346 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 17:16:06,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:16:06,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:16:06 BoogieIcfgContainer [2021-12-06 17:16:06,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:16:06,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:16:06,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:16:06,360 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:16:06,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:59" (3/4) ... [2021-12-06 17:16:06,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:16:06,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-06 17:16:06,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-06 17:16:06,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2021-12-06 17:16:06,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-06 17:16:06,369 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-06 17:16:06,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 17:16:06,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 17:16:06,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_c_string_is_valid [2021-12-06 17:16:06,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-06 17:16:06,370 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-06 17:16:06,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-12-06 17:16:06,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-12-06 17:16:06,382 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:16:06,383 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:16:06,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(max_size) == max_size || max_size == 96) && !(str == 0)) && !(\old(max_size) == 96)) && !(\result == 0) [2021-12-06 17:16:06,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:16:06,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:16:06,533 INFO L158 Benchmark]: Toolchain (without parser) took 9947.61ms. Allocated memory was 123.7MB in the beginning and 232.8MB in the end (delta: 109.1MB). Free memory was 69.5MB in the beginning and 147.8MB in the end (delta: -78.3MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,534 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:06,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2601.95ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 69.2MB in the beginning and 52.3MB in the end (delta: 16.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.60ms. Allocated memory is still 159.4MB. Free memory was 52.3MB in the beginning and 88.3MB in the end (delta: -36.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,534 INFO L158 Benchmark]: Boogie Preprocessor took 57.93ms. Allocated memory is still 159.4MB. Free memory was 88.3MB in the beginning and 83.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,534 INFO L158 Benchmark]: RCFGBuilder took 535.54ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 83.2MB in the beginning and 127.2MB in the end (delta: -44.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,535 INFO L158 Benchmark]: TraceAbstraction took 6421.12ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 127.2MB in the beginning and 97.6MB in the end (delta: 29.7MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,535 INFO L158 Benchmark]: Witness Printer took 173.28ms. Allocated memory is still 232.8MB. Free memory was 97.6MB in the beginning and 147.8MB in the end (delta: -50.2MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2021-12-06 17:16:06,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2601.95ms. Allocated memory was 123.7MB in the beginning and 159.4MB in the end (delta: 35.7MB). Free memory was 69.2MB in the beginning and 52.3MB in the end (delta: 16.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.60ms. Allocated memory is still 159.4MB. Free memory was 52.3MB in the beginning and 88.3MB in the end (delta: -36.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.93ms. Allocated memory is still 159.4MB. Free memory was 88.3MB in the beginning and 83.2MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 535.54ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 83.2MB in the beginning and 127.2MB in the end (delta: -44.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6421.12ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 127.2MB in the beginning and 97.6MB in the end (delta: 29.7MB). Peak memory consumption was 68.5MB. Max. memory is 16.1GB. * Witness Printer took 173.28ms. Allocated memory is still 232.8MB. Free memory was 97.6MB in the beginning and 147.8MB in the end (delta: -50.2MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 5, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 524 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 472 mSDsluCounter, 4158 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3580 mSDsCounter, 274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 999 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 274 mSolverCounterUnsat, 578 mSDtfsCounter, 999 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 695 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 114 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 155 PreInvPairs, 163 NumberOfFragments, 244 HoareAnnotationTreeSize, 155 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 42 FomulaSimplificationsInter, 218 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 982 ConstructedInterpolants, 0 QuantifiedInterpolants, 2072 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2896 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 819/909 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 1 specifications checked. All of them hold - InvariantResult [Line: 6819]: Loop Invariant Derived loop invariant: (((\old(max_size) == max_size || max_size == 96) && !(str == 0)) && !(\old(max_size) == 96)) && !(\result == 0) - InvariantResult [Line: 10803]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11056]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 10810]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 11328]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 17:16:06,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bbe1255-6b66-4df1-90d7-7774d8c16354/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE