./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc --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 be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:11:35,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:11:35,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:11:35,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:11:35,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:11:35,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:11:35,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:11:35,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:11:35,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:11:35,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:11:35,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:11:35,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:11:35,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:11:35,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:11:35,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:11:35,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:11:35,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:11:35,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:11:35,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:11:35,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:11:35,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:11:35,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:11:35,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:11:35,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:11:35,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:11:35,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:11:35,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:11:35,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:11:35,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:11:35,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:11:35,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:11:35,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:11:35,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:11:35,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:11:35,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:11:35,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:11:35,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:11:35,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:11:35,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:11:35,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:11:35,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:11:35,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:11:35,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:11:35,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:11:35,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:11:35,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:11:35,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:11:35,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:11:35,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:11:35,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:11:35,215 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:11:35,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:11:35,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:11:35,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:11:35,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:11:35,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:11:35,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:11:35,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:11:35,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:11:35,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:11:35,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:11:35,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:11:35,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:11:35,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:35,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:11:35,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:11:35,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:11:35,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:11:35,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:11:35,221 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:11:35,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:11:35,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:11:35,221 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_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be41ee8ace02416f2e9952c11df8cb43e10a04c126211792ad12271f5624b8e0 [2022-11-02 21:11:35,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:11:35,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:11:35,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:11:35,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:11:35,589 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:11:35,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2022-11-02 21:11:35,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/data/0e6d368fb/59fe9ca842f742e88e3bd66fb9bcbabf/FLAG08bde90f8 [2022-11-02 21:11:36,480 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:11:36,480 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i [2022-11-02 21:11:36,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/data/0e6d368fb/59fe9ca842f742e88e3bd66fb9bcbabf/FLAG08bde90f8 [2022-11-02 21:11:37,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/data/0e6d368fb/59fe9ca842f742e88e3bd66fb9bcbabf [2022-11-02 21:11:37,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:11:37,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:11:37,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:37,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:11:37,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:11:37,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:37" (1/1) ... [2022-11-02 21:11:37,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24503244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:37, skipping insertion in model container [2022-11-02 21:11:37,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:11:37" (1/1) ... [2022-11-02 21:11:37,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:11:37,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:11:37,452 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_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2022-11-02 21:11:37,458 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_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2022-11-02 21:11:38,329 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,330 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,331 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,332 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,333 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,349 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,349 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,352 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,352 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,354 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,355 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,356 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,357 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:38,698 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 21:11:38,700 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 21:11:38,701 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 21:11:38,702 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 21:11:38,704 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 21:11:38,705 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 21:11:38,706 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 21:11:38,707 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 21:11:38,708 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 21:11:38,709 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 21:11:38,864 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 21:11:38,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:38,947 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:11:38,987 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_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2022-11-02 21:11:38,988 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_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/sv-benchmarks/c/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2022-11-02 21:11:39,057 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,059 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,059 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,060 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,061 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,076 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,080 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,087 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,088 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,090 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,093 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,093 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,094 WARN L1543 CHandler]: Possible shadowing of function index [2022-11-02 21:11:39,154 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-02 21:11:39,157 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-02 21:11:39,158 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-02 21:11:39,159 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-02 21:11:39,160 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-02 21:11:39,162 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-02 21:11:39,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-02 21:11:39,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-02 21:11:39,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-02 21:11:39,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-02 21:11:39,201 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-02 21:11:39,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:11:39,405 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:11:39,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39 WrapperNode [2022-11-02 21:11:39,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:11:39,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:39,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:11:39,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:11:39,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,547 INFO L138 Inliner]: procedures = 679, calls = 973, calls flagged for inlining = 44, calls inlined = 6, statements flattened = 60 [2022-11-02 21:11:39,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:11:39,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:11:39,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:11:39,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:11:39,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:11:39,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:11:39,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:11:39,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:11:39,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (1/1) ... [2022-11-02 21:11:39,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:11:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:39,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:11:39,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:11:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-02 21:11:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-02 21:11:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-02 21:11:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-02 21:11:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:11:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 21:11:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 21:11:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:11:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:11:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:11:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:11:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:11:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-02 21:11:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-02 21:11:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-02 21:11:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-02 21:11:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 21:11:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 21:11:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:11:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-02 21:11:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-02 21:11:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-02 21:11:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-02 21:11:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:11:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:11:40,054 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:11:40,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:11:40,332 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:11:40,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:11:40,340 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:11:40,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:40 BoogieIcfgContainer [2022-11-02 21:11:40,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:11:40,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:11:40,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:11:40,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:11:40,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:11:37" (1/3) ... [2022-11-02 21:11:40,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817e785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:40, skipping insertion in model container [2022-11-02 21:11:40,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:11:39" (2/3) ... [2022-11-02 21:11:40,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817e785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:11:40, skipping insertion in model container [2022-11-02 21:11:40,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:40" (3/3) ... [2022-11-02 21:11:40,351 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2022-11-02 21:11:40,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:11:40,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:11:40,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:11:40,426 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c2afde5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:11:40,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:11:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-02 21:11:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:11:40,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:40,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:40,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:40,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:40,453 INFO L85 PathProgramCache]: Analyzing trace with hash 26650354, now seen corresponding path program 1 times [2022-11-02 21:11:40,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:40,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965744028] [2022-11-02 21:11:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:11:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 21:11:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:11:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 21:11:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:11:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 21:11:42,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:42,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965744028] [2022-11-02 21:11:42,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965744028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:42,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:42,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-02 21:11:42,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722145920] [2022-11-02 21:11:42,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:42,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-02 21:11:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:42,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-02 21:11:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-02 21:11:42,111 INFO L87 Difference]: Start difference. First operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-02 21:11:42,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:42,899 INFO L93 Difference]: Finished difference Result 127 states and 153 transitions. [2022-11-02 21:11:42,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:11:42,902 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 55 [2022-11-02 21:11:42,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:42,911 INFO L225 Difference]: With dead ends: 127 [2022-11-02 21:11:42,912 INFO L226 Difference]: Without dead ends: 58 [2022-11-02 21:11:42,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2022-11-02 21:11:42,919 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 86 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:42,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 294 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-02 21:11:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-02 21:11:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-02 21:11:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2022-11-02 21:11:42,964 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 55 [2022-11-02 21:11:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:42,966 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2022-11-02 21:11:42,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 6 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-02 21:11:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2022-11-02 21:11:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-02 21:11:42,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:42,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:11:42,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1047718708, now seen corresponding path program 1 times [2022-11-02 21:11:42,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:42,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611818733] [2022-11-02 21:11:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:42,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:11:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 21:11:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:11:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 21:11:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:11:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-02 21:11:43,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:43,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611818733] [2022-11-02 21:11:43,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611818733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:11:43,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:11:43,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-02 21:11:43,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187492281] [2022-11-02 21:11:43,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:11:43,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 21:11:43,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:43,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 21:11:43,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:11:43,957 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:11:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:44,636 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2022-11-02 21:11:44,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:11:44,637 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2022-11-02 21:11:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:44,639 INFO L225 Difference]: With dead ends: 64 [2022-11-02 21:11:44,639 INFO L226 Difference]: Without dead ends: 60 [2022-11-02 21:11:44,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:11:44,640 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 51 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:44,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 253 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:11:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-02 21:11:44,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-02 21:11:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 39 states have internal predecessors, (40), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-02 21:11:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2022-11-02 21:11:44,652 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 55 [2022-11-02 21:11:44,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:44,652 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2022-11-02 21:11:44,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-02 21:11:44,653 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2022-11-02 21:11:44,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-02 21:11:44,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:44,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-02 21:11:44,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:11:44,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:11:44,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:44,656 INFO L85 PathProgramCache]: Analyzing trace with hash -776855734, now seen corresponding path program 1 times [2022-11-02 21:11:44,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:44,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857521169] [2022-11-02 21:11:44,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:44,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:11:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 21:11:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-02 21:11:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-02 21:11:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 21:11:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:11:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:11:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 21:11:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-02 21:11:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 21:11:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:45,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857521169] [2022-11-02 21:11:45,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857521169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:11:45,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39407282] [2022-11-02 21:11:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:45,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:45,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:45,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:45,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:11:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:45,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-02 21:11:45,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:45,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 21:11:49,390 INFO L356 Elim1Store]: treesize reduction 168, result has 24.0 percent of original size [2022-11-02 21:11:49,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 183 [2022-11-02 21:11:49,609 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-02 21:11:49,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-02 21:11:59,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39407282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:59,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:11:59,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 29, 20] total 55 [2022-11-02 21:11:59,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998562609] [2022-11-02 21:11:59,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:59,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-02 21:11:59,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:59,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-02 21:11:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2804, Unknown=0, NotChecked=0, Total=2970 [2022-11-02 21:11:59,070 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-02 21:12:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:00,116 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2022-11-02 21:12:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:12:00,118 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) Word has length 69 [2022-11-02 21:12:00,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:00,121 INFO L225 Difference]: With dead ends: 64 [2022-11-02 21:12:00,121 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 21:12:00,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=207, Invalid=3575, Unknown=0, NotChecked=0, Total=3782 [2022-11-02 21:12:00,128 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:00,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 210 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 444 Invalid, 0 Unknown, 68 Unchecked, 0.6s Time] [2022-11-02 21:12:00,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 21:12:00,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 21:12:00,135 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) [2022-11-02 21:12:00,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 21:12:00,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-11-02 21:12:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:00,138 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 21:12:00,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 40 states have internal predecessors, (105), 16 states have call successors, (28), 6 states have call predecessors, (28), 14 states have return successors, (27), 17 states have call predecessors, (27), 14 states have call successors, (27) [2022-11-02 21:12:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 21:12:00,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 21:12:00,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:12:00,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:12:00,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:12:00,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 21:12:00,421 INFO L899 garLoopResultBuilder]: For program point L6927-1(lines 6927 6929) no Hoare annotation was computed. [2022-11-02 21:12:00,421 INFO L895 garLoopResultBuilder]: At program point L6927(lines 6927 6929) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-02 21:12:00,421 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6926 6931) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-02 21:12:00,422 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6926 6931) no Hoare annotation was computed. [2022-11-02 21:12:00,422 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6926 6931) no Hoare annotation was computed. [2022-11-02 21:12:00,422 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-02 21:12:00,422 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-02 21:12:00,422 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-02 21:12:00,423 INFO L902 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6292 6296) the Hoare annotation is: true [2022-11-02 21:12:00,423 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6292 6296) no Hoare annotation was computed. [2022-11-02 21:12:00,423 INFO L902 garLoopResultBuilder]: At program point L6294(line 6294) the Hoare annotation is: true [2022-11-02 21:12:00,423 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6292 6296) no Hoare annotation was computed. [2022-11-02 21:12:00,423 INFO L902 garLoopResultBuilder]: At program point L6294-1(line 6294) the Hoare annotation is: true [2022-11-02 21:12:00,424 INFO L899 garLoopResultBuilder]: For program point L6294-2(line 6294) no Hoare annotation was computed. [2022-11-02 21:12:00,424 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-02 21:12:00,424 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-02 21:12:00,424 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-02 21:12:00,424 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-02 21:12:00,424 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6933 6935) no Hoare annotation was computed. [2022-11-02 21:12:00,425 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6933 6935) no Hoare annotation was computed. [2022-11-02 21:12:00,425 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6933 6935) the Hoare annotation is: true [2022-11-02 21:12:00,425 INFO L899 garLoopResultBuilder]: For program point L6306-3(line 6306) no Hoare annotation was computed. [2022-11-02 21:12:00,425 INFO L899 garLoopResultBuilder]: For program point L6306-2(line 6306) no Hoare annotation was computed. [2022-11-02 21:12:00,425 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6302 6307) the Hoare annotation is: true [2022-11-02 21:12:00,426 INFO L899 garLoopResultBuilder]: For program point L6306-5(line 6306) no Hoare annotation was computed. [2022-11-02 21:12:00,426 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6302 6307) no Hoare annotation was computed. [2022-11-02 21:12:00,426 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6302 6307) no Hoare annotation was computed. [2022-11-02 21:12:00,426 INFO L899 garLoopResultBuilder]: For program point L6306(line 6306) no Hoare annotation was computed. [2022-11-02 21:12:00,426 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-02 21:12:00,426 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-02 21:12:00,427 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-02 21:12:00,427 INFO L895 garLoopResultBuilder]: At program point L6846(line 6846) the Hoare annotation is: (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) [2022-11-02 21:12:00,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 21:12:00,427 INFO L899 garLoopResultBuilder]: For program point L6854-5(lines 6854 6855) no Hoare annotation was computed. [2022-11-02 21:12:00,427 INFO L899 garLoopResultBuilder]: For program point L7261-2(line 7261) no Hoare annotation was computed. [2022-11-02 21:12:00,428 INFO L899 garLoopResultBuilder]: For program point L7259(lines 7259 7263) no Hoare annotation was computed. [2022-11-02 21:12:00,428 INFO L895 garLoopResultBuilder]: At program point L7261-1(line 7261) the Hoare annotation is: false [2022-11-02 21:12:00,428 INFO L899 garLoopResultBuilder]: For program point L6846-1(line 6846) no Hoare annotation was computed. [2022-11-02 21:12:00,428 INFO L895 garLoopResultBuilder]: At program point L7261(line 7261) the Hoare annotation is: false [2022-11-02 21:12:00,428 INFO L895 garLoopResultBuilder]: At program point L6859(lines 6850 6860) the Hoare annotation is: false [2022-11-02 21:12:00,429 INFO L899 garLoopResultBuilder]: For program point L6851-1(line 6851) no Hoare annotation was computed. [2022-11-02 21:12:00,429 INFO L895 garLoopResultBuilder]: At program point L6851(line 6851) the Hoare annotation is: (and (<= 18446744073709551616 (+ (* 18446744073709551616 (div (+ (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|) 18446744073710786164) 18446744073709551616)) |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~len~1#1|)) (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) (<= 18446744073709551616 (+ |ULTIMATE.start_ensure_string_is_allocated_~len#1| (* 18446744073709551616 (div (+ 18446744073710786164 (* (- 1) |ULTIMATE.start_ensure_string_is_allocated_~len#1|)) 18446744073709551616))))) [2022-11-02 21:12:00,429 INFO L895 garLoopResultBuilder]: At program point L7262(line 7262) the Hoare annotation is: false [2022-11-02 21:12:00,429 INFO L895 garLoopResultBuilder]: At program point L6847(lines 6844 6848) the Hoare annotation is: false [2022-11-02 21:12:00,429 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 21:12:00,430 INFO L895 garLoopResultBuilder]: At program point L7264(line 7264) the Hoare annotation is: (and (not (= |ULTIMATE.start_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ULTIMATE.start_aws_string_bytes_harness_~str~3#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_nondet_length_#res#1.base| 0)) (not (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_#res#1.base| 0))) [2022-11-02 21:12:00,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 21:12:00,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 21:12:00,430 INFO L899 garLoopResultBuilder]: For program point L6845-1(line 6845) no Hoare annotation was computed. [2022-11-02 21:12:00,430 INFO L899 garLoopResultBuilder]: For program point L7262-2(line 7262) no Hoare annotation was computed. [2022-11-02 21:12:00,431 INFO L895 garLoopResultBuilder]: At program point L6845(line 6845) the Hoare annotation is: (= |ULTIMATE.start_ensure_string_is_allocated_bounded_length_~max_size#1| 18446744073710786165) [2022-11-02 21:12:00,431 INFO L895 garLoopResultBuilder]: At program point L7262-1(line 7262) the Hoare annotation is: false [2022-11-02 21:12:00,431 INFO L895 garLoopResultBuilder]: At program point L6839(lines 6837 6842) the Hoare annotation is: false [2022-11-02 21:12:00,431 INFO L895 garLoopResultBuilder]: At program point L6854(line 6854) the Hoare annotation is: false [2022-11-02 21:12:00,431 INFO L899 garLoopResultBuilder]: For program point L6854-3(line 6854) no Hoare annotation was computed. [2022-11-02 21:12:00,431 INFO L895 garLoopResultBuilder]: At program point L6854-2(line 6854) the Hoare annotation is: false [2022-11-02 21:12:00,432 INFO L899 garLoopResultBuilder]: For program point L6854-1(lines 6854 6855) no Hoare annotation was computed. [2022-11-02 21:12:00,432 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-02 21:12:00,432 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-02 21:12:00,432 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-02 21:12:00,432 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-02 21:12:00,433 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-02 21:12:00,433 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-02 21:12:00,436 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-02 21:12:00,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:12:00,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:12:00 BoogieIcfgContainer [2022-11-02 21:12:00,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:12:00,460 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:12:00,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:12:00,460 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:12:00,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:11:40" (3/4) ... [2022-11-02 21:12:00,467 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:12:00,475 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-02 21:12:00,478 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-02 21:12:00,478 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-02 21:12:00,479 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2022-11-02 21:12:00,479 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-02 21:12:00,479 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-02 21:12:00,479 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-02 21:12:00,479 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-02 21:12:00,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-02 21:12:00,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-02 21:12:00,489 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:12:00,489 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:12:00,520 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) [2022-11-02 21:12:00,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:12:00,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:12:00,550 INFO L158 Benchmark]: Toolchain (without parser) took 23511.43ms. Allocated memory was 102.8MB in the beginning and 218.1MB in the end (delta: 115.3MB). Free memory was 60.7MB in the beginning and 117.1MB in the end (delta: -56.4MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,551 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:12:00,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2361.89ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 60.5MB in the beginning and 75.1MB in the end (delta: -14.6MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.87ms. Allocated memory is still 123.7MB. Free memory was 75.1MB in the beginning and 70.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,552 INFO L158 Benchmark]: Boogie Preprocessor took 46.47ms. Allocated memory is still 123.7MB. Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,552 INFO L158 Benchmark]: RCFGBuilder took 744.13ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 81.1MB in the end (delta: -13.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,553 INFO L158 Benchmark]: TraceAbstraction took 20114.42ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 81.1MB in the beginning and 121.3MB in the end (delta: -40.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,553 INFO L158 Benchmark]: Witness Printer took 90.10ms. Allocated memory is still 218.1MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:12:00,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2361.89ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 60.5MB in the beginning and 75.1MB in the end (delta: -14.6MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.87ms. Allocated memory is still 123.7MB. Free memory was 75.1MB in the beginning and 70.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.47ms. Allocated memory is still 123.7MB. Free memory was 70.4MB in the beginning and 67.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 744.13ms. Allocated memory is still 123.7MB. Free memory was 67.4MB in the beginning and 81.1MB in the end (delta: -13.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20114.42ms. Allocated memory was 123.7MB in the beginning and 218.1MB in the end (delta: 94.4MB). Free memory was 81.1MB in the beginning and 121.3MB in the end (delta: -40.2MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Witness Printer took 90.10ms. Allocated memory is still 218.1MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 9 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.0s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 757 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 68 IncrementalHoareTripleChecker+Unchecked, 641 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1553 IncrementalHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 116 mSDtfsCounter, 1553 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 42 PreInvPairs, 45 NumberOfFragments, 92 HoareAnnotationTreeSize, 42 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 24 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 17 QuantifiedInterpolants, 4927 SizeOfPredicates, 30 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 72/87 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: 7264]: Loop Invariant Derived loop invariant: (((!(\result == 0) && !(str == 0)) && !(str == 0)) && !(\result == 0)) && !(\result == 0) - InvariantResult [Line: 6850]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 6844]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-02 21:12:00,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f20a5c63-bae0-46e2-aae1-e5e09d59fdd2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE