./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN --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 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce --- 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-6b4ec56 [2022-11-20 11:02:05,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:02:05,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:02:06,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:02:06,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:02:06,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:02:06,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:02:06,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:02:06,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:02:06,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:02:06,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:02:06,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:02:06,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:02:06,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:02:06,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:02:06,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:02:06,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:02:06,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:02:06,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:02:06,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:02:06,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:02:06,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:02:06,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:02:06,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:02:06,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:02:06,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:02:06,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:02:06,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:02:06,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:02:06,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:02:06,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:02:06,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:02:06,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:02:06,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:02:06,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:02:06,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:02:06,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:02:06,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:02:06,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:02:06,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:02:06,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:02:06,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:02:06,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:02:06,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:02:06,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:02:06,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:02:06,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:02:06,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:02:06,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:02:06,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:02:06,136 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:02:06,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:02:06,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:02:06,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:02:06,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:02:06,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:02:06,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:02:06,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:02:06,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:02:06,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:02:06,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:02:06,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:02:06,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:02:06,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:02:06,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:02:06,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:02:06,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:02:06,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:02:06,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:02:06,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:02:06,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:02:06,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:02:06,142 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_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce [2022-11-20 11:02:06,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:02:06,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:02:06,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:02:06,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:02:06,502 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:02:06,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2022-11-20 11:02:09,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:02:10,270 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:02:10,271 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2022-11-20 11:02:10,321 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/data/d3a6cd53c/5b1c5ec6a2a8460a9a7924118337dbf8/FLAGbb8e20fe7 [2022-11-20 11:02:10,339 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/data/d3a6cd53c/5b1c5ec6a2a8460a9a7924118337dbf8 [2022-11-20 11:02:10,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:02:10,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:02:10,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:02:10,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:02:10,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:02:10,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:10" (1/1) ... [2022-11-20 11:02:10,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5c1bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:10, skipping insertion in model container [2022-11-20 11:02:10,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:10" (1/1) ... [2022-11-20 11:02:10,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:02:10,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:02:10,850 WARN L237 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_29280f1b-9287-4add-90d6-ec91bb634d0a/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2022-11-20 11:02:10,860 WARN L237 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_29280f1b-9287-4add-90d6-ec91bb634d0a/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2022-11-20 11:02:12,015 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,016 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,017 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,018 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,019 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,034 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,035 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,037 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,037 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,560 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 11:02:12,562 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 11:02:12,563 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 11:02:12,564 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 11:02:12,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 11:02:12,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 11:02:12,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 11:02:12,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 11:02:12,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 11:02:12,569 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 11:02:12,843 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 11:02:12,973 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:12,974 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:02:13,178 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:02:13,207 WARN L237 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_29280f1b-9287-4add-90d6-ec91bb634d0a/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2022-11-20 11:02:13,208 WARN L237 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_29280f1b-9287-4add-90d6-ec91bb634d0a/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2022-11-20 11:02:13,261 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,262 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,262 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,263 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,263 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,269 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,269 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,270 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,271 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,310 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 11:02:13,315 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 11:02:13,317 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 11:02:13,318 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 11:02:13,319 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 11:02:13,320 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 11:02:13,320 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 11:02:13,321 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 11:02:13,321 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 11:02:13,322 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 11:02:13,346 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 11:02:13,428 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,428 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 11:02:13,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:02:13,729 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:02:13,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13 WrapperNode [2022-11-20 11:02:13,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:02:13,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:02:13,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:02:13,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:02:13,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,888 INFO L138 Inliner]: procedures = 693, calls = 2791, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 873 [2022-11-20 11:02:13,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:02:13,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:02:13,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:02:13,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:02:13,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:02:13,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:02:13,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:02:13,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:02:13,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (1/1) ... [2022-11-20 11:02:13,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:02:13,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:14,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:02:14,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:02:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-20 11:02:14,063 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-20 11:02:14,063 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-20 11:02:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-20 11:02:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-20 11:02:14,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-20 11:02:14,064 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 11:02:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:02:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 11:02:14,065 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 11:02:14,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:02:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 11:02:14,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 11:02:14,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:02:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:02:14,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:02:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:02:14,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:02:14,068 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 11:02:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 11:02:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:02:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 11:02:14,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 11:02:14,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:02:14,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:02:14,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-20 11:02:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-20 11:02:14,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:02:14,071 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-20 11:02:14,071 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-20 11:02:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 11:02:14,072 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 11:02:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:02:14,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:02:14,450 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:02:14,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:02:16,007 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:02:16,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:02:16,014 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:02:16,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16 BoogieIcfgContainer [2022-11-20 11:02:16,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:02:16,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:02:16,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:02:16,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:02:16,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:02:10" (1/3) ... [2022-11-20 11:02:16,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60755a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:02:16, skipping insertion in model container [2022-11-20 11:02:16,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:13" (2/3) ... [2022-11-20 11:02:16,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60755a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:02:16, skipping insertion in model container [2022-11-20 11:02:16,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16" (3/3) ... [2022-11-20 11:02:16,032 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness.i [2022-11-20 11:02:16,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:02:16,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:02:16,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:02:16,126 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;@4467258a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:02:16,127 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:02:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-20 11:02:16,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:02:16,147 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:16,147 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1] [2022-11-20 11:02:16,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash 39505431, now seen corresponding path program 1 times [2022-11-20 11:02:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:16,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567742453] [2022-11-20 11:02:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:02:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:02:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 11:02:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:17,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567742453] [2022-11-20 11:02:17,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567742453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:17,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:17,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:17,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288962525] [2022-11-20 11:02:17,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:17,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:17,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:17,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:17,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,148 INFO L87 Difference]: Start difference. First operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:02:17,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:17,539 INFO L93 Difference]: Finished difference Result 251 states and 348 transitions. [2022-11-20 11:02:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2022-11-20 11:02:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:17,554 INFO L225 Difference]: With dead ends: 251 [2022-11-20 11:02:17,554 INFO L226 Difference]: Without dead ends: 125 [2022-11-20 11:02:17,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,571 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 57 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:17,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 162 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:02:17,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-20 11:02:17,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-20 11:02:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 83 states have (on average 1.2530120481927711) internal successors, (104), 84 states have internal predecessors, (104), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-20 11:02:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2022-11-20 11:02:17,625 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 71 [2022-11-20 11:02:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:17,627 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2022-11-20 11:02:17,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:02:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2022-11-20 11:02:17,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:02:17,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:17,631 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1] [2022-11-20 11:02:17,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:02:17,631 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:17,632 INFO L85 PathProgramCache]: Analyzing trace with hash 899154193, now seen corresponding path program 1 times [2022-11-20 11:02:17,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:17,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572835569] [2022-11-20 11:02:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-20 11:02:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 11:02:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,623 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 11:02:18,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572835569] [2022-11-20 11:02:18,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572835569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:02:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877165720] [2022-11-20 11:02:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:02:18,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:18,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:02:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:18,627 INFO L87 Difference]: Start difference. First operand 125 states and 165 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:02:19,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:19,105 INFO L93 Difference]: Finished difference Result 211 states and 280 transitions. [2022-11-20 11:02:19,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:02:19,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 71 [2022-11-20 11:02:19,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:19,109 INFO L225 Difference]: With dead ends: 211 [2022-11-20 11:02:19,110 INFO L226 Difference]: Without dead ends: 128 [2022-11-20 11:02:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:02:19,111 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 108 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:19,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 344 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:02:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-20 11:02:19,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-11-20 11:02:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 87 states have internal predecessors, (106), 31 states have call successors, (31), 10 states have call predecessors, (31), 11 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2022-11-20 11:02:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 168 transitions. [2022-11-20 11:02:19,138 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 168 transitions. Word has length 71 [2022-11-20 11:02:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:19,139 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 168 transitions. [2022-11-20 11:02:19,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:02:19,139 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 168 transitions. [2022-11-20 11:02:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 11:02:19,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:19,149 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:19,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:02:19,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:19,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:19,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1350542876, now seen corresponding path program 1 times [2022-11-20 11:02:19,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:19,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12726033] [2022-11-20 11:02:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:19,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:02:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,937 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 11:02:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:19,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12726033] [2022-11-20 11:02:19,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12726033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:19,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:19,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:02:19,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151630834] [2022-11-20 11:02:19,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:19,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:02:19,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:19,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:02:19,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:19,943 INFO L87 Difference]: Start difference. First operand 128 states and 168 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:02:20,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:20,426 INFO L93 Difference]: Finished difference Result 219 states and 291 transitions. [2022-11-20 11:02:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:02:20,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-11-20 11:02:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:20,433 INFO L225 Difference]: With dead ends: 219 [2022-11-20 11:02:20,433 INFO L226 Difference]: Without dead ends: 163 [2022-11-20 11:02:20,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:20,434 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:20,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 319 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:02:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-20 11:02:20,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2022-11-20 11:02:20,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 108 states have internal predecessors, (132), 43 states have call successors, (43), 10 states have call predecessors, (43), 11 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-20 11:02:20,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 219 transitions. [2022-11-20 11:02:20,456 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 219 transitions. Word has length 77 [2022-11-20 11:02:20,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:20,457 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 219 transitions. [2022-11-20 11:02:20,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:02:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 219 transitions. [2022-11-20 11:02:20,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 11:02:20,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:20,459 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:20,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:02:20,459 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:20,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:20,460 INFO L85 PathProgramCache]: Analyzing trace with hash 32555997, now seen corresponding path program 1 times [2022-11-20 11:02:20,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:20,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024775144] [2022-11-20 11:02:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:20,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:02:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:02:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-20 11:02:21,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:21,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024775144] [2022-11-20 11:02:21,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024775144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:21,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:21,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 11:02:21,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427661008] [2022-11-20 11:02:21,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:21,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:02:21,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:21,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:02:21,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:02:21,760 INFO L87 Difference]: Start difference. First operand 161 states and 219 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:22,398 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2022-11-20 11:02:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:02:22,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2022-11-20 11:02:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:22,400 INFO L225 Difference]: With dead ends: 172 [2022-11-20 11:02:22,401 INFO L226 Difference]: Without dead ends: 165 [2022-11-20 11:02:22,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:02:22,402 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 84 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:22,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 648 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:02:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-20 11:02:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-20 11:02:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 109 states have (on average 1.238532110091743) internal successors, (135), 112 states have internal predecessors, (135), 43 states have call successors, (43), 10 states have call predecessors, (43), 12 states have return successors, (48), 42 states have call predecessors, (48), 42 states have call successors, (48) [2022-11-20 11:02:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-11-20 11:02:22,418 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 89 [2022-11-20 11:02:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:22,419 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-11-20 11:02:22,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-11-20 11:02:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:02:22,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:22,421 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:22,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:02:22,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash 581239205, now seen corresponding path program 1 times [2022-11-20 11:02:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:22,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593931852] [2022-11-20 11:02:22,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:22,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:02:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:02:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,571 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 11:02:23,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:23,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593931852] [2022-11-20 11:02:23,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593931852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:23,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:23,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:02:23,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294248990] [2022-11-20 11:02:23,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:23,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:02:23,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:23,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:02:23,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:23,575 INFO L87 Difference]: Start difference. First operand 165 states and 226 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:24,104 INFO L93 Difference]: Finished difference Result 300 states and 420 transitions. [2022-11-20 11:02:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:02:24,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2022-11-20 11:02:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:24,107 INFO L225 Difference]: With dead ends: 300 [2022-11-20 11:02:24,107 INFO L226 Difference]: Without dead ends: 190 [2022-11-20 11:02:24,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:02:24,108 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:24,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 314 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:02:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-20 11:02:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 170. [2022-11-20 11:02:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 114 states have (on average 1.2456140350877194) internal successors, (142), 117 states have internal predecessors, (142), 43 states have call successors, (43), 10 states have call predecessors, (43), 12 states have return successors, (48), 42 states have call predecessors, (48), 42 states have call successors, (48) [2022-11-20 11:02:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 233 transitions. [2022-11-20 11:02:24,125 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 233 transitions. Word has length 93 [2022-11-20 11:02:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:24,125 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 233 transitions. [2022-11-20 11:02:24,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 233 transitions. [2022-11-20 11:02:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:02:24,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:24,127 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:24,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:02:24,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:24,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:24,128 INFO L85 PathProgramCache]: Analyzing trace with hash 839404643, now seen corresponding path program 1 times [2022-11-20 11:02:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:24,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759295477] [2022-11-20 11:02:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:02:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:02:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:02:26,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:26,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759295477] [2022-11-20 11:02:26,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759295477] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:26,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605650452] [2022-11-20 11:02:26,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:26,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:26,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:26,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:26,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:02:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:27,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-20 11:02:27,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:27,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 11:02:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:02:27,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:27,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605650452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:27,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:27,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 20 [2022-11-20 11:02:27,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775324471] [2022-11-20 11:02:27,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:27,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:02:27,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:02:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-20 11:02:27,693 INFO L87 Difference]: Start difference. First operand 170 states and 233 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 11:02:27,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:27,771 INFO L93 Difference]: Finished difference Result 311 states and 423 transitions. [2022-11-20 11:02:27,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:02:27,771 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2022-11-20 11:02:27,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:27,776 INFO L225 Difference]: With dead ends: 311 [2022-11-20 11:02:27,776 INFO L226 Difference]: Without dead ends: 189 [2022-11-20 11:02:27,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:02:27,779 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 32 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:27,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 792 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-20 11:02:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-20 11:02:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2022-11-20 11:02:27,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 132 states have internal predecessors, (163), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (46), 42 states have call predecessors, (46), 42 states have call successors, (46) [2022-11-20 11:02:27,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 252 transitions. [2022-11-20 11:02:27,825 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 252 transitions. Word has length 93 [2022-11-20 11:02:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:27,826 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 252 transitions. [2022-11-20 11:02:27,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 11:02:27,826 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 252 transitions. [2022-11-20 11:02:27,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:02:27,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:27,827 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2022-11-20 11:02:27,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:28,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:28,039 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:28,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2068777243, now seen corresponding path program 1 times [2022-11-20 11:02:28,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:28,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443594554] [2022-11-20 11:02:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-20 11:02:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 11:02:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-20 11:02:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-20 11:02:28,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:28,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443594554] [2022-11-20 11:02:28,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443594554] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:28,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365975820] [2022-11-20 11:02:28,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:28,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:28,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:28,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:28,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:02:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:29,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:29,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 11:02:29,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:29,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365975820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:29,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:29,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-20 11:02:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552353601] [2022-11-20 11:02:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:02:29,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:02:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:29,084 INFO L87 Difference]: Start difference. First operand 186 states and 252 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:29,123 INFO L93 Difference]: Finished difference Result 311 states and 425 transitions. [2022-11-20 11:02:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:02:29,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2022-11-20 11:02:29,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:29,129 INFO L225 Difference]: With dead ends: 311 [2022-11-20 11:02:29,130 INFO L226 Difference]: Without dead ends: 195 [2022-11-20 11:02:29,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:29,132 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:29,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-20 11:02:29,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 178. [2022-11-20 11:02:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 123 states have (on average 1.2520325203252032) internal successors, (154), 124 states have internal predecessors, (154), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-20 11:02:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 241 transitions. [2022-11-20 11:02:29,160 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 241 transitions. Word has length 93 [2022-11-20 11:02:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:29,163 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 241 transitions. [2022-11-20 11:02:29,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 241 transitions. [2022-11-20 11:02:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 11:02:29,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:29,166 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:29,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:29,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:29,376 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:29,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:29,377 INFO L85 PathProgramCache]: Analyzing trace with hash 302071913, now seen corresponding path program 1 times [2022-11-20 11:02:29,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:29,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072662836] [2022-11-20 11:02:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 11:02:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 11:02:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 11:02:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 11:02:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-20 11:02:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-20 11:02:30,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:30,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072662836] [2022-11-20 11:02:30,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072662836] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:30,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998975526] [2022-11-20 11:02:30,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:30,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:30,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:30,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:30,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:02:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:31,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 2604 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:02:31,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 11:02:31,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:31,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998975526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:31,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:31,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2022-11-20 11:02:31,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276647392] [2022-11-20 11:02:31,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:31,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:02:31,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:31,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:02:31,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:02:31,355 INFO L87 Difference]: Start difference. First operand 178 states and 241 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 11:02:31,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:31,553 INFO L93 Difference]: Finished difference Result 302 states and 411 transitions. [2022-11-20 11:02:31,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:02:31,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-11-20 11:02:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:31,555 INFO L225 Difference]: With dead ends: 302 [2022-11-20 11:02:31,555 INFO L226 Difference]: Without dead ends: 186 [2022-11-20 11:02:31,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:02:31,557 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 13 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:31,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1167 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:02:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-20 11:02:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-11-20 11:02:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 127 states have (on average 1.2440944881889764) internal successors, (158), 129 states have internal predecessors, (158), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-20 11:02:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2022-11-20 11:02:31,570 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 97 [2022-11-20 11:02:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:31,571 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2022-11-20 11:02:31,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 11:02:31,571 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2022-11-20 11:02:31,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:31,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:31,573 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:31,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:31,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-20 11:02:31,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:31,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1510879250, now seen corresponding path program 1 times [2022-11-20 11:02:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:31,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665822270] [2022-11-20 11:02:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:31,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,233 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 11:02:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:32,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665822270] [2022-11-20 11:02:32,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665822270] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:32,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105967449] [2022-11-20 11:02:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:32,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:32,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:32,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:32,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:02:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:32,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-20 11:02:32,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:32,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105967449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:32,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:32,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-20 11:02:32,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536531919] [2022-11-20 11:02:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:32,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:02:32,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:02:32,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:32,876 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:32,915 INFO L93 Difference]: Finished difference Result 309 states and 423 transitions. [2022-11-20 11:02:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:02:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-20 11:02:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:32,917 INFO L225 Difference]: With dead ends: 309 [2022-11-20 11:02:32,918 INFO L226 Difference]: Without dead ends: 186 [2022-11-20 11:02:32,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:32,921 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 9 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:32,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 480 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-20 11:02:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-11-20 11:02:32,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 129 states have internal predecessors, (156), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-20 11:02:32,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 246 transitions. [2022-11-20 11:02:32,940 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 246 transitions. Word has length 99 [2022-11-20 11:02:32,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:32,941 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 246 transitions. [2022-11-20 11:02:32,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:32,941 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 246 transitions. [2022-11-20 11:02:32,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:32,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:32,945 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:32,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:33,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:33,156 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:33,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1932962354, now seen corresponding path program 1 times [2022-11-20 11:02:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:33,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580194094] [2022-11-20 11:02:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:33,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,641 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-20 11:02:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:33,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580194094] [2022-11-20 11:02:33,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580194094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:33,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120094152] [2022-11-20 11:02:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:33,644 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:33,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:02:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:34,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2611 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:34,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 11:02:34,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:34,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120094152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:34,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:34,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-20 11:02:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622669818] [2022-11-20 11:02:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:34,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:02:34,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:02:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:02:34,309 INFO L87 Difference]: Start difference. First operand 183 states and 246 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:34,341 INFO L93 Difference]: Finished difference Result 315 states and 430 transitions. [2022-11-20 11:02:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:02:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-20 11:02:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:34,343 INFO L225 Difference]: With dead ends: 315 [2022-11-20 11:02:34,344 INFO L226 Difference]: Without dead ends: 192 [2022-11-20 11:02:34,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:34,345 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 34 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:34,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 478 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:34,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-20 11:02:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-11-20 11:02:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 123 states have (on average 1.2113821138211383) internal successors, (149), 125 states have internal predecessors, (149), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-20 11:02:34,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2022-11-20 11:02:34,361 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 99 [2022-11-20 11:02:34,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:34,361 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2022-11-20 11:02:34,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:02:34,362 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2022-11-20 11:02:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:34,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:34,364 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:34,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-20 11:02:34,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 11:02:34,575 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash -400430284, now seen corresponding path program 1 times [2022-11-20 11:02:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:34,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425102668] [2022-11-20 11:02:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:34,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:37,532 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 11:02:37,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:37,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425102668] [2022-11-20 11:02:37,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425102668] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:37,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068353931] [2022-11-20 11:02:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:37,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:37,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:37,534 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:37,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:02:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:38,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2606 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 11:02:38,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:38,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 11:02:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 33 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:02:39,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:02:40,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068353931] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:40,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:40,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 9] total 27 [2022-11-20 11:02:40,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836409137] [2022-11-20 11:02:40,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:40,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-20 11:02:40,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:40,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-20 11:02:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=612, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:02:40,018 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 26 states have internal predecessors, (132), 7 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2022-11-20 11:02:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:42,230 INFO L93 Difference]: Finished difference Result 248 states and 310 transitions. [2022-11-20 11:02:42,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 11:02:42,231 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 26 states have internal predecessors, (132), 7 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 99 [2022-11-20 11:02:42,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:42,233 INFO L225 Difference]: With dead ends: 248 [2022-11-20 11:02:42,234 INFO L226 Difference]: Without dead ends: 220 [2022-11-20 11:02:42,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 195 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=217, Invalid=1115, Unknown=0, NotChecked=0, Total=1332 [2022-11-20 11:02:42,236 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 341 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 543 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:42,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 945 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1287 Invalid, 0 Unknown, 543 Unchecked, 1.6s Time] [2022-11-20 11:02:42,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-20 11:02:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 201. [2022-11-20 11:02:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 143 states have (on average 1.2027972027972027) internal successors, (172), 144 states have internal predecessors, (172), 43 states have call successors, (43), 14 states have call predecessors, (43), 14 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-20 11:02:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 259 transitions. [2022-11-20 11:02:42,255 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 259 transitions. Word has length 99 [2022-11-20 11:02:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:42,256 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 259 transitions. [2022-11-20 11:02:42,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.076923076923077) internal successors, (132), 26 states have internal predecessors, (132), 7 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2022-11-20 11:02:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 259 transitions. [2022-11-20 11:02:42,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:42,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:42,258 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:42,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:42,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:42,469 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:42,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash 768159994, now seen corresponding path program 1 times [2022-11-20 11:02:42,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:42,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948035554] [2022-11-20 11:02:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:42,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:45,177 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 11:02:45,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:45,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948035554] [2022-11-20 11:02:45,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948035554] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:45,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125512732] [2022-11-20 11:02:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:45,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:45,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:45,179 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:45,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:02:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:45,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-20 11:02:45,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:02:47,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:48,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:02:48,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 1 [2022-11-20 11:02:48,580 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-20 11:02:48,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 36 [2022-11-20 11:02:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:02:48,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125512732] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:48,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:48,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 12] total 30 [2022-11-20 11:02:48,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654687721] [2022-11-20 11:02:48,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:48,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 11:02:48,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:48,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 11:02:48,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:02:48,775 INFO L87 Difference]: Start difference. First operand 201 states and 259 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-20 11:02:53,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:53,029 INFO L93 Difference]: Finished difference Result 327 states and 428 transitions. [2022-11-20 11:02:53,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-20 11:02:53,030 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 99 [2022-11-20 11:02:53,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:53,032 INFO L225 Difference]: With dead ends: 327 [2022-11-20 11:02:53,033 INFO L226 Difference]: Without dead ends: 315 [2022-11-20 11:02:53,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 194 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=511, Invalid=2245, Unknown=0, NotChecked=0, Total=2756 [2022-11-20 11:02:53,035 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 342 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 468 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:53,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1161 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1498 Invalid, 0 Unknown, 468 Unchecked, 2.2s Time] [2022-11-20 11:02:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-20 11:02:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 292. [2022-11-20 11:02:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 207 states have (on average 1.1932367149758454) internal successors, (247), 209 states have internal predecessors, (247), 65 states have call successors, (65), 17 states have call predecessors, (65), 19 states have return successors, (76), 65 states have call predecessors, (76), 64 states have call successors, (76) [2022-11-20 11:02:53,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 388 transitions. [2022-11-20 11:02:53,070 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 388 transitions. Word has length 99 [2022-11-20 11:02:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:53,071 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 388 transitions. [2022-11-20 11:02:53,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-20 11:02:53,071 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 388 transitions. [2022-11-20 11:02:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:53,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:53,074 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:53,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:53,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:53,285 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:53,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1026325432, now seen corresponding path program 1 times [2022-11-20 11:02:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:53,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330845564] [2022-11-20 11:02:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:53,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 11:02:54,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:54,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330845564] [2022-11-20 11:02:54,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330845564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:54,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:54,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:02:54,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426597389] [2022-11-20 11:02:54,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:54,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:02:54,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:02:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:54,203 INFO L87 Difference]: Start difference. First operand 292 states and 388 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:54,837 INFO L93 Difference]: Finished difference Result 439 states and 581 transitions. [2022-11-20 11:02:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:02:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2022-11-20 11:02:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:54,840 INFO L225 Difference]: With dead ends: 439 [2022-11-20 11:02:54,840 INFO L226 Difference]: Without dead ends: 288 [2022-11-20 11:02:54,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:02:54,842 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 83 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:54,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 389 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:02:54,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-11-20 11:02:54,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 283. [2022-11-20 11:02:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 199 states have (on average 1.185929648241206) internal successors, (236), 200 states have internal predecessors, (236), 65 states have call successors, (65), 17 states have call predecessors, (65), 18 states have return successors, (75), 65 states have call predecessors, (75), 64 states have call successors, (75) [2022-11-20 11:02:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 376 transitions. [2022-11-20 11:02:54,874 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 376 transitions. Word has length 99 [2022-11-20 11:02:54,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:54,875 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 376 transitions. [2022-11-20 11:02:54,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:02:54,875 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 376 transitions. [2022-11-20 11:02:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:02:54,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:54,878 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:54,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:02:54,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:54,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:54,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2140021892, now seen corresponding path program 1 times [2022-11-20 11:02:54,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:54,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632891570] [2022-11-20 11:02:54,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:54,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:02:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:02:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:02:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:02:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:02:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:02:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:02:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:02:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:02:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:02:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:58,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:02:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 11:02:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:59,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632891570] [2022-11-20 11:02:59,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632891570] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:59,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442214224] [2022-11-20 11:02:59,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:59,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:59,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:59,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:59,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 11:02:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:59,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 11:02:59,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:03:01,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:03:02,718 INFO L321 Elim1Store]: treesize reduction 15, result has 69.4 percent of original size [2022-11-20 11:03:02,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 49 [2022-11-20 11:03:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:03:03,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442214224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:03:03,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:03:03,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 30 [2022-11-20 11:03:03,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626405708] [2022-11-20 11:03:03,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:03:03,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 11:03:03,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:03:03,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 11:03:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:03:03,046 INFO L87 Difference]: Start difference. First operand 283 states and 376 transitions. Second operand has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 29 states have internal predecessors, (128), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 11:03:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:06,177 INFO L93 Difference]: Finished difference Result 302 states and 397 transitions. [2022-11-20 11:03:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-20 11:03:06,178 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 29 states have internal predecessors, (128), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 99 [2022-11-20 11:03:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:06,179 INFO L225 Difference]: With dead ends: 302 [2022-11-20 11:03:06,180 INFO L226 Difference]: Without dead ends: 290 [2022-11-20 11:03:06,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 193 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=420, Invalid=1836, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:03:06,181 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 213 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 1642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 215 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:06,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 1037 Invalid, 1642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1377 Invalid, 0 Unknown, 215 Unchecked, 1.9s Time] [2022-11-20 11:03:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-20 11:03:06,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 273. [2022-11-20 11:03:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 189 states have (on average 1.1904761904761905) internal successors, (225), 191 states have internal predecessors, (225), 65 states have call successors, (65), 16 states have call predecessors, (65), 18 states have return successors, (75), 65 states have call predecessors, (75), 64 states have call successors, (75) [2022-11-20 11:03:06,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 365 transitions. [2022-11-20 11:03:06,216 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 365 transitions. Word has length 99 [2022-11-20 11:03:06,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:06,216 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 365 transitions. [2022-11-20 11:03:06,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 29 states have internal predecessors, (128), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-20 11:03:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 365 transitions. [2022-11-20 11:03:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 11:03:06,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:06,219 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:06,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:06,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:03:06,428 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:06,428 INFO L85 PathProgramCache]: Analyzing trace with hash 964318207, now seen corresponding path program 1 times [2022-11-20 11:03:06,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:03:06,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365320227] [2022-11-20 11:03:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:06,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:03:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:03:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:03:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:03:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:03:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:03:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:03:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:03:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:03:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:03:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:03:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:03:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-20 11:03:07,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:03:07,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365320227] [2022-11-20 11:03:07,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365320227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:07,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:07,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:03:07,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485009865] [2022-11-20 11:03:07,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:07,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:03:07,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:03:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:03:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:03:07,421 INFO L87 Difference]: Start difference. First operand 273 states and 365 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:03:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:08,144 INFO L93 Difference]: Finished difference Result 284 states and 378 transitions. [2022-11-20 11:03:08,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:03:08,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-11-20 11:03:08,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:08,146 INFO L225 Difference]: With dead ends: 284 [2022-11-20 11:03:08,146 INFO L226 Difference]: Without dead ends: 249 [2022-11-20 11:03:08,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:03:08,147 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 93 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:08,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 813 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:03:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-11-20 11:03:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 245. [2022-11-20 11:03:08,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 170 states have (on average 1.1764705882352942) internal successors, (200), 172 states have internal predecessors, (200), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (62), 56 states have call predecessors, (62), 55 states have call successors, (62) [2022-11-20 11:03:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 319 transitions. [2022-11-20 11:03:08,173 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 319 transitions. Word has length 101 [2022-11-20 11:03:08,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:08,173 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 319 transitions. [2022-11-20 11:03:08,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:03:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 319 transitions. [2022-11-20 11:03:08,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 11:03:08,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:08,175 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:08,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:03:08,176 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1368667261, now seen corresponding path program 1 times [2022-11-20 11:03:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:03:08,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654693473] [2022-11-20 11:03:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:08,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:03:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:03:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-20 11:03:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:03:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 11:03:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:03:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-20 11:03:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-20 11:03:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-20 11:03:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-20 11:03:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 11:03:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:03:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-20 11:03:10,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:03:10,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654693473] [2022-11-20 11:03:10,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654693473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:03:10,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:03:10,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-20 11:03:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055096212] [2022-11-20 11:03:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:03:10,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 11:03:10,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:03:10,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 11:03:10,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:03:10,499 INFO L87 Difference]: Start difference. First operand 245 states and 319 transitions. Second operand has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 11:03:11,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:11,891 INFO L93 Difference]: Finished difference Result 255 states and 330 transitions. [2022-11-20 11:03:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:03:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 101 [2022-11-20 11:03:11,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:11,893 INFO L225 Difference]: With dead ends: 255 [2022-11-20 11:03:11,893 INFO L226 Difference]: Without dead ends: 196 [2022-11-20 11:03:11,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-20 11:03:11,894 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 184 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:11,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 903 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:03:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-20 11:03:11,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 146. [2022-11-20 11:03:11,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-20 11:03:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2022-11-20 11:03:11,911 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 101 [2022-11-20 11:03:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:11,911 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2022-11-20 11:03:11,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-20 11:03:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2022-11-20 11:03:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-20 11:03:11,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:03:11,913 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:11,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:03:11,914 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:03:11,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:03:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -171267616, now seen corresponding path program 1 times [2022-11-20 11:03:11,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:03:11,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752436123] [2022-11-20 11:03:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:11,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:03:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:03:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-20 11:03:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:03:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-20 11:03:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 11:03:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:03:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 11:03:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 11:03:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-20 11:03:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-20 11:03:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 11:03:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-20 11:03:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-20 11:03:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-20 11:03:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-20 11:03:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-20 11:03:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-20 11:03:13,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:03:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752436123] [2022-11-20 11:03:13,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752436123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:03:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347657585] [2022-11-20 11:03:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:03:13,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:03:13,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:03:13,211 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:03:13,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 11:03:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:03:13,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-20 11:03:13,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:03:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 11:03:14,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:03:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-20 11:03:14,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347657585] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:03:14,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:03:14,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 23 [2022-11-20 11:03:14,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366512730] [2022-11-20 11:03:14,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:03:14,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 11:03:14,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:03:14,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 11:03:14,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-11-20 11:03:14,199 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-20 11:03:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:03:14,933 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2022-11-20 11:03:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:03:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) Word has length 117 [2022-11-20 11:03:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:03:14,934 INFO L225 Difference]: With dead ends: 164 [2022-11-20 11:03:14,934 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:03:14,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=1056, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 11:03:14,935 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:03:14,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 256 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:03:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:03:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:03:14,936 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) [2022-11-20 11:03:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:03:14,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2022-11-20 11:03:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:03:14,937 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:03:14,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-20 11:03:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:03:14,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:03:14,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:03:14,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:03:15,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-20 11:03:15,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:03:16,755 INFO L895 garLoopResultBuilder]: At program point L6815(lines 6806 6816) 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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-11-20 11:03:16,755 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2022-11-20 11:03:16,756 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) 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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (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| 16))) [2022-11-20 11:03:16,756 INFO L899 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2022-11-20 11:03:16,756 INFO L895 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse1 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (let ((.cse0 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (and (<= (+ .cse0 1) |ensure_string_is_allocated_bounded_length_~len~1#1|) (<= |ensure_string_is_allocated_bounded_length_~len~1#1| (+ .cse0 15)))) .cse1) (or .cse1 (<= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (+ 15 (* 18446744073709551616 (div (+ (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) (= |old(#valid)| |#valid|))) [2022-11-20 11:03:16,757 INFO L899 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2022-11-20 11:03:16,757 INFO L895 garLoopResultBuilder]: At program point L6810-2(line 6810) 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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (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| 16))) [2022-11-20 11:03:16,757 INFO L899 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2022-11-20 11:03:16,757 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) 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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-20 11:03:16,757 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) 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|)) [2022-11-20 11:03:16,757 INFO L899 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2022-11-20 11:03:16,758 INFO L899 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2022-11-20 11:03:16,758 INFO L895 garLoopResultBuilder]: At program point L6801(line 6801) 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|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-20 11:03:16,758 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-20 11:03:16,758 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2022-11-20 11:03:16,758 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-20 11:03:16,758 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-11-20 11:03:16,759 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-11-20 11:03:16,759 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-11-20 11:03:16,759 INFO L895 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-20 11:03:16,759 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7684 7704) the Hoare annotation is: true [2022-11-20 11:03:16,759 INFO L899 garLoopResultBuilder]: For program point L7697(lines 7697 7701) no Hoare annotation was computed. [2022-11-20 11:03:16,759 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7684 7704) no Hoare annotation was computed. [2022-11-20 11:03:16,759 INFO L902 garLoopResultBuilder]: At program point L7686(line 7686) the Hoare annotation is: true [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point L7688(lines 7685 7704) no Hoare annotation was computed. [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7684 7704) no Hoare annotation was computed. [2022-11-20 11:03:16,760 INFO L902 garLoopResultBuilder]: At program point L7686-1(line 7686) the Hoare annotation is: true [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point L7364-6(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point L7364-4(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point L7364-3(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,760 INFO L899 garLoopResultBuilder]: For program point L7364-8(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L902 garLoopResultBuilder]: At program point aws_byte_buf_is_validENTRY(lines 7359 7365) the Hoare annotation is: true [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validFINAL(lines 7359 7365) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point L7361-3(line 7361) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point L7361-1(line 7361) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7359 7365) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point L7361(lines 7361 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,761 INFO L899 garLoopResultBuilder]: For program point L7361-7(lines 7361 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7361-6(lines 7361 7362) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7361-4(lines 7361 7362) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7361-11(lines 7361 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7361-9(lines 7361 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7364-2(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point L7364(line 7364) no Hoare annotation was computed. [2022-11-20 11:03:16,762 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-20 11:03:16,763 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-20 11:03:16,763 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-20 11:03:16,763 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-20 11:03:16,763 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-20 11:03:16,763 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-20 11:03:16,763 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-20 11:03:16,763 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2022-11-20 11:03:16,764 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2022-11-20 11:03:16,764 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2022-11-20 11:03:16,764 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2022-11-20 11:03:16,764 INFO L899 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2022-11-20 11:03:16,764 INFO L899 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2022-11-20 11:03:16,764 INFO L899 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2022-11-20 11:03:16,764 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2022-11-20 11:03:16,765 INFO L899 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2022-11-20 11:03:16,765 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2022-11-20 11:03:16,765 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-20 11:03:16,765 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-20 11:03:16,765 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-20 11:03:16,765 INFO L895 garLoopResultBuilder]: At program point L9408(line 9408) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,766 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2022-11-20 11:03:16,766 INFO L899 garLoopResultBuilder]: For program point L9408-1(line 9408) no Hoare annotation was computed. [2022-11-20 11:03:16,766 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2022-11-20 11:03:16,766 INFO L895 garLoopResultBuilder]: At program point L9408-2(lines 9386 9409) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,766 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2022-11-20 11:03:16,767 INFO L895 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_#t~mem473#1| (select (select |#memory_int| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (+ |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 16))) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-20 11:03:16,767 INFO L899 garLoopResultBuilder]: For program point L9388(line 9388) no Hoare annotation was computed. [2022-11-20 11:03:16,767 INFO L899 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2022-11-20 11:03:16,767 INFO L895 garLoopResultBuilder]: At program point L9388-2(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,767 INFO L895 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: false [2022-11-20 11:03:16,768 INFO L895 garLoopResultBuilder]: At program point L9553-1(line 9553) the Hoare annotation is: false [2022-11-20 11:03:16,768 INFO L899 garLoopResultBuilder]: For program point L9553-2(line 9553) no Hoare annotation was computed. [2022-11-20 11:03:16,768 INFO L899 garLoopResultBuilder]: For program point L9388-3(line 9388) no Hoare annotation was computed. [2022-11-20 11:03:16,768 INFO L895 garLoopResultBuilder]: At program point L9388-4(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,768 INFO L899 garLoopResultBuilder]: For program point L9388-5(line 9388) no Hoare annotation was computed. [2022-11-20 11:03:16,768 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:03:16,769 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:03:16,769 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:03:16,769 INFO L895 garLoopResultBuilder]: At program point L6610(line 6610) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-20 11:03:16,769 INFO L902 garLoopResultBuilder]: At program point L9558(line 9558) the Hoare annotation is: true [2022-11-20 11:03:16,769 INFO L899 garLoopResultBuilder]: For program point L9389(line 9389) no Hoare annotation was computed. [2022-11-20 11:03:16,769 INFO L899 garLoopResultBuilder]: For program point L6610-3(lines 6610 6612) no Hoare annotation was computed. [2022-11-20 11:03:16,770 INFO L895 garLoopResultBuilder]: At program point L9389-2(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,770 INFO L899 garLoopResultBuilder]: For program point L6610-1(lines 6610 6612) no Hoare annotation was computed. [2022-11-20 11:03:16,770 INFO L895 garLoopResultBuilder]: At program point L9546(line 9546) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) (+ |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 8)) 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-20 11:03:16,770 INFO L899 garLoopResultBuilder]: For program point L9389-3(line 9389) no Hoare annotation was computed. [2022-11-20 11:03:16,770 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2022-11-20 11:03:16,771 INFO L899 garLoopResultBuilder]: For program point L9538(lines 9538 9557) no Hoare annotation was computed. [2022-11-20 11:03:16,771 INFO L895 garLoopResultBuilder]: At program point L9546-1(line 9546) the Hoare annotation is: (let ((.cse8 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse7 (select .cse8 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse7 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse7) 18446744073709551616))))) (.cse4 (select .cse8 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|) .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5 .cse6) (and (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1341#1| 0) (<= 0 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1341#1|) .cse3) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse7 (* 18446744073709551616 (div (+ (- .cse7) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 .cse6 (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,771 INFO L895 garLoopResultBuilder]: At program point L9389-4(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,771 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2022-11-20 11:03:16,771 INFO L899 garLoopResultBuilder]: For program point L9546-2(line 9546) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point L9389-5(line 9389) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L895 garLoopResultBuilder]: At program point L9551(line 9551) the Hoare annotation is: false [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point L9390(lines 9390 9398) no Hoare annotation was computed. [2022-11-20 11:03:16,772 INFO L899 garLoopResultBuilder]: For program point L9551-1(line 9551) no Hoare annotation was computed. [2022-11-20 11:03:16,773 INFO L902 garLoopResultBuilder]: At program point L9539(line 9539) the Hoare annotation is: true [2022-11-20 11:03:16,773 INFO L899 garLoopResultBuilder]: For program point L9539-1(lines 9539 9540) no Hoare annotation was computed. [2022-11-20 11:03:16,773 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2022-11-20 11:03:16,773 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2022-11-20 11:03:16,773 INFO L902 garLoopResultBuilder]: At program point L9539-2(line 9539) the Hoare annotation is: true [2022-11-20 11:03:16,773 INFO L899 garLoopResultBuilder]: For program point L9539-3(line 9539) no Hoare annotation was computed. [2022-11-20 11:03:16,773 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2022-11-20 11:03:16,774 INFO L899 garLoopResultBuilder]: For program point L9539-5(lines 9539 9540) no Hoare annotation was computed. [2022-11-20 11:03:16,774 INFO L895 garLoopResultBuilder]: At program point L9556(line 9556) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1349#1|) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1349#1| 1)) [2022-11-20 11:03:16,774 INFO L899 garLoopResultBuilder]: For program point L9556-1(line 9556) no Hoare annotation was computed. [2022-11-20 11:03:16,774 INFO L899 garLoopResultBuilder]: For program point L6612-1(line 6612) no Hoare annotation was computed. [2022-11-20 11:03:16,774 INFO L895 garLoopResultBuilder]: At program point L6612(line 6612) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-20 11:03:16,774 INFO L899 garLoopResultBuilder]: For program point L9399(lines 9399 9407) no Hoare annotation was computed. [2022-11-20 11:03:16,775 INFO L895 garLoopResultBuilder]: At program point L9548(line 9548) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse6 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse6 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse6) 18446744073709551616))))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse5) (and .cse0 .cse1 .cse2 (<= .cse4 (+ .cse6 (* 18446744073709551616 (div (+ (- .cse6) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse3 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse5 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,775 INFO L899 garLoopResultBuilder]: For program point L9548-1(line 9548) no Hoare annotation was computed. [2022-11-20 11:03:16,775 INFO L899 garLoopResultBuilder]: For program point L9548-2(lines 9548 9554) no Hoare annotation was computed. [2022-11-20 11:03:16,775 INFO L895 garLoopResultBuilder]: At program point L6600(lines 6598 6601) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2022-11-20 11:03:16,775 INFO L895 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2022-11-20 11:03:16,776 INFO L895 garLoopResultBuilder]: At program point L9548-4(lines 9548 9554) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse5 16))) (let ((.cse0 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse2 (select .cse5 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse1 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 .cse1 (<= 0 (+ .cse2 (* 18446744073709551616 (div (- .cse2) 18446744073709551616)))) .cse3) (and .cse0 (<= .cse2 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse2 18446744073709551616)))) .cse1 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR) 0)) .cse3 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)))))) [2022-11-20 11:03:16,776 INFO L899 garLoopResultBuilder]: For program point L9544-1(line 9544) no Hoare annotation was computed. [2022-11-20 11:03:16,776 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-20 11:03:16,776 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-20 11:03:16,776 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-20 11:03:16,776 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-20 11:03:16,777 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-20 11:03:16,777 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-20 11:03:16,780 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:03:16,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:03:16,795 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-20 11:03:16,796 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2022-11-20 11:03:16,798 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-20 11:03:16,798 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2022-11-20 11:03:16,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:03:16 BoogieIcfgContainer [2022-11-20 11:03:16,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:03:16,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:03:16,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:03:16,802 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:03:16,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16" (3/4) ... [2022-11-20 11:03:16,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:03:16,817 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-11-20 11:03:16,817 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-20 11:03:16,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-11-20 11:03:16,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-20 11:03:16,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2022-11-20 11:03:16,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-20 11:03:16,818 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-20 11:03:16,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-20 11:03:16,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-20 11:03:16,819 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-20 11:03:16,839 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2022-11-20 11:03:16,841 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-11-20 11:03:16,842 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 11:03:16,844 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 11:03:16,845 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 11:03:16,846 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 11:03:16,848 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:03:16,849 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:03:16,892 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2022-11-20 11:03:17,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:03:17,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:03:17,665 INFO L158 Benchmark]: Toolchain (without parser) took 67318.16ms. Allocated memory was 167.8MB in the beginning and 792.7MB in the end (delta: 625.0MB). Free memory was 132.9MB in the beginning and 708.0MB in the end (delta: -575.0MB). Peak memory consumption was 521.7MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,665 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:03:17,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3380.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 132.9MB in the beginning and 123.5MB in the end (delta: 9.4MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.17ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 111.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,666 INFO L158 Benchmark]: Boogie Preprocessor took 84.56ms. Allocated memory is still 201.3MB. Free memory was 111.0MB in the beginning and 103.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,666 INFO L158 Benchmark]: RCFGBuilder took 2042.05ms. Allocated memory is still 201.3MB. Free memory was 103.6MB in the beginning and 105.5MB in the end (delta: -1.9MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,667 INFO L158 Benchmark]: TraceAbstraction took 60781.65ms. Allocated memory was 201.3MB in the beginning and 792.7MB in the end (delta: 591.4MB). Free memory was 104.5MB in the beginning and 357.7MB in the end (delta: -253.2MB). Peak memory consumption was 337.1MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,667 INFO L158 Benchmark]: Witness Printer took 863.09ms. Allocated memory is still 792.7MB. Free memory was 357.7MB in the beginning and 708.0MB in the end (delta: -350.3MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2022-11-20 11:03:17,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3380.00ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 132.9MB in the beginning and 123.5MB in the end (delta: 9.4MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.17ms. Allocated memory is still 201.3MB. Free memory was 123.5MB in the beginning and 111.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.56ms. Allocated memory is still 201.3MB. Free memory was 111.0MB in the beginning and 103.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2042.05ms. Allocated memory is still 201.3MB. Free memory was 103.6MB in the beginning and 105.5MB in the end (delta: -1.9MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * TraceAbstraction took 60781.65ms. Allocated memory was 201.3MB in the beginning and 792.7MB in the end (delta: 591.4MB). Free memory was 104.5MB in the beginning and 357.7MB in the end (delta: -253.2MB). Peak memory consumption was 337.1MB. Max. memory is 16.1GB. * Witness Printer took 863.09ms. Allocated memory is still 792.7MB. Free memory was 357.7MB in the beginning and 708.0MB in the end (delta: -350.3MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR * 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, 130 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.7s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2005 SdHoareTripleChecker+Valid, 10.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1867 mSDsluCounter, 10695 SdHoareTripleChecker+Invalid, 9.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1255 IncrementalHoareTripleChecker+Unchecked, 8706 mSDsCounter, 499 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8690 IncrementalHoareTripleChecker+Invalid, 10444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 499 mSolverCounterUnsat, 1989 mSDtfsCounter, 8690 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1939 GetRequests, 1618 SyntacticMatches, 33 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=12, InterpolantAutomatonStates: 185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 179 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 367 PreInvPairs, 403 NumberOfFragments, 1557 HoareAnnotationTreeSize, 367 FomulaSimplifications, 180 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 1449 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 2492 NumberOfCodeBlocks, 2492 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2876 ConstructedInterpolants, 101 QuantifiedInterpolants, 15532 SizeOfPredicates, 78 NumberOfNonLiveVariables, 23545 ConjunctsInSsa, 191 ConjunctsInUnsatCore, 30 InterpolantComputations, 13 PerfectInterpolantSequences, 1805/1984 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: 6598]: Loop Invariant Derived loop invariant: ((str == 0 && str == 0) && !(buf == 0)) && buf == 0 - InvariantResult [Line: 9558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9386]: Loop Invariant [2022-11-20 11:03:17,681 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-20 11:03:17,682 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR [2022-11-20 11:03:17,683 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-20 11:03:17,683 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR Derived loop invariant: (((((str == 0 && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && !(buf == 0)) && 0 <= unknown-#memory_int-unknown[buf][buf] + 18446744073709551616 * (-unknown-#memory_int-unknown[buf][buf] / 18446744073709551616)) && buf == 0) || ((((((((str == 0 && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && unknown-#memory_int-unknown[buf][buf] <= unknown-#memory_int-unknown[buf][16] + 18446744073709551616 * ((-unknown-#memory_int-unknown[buf][16] + 18446744073709551615) / 18446744073709551616) + 18446744073709551616 * (unknown-#memory_int-unknown[buf][buf] / 18446744073709551616)) && !(buf == 0)) && !(#memory_$Pointer$[buf][~aws_common_error~0~AWS_ERROR_INVALID_BASE64_STR] == 0)) && buf == 0) && buf == buf) && buf == 0) - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) RESULT: Ultimate proved your program to be correct! [2022-11-20 11:03:17,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29280f1b-9287-4add-90d6-ec91bb634d0a/bin/uautomizer-ug76WZFUDN/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