./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:26,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:26,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:19:26,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:26,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:26,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:26,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:26,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:26,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:26,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:26,177 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:26,178 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:26,178 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:26,179 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:26,180 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:26,180 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:26,181 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:26,182 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:26,182 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:26,183 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:26,184 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:26,185 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:26,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:26,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:26,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:26,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:26,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:26,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:26,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:26,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:26,191 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:26,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:26,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:26,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:26,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:26,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:26,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:26,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:26,195 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:26,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:26,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:26,197 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:26,197 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:26,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:26,198 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2023-11-23 21:19:26,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:26,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:26,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:26,461 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:26,462 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:26,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2023-11-23 21:19:29,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:30,232 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:30,235 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2023-11-23 21:19:30,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/data/b5bcb57d1/e324f0f2457e40aa8fe1592f1202548e/FLAGb74f04c0e [2023-11-23 21:19:30,297 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/data/b5bcb57d1/e324f0f2457e40aa8fe1592f1202548e [2023-11-23 21:19:30,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:30,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:30,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:30,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:30,316 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:30,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:30" (1/1) ... [2023-11-23 21:19:30,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddd8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:30, skipping insertion in model container [2023-11-23 21:19:30,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:30" (1/1) ... [2023-11-23 21:19:30,440 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:30,743 WARN L240 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_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2023-11-23 21:19:30,752 WARN L240 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_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2023-11-23 21:19:31,953 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,954 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,955 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,956 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,957 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,976 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,977 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,981 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:31,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,455 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:19:32,477 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:19:32,479 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:19:32,481 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:19:32,485 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:19:32,500 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:19:32,501 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:19:32,502 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:19:32,503 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:19:32,504 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:19:32,713 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,737 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:32,854 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:32,868 WARN L240 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_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4497,4510] [2023-11-23 21:19:32,870 WARN L240 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_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i[4557,4570] [2023-11-23 21:19:32,969 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,970 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,972 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,985 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,986 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:32,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:33,059 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 21:19:33,060 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 21:19:33,066 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 21:19:33,071 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 21:19:33,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 21:19:33,074 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 21:19:33,075 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 21:19:33,076 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 21:19:33,077 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 21:19:33,079 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 21:19:33,105 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:33,110 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 21:19:33,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2023-11-23 21:19:33,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:33,383 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,383 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,383 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,383 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,384 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,385 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,385 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,385 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,385 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,385 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:33,394 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:33,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33 WrapperNode [2023-11-23 21:19:33,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:33,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:33,396 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:33,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:33,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,599 INFO L138 Inliner]: procedures = 689, calls = 1688, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 618 [2023-11-23 21:19:33,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:33,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:33,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:33,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:33,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:33,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:33,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:33,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:33,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (1/1) ... [2023-11-23 21:19:33,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:33,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:33,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:33,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:33,791 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 21:19:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 21:19:33,792 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 21:19:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 21:19:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 21:19:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 21:19:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 21:19:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 21:19:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:19:33,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:19:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:33,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 21:19:33,796 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 21:19:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 21:19:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 21:19:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 21:19:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 21:19:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:19:33,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:19:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:19:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 21:19:33,798 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 21:19:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 21:19:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 21:19:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 21:19:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 21:19:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:34,136 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:34,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:35,080 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:35,275 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:35,275 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:35,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:35 BoogieIcfgContainer [2023-11-23 21:19:35,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:35,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:35,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:35,284 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:35,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:30" (1/3) ... [2023-11-23 21:19:35,285 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87bdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:35, skipping insertion in model container [2023-11-23 21:19:35,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:33" (2/3) ... [2023-11-23 21:19:35,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b87bdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:35, skipping insertion in model container [2023-11-23 21:19:35,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:35" (3/3) ... [2023-11-23 21:19:35,290 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2023-11-23 21:19:35,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:35,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:19:35,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:35,370 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1151ba6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:35,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:19:35,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-23 21:19:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 21:19:35,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:35,387 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:35,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:35,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:35,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1738805365, now seen corresponding path program 1 times [2023-11-23 21:19:35,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:35,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094805306] [2023-11-23 21:19:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:36,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094805306] [2023-11-23 21:19:36,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 21:19:36,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935922713] [2023-11-23 21:19:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:36,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:36,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:36,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:19:36,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:19:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:36,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:19:36,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:19:36,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:36,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935922713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:36,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:36,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:19:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144845360] [2023-11-23 21:19:36,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:36,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:19:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:19:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:36,789 INFO L87 Difference]: Start difference. First operand has 99 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 55 states have internal predecessors, (64), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 21:19:37,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:37,236 INFO L93 Difference]: Finished difference Result 169 states and 229 transitions. [2023-11-23 21:19:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:19:37,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 58 [2023-11-23 21:19:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:37,252 INFO L225 Difference]: With dead ends: 169 [2023-11-23 21:19:37,253 INFO L226 Difference]: Without dead ends: 99 [2023-11-23 21:19:37,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:19:37,265 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 26 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:37,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 355 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:19:37,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-23 21:19:37,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-23 21:19:37,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 56 states have internal predecessors, (63), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2023-11-23 21:19:37,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2023-11-23 21:19:37,353 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 58 [2023-11-23 21:19:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:37,353 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2023-11-23 21:19:37,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 21:19:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2023-11-23 21:19:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:19:37,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:37,361 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 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] [2023-11-23 21:19:37,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:19:37,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:37,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:37,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash 802804190, now seen corresponding path program 1 times [2023-11-23 21:19:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75838710] [2023-11-23 21:19:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:37,711 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:19:37,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40930090] [2023-11-23 21:19:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:37,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:37,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:37,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:19:37,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:19:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:38,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:19:38,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:38,355 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-23 21:19:38,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:38,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:38,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75838710] [2023-11-23 21:19:38,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:19:38,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40930090] [2023-11-23 21:19:38,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40930090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:38,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:38,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:19:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572126259] [2023-11-23 21:19:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:38,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:19:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:38,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:19:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:19:38,360 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-23 21:19:38,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:38,895 INFO L93 Difference]: Finished difference Result 156 states and 196 transitions. [2023-11-23 21:19:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:19:38,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 67 [2023-11-23 21:19:38,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:38,901 INFO L225 Difference]: With dead ends: 156 [2023-11-23 21:19:38,901 INFO L226 Difference]: Without dead ends: 97 [2023-11-23 21:19:38,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:19:38,903 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 24 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:38,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 443 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:19:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-23 21:19:38,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-11-23 21:19:38,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 53 states have (on average 1.150943396226415) internal successors, (61), 54 states have internal predecessors, (61), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:19:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2023-11-23 21:19:38,930 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 67 [2023-11-23 21:19:38,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:38,930 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2023-11-23 21:19:38,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-23 21:19:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2023-11-23 21:19:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 21:19:38,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:38,933 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:38,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:19:39,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:39,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:39,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:39,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1043020846, now seen corresponding path program 1 times [2023-11-23 21:19:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178049013] [2023-11-23 21:19:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:39,264 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:19:39,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228204395] [2023-11-23 21:19:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:19:39,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:39,270 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:19:39,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7a4b8b2-8056-4fbf-9eb9-b11764235fae/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:19:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:46,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 313 conjunts are in the unsatisfiable core [2023-11-23 21:19:46,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:46,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 21:19:48,245 INFO L349 Elim1Store]: treesize reduction 76, result has 33.9 percent of original size [2023-11-23 21:19:48,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 55 [2023-11-23 21:19:48,345 INFO L349 Elim1Store]: treesize reduction 104, result has 27.3 percent of original size [2023-11-23 21:19:48,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 69 [2023-11-23 21:19:48,401 INFO L349 Elim1Store]: treesize reduction 39, result has 32.8 percent of original size [2023-11-23 21:19:48,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 33 [2023-11-23 21:19:54,384 INFO L349 Elim1Store]: treesize reduction 672, result has 21.6 percent of original size [2023-11-23 21:19:54,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 47 case distinctions, treesize of input 313 treesize of output 589 [2023-11-23 21:19:54,936 INFO L349 Elim1Store]: treesize reduction 135, result has 23.7 percent of original size [2023-11-23 21:19:54,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 439 treesize of output 554 [2023-11-23 21:19:55,537 INFO L349 Elim1Store]: treesize reduction 135, result has 23.7 percent of original size [2023-11-23 21:19:55,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 417 treesize of output 522 [2023-11-23 21:19:56,179 INFO L349 Elim1Store]: treesize reduction 135, result has 23.7 percent of original size [2023-11-23 21:19:56,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 404 treesize of output 507