./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- 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-2329fc7 [2022-12-14 08:55:26,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:55:26,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:55:26,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:55:26,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:55:26,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:55:26,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:55:26,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:55:26,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:55:26,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:55:26,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:55:26,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:55:26,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:55:26,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:55:26,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:55:26,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:55:26,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:55:26,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:55:26,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:55:26,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:55:26,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:55:26,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:55:26,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:55:26,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:55:26,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:55:26,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:55:26,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:55:26,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:55:26,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:55:26,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:55:26,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:55:26,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:55:26,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:55:26,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:55:26,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:55:26,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:55:26,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:55:26,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:55:26,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:55:26,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:55:26,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:55:26,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:55:27,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:55:27,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:55:27,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:55:27,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:55:27,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:55:27,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:55:27,012 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:55:27,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:55:27,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:55:27,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:55:27,012 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:55:27,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:55:27,013 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:55:27,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:55:27,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:55:27,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:55:27,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:55:27,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:55:27,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:55:27,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:55:27,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:55:27,016 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:55:27,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:55:27,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:55:27,016 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:55:27,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:55:27,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:55:27,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:55:27,017 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2022-12-14 08:55:27,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:55:27,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:55:27,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:55:27,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:55:27,214 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:55:27,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-12-14 08:55:29,905 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:55:30,181 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:55:30,182 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2022-12-14 08:55:30,201 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/data/9911fb75c/031cfad646d54e4eac619dfa9a54af9d/FLAGdbcb7c5af [2022-12-14 08:55:30,212 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/data/9911fb75c/031cfad646d54e4eac619dfa9a54af9d [2022-12-14 08:55:30,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:55:30,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:55:30,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:55:30,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:55:30,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:55:30,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:55:30" (1/1) ... [2022-12-14 08:55:30,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d7a775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:30, skipping insertion in model container [2022-12-14 08:55:30,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:55:30" (1/1) ... [2022-12-14 08:55:30,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:55:30,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:55:30,449 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-12-14 08:55:30,455 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-12-14 08:55:31,011 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 08:55:31,076 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,082 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,082 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,083 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,084 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,087 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,098 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,098 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,099 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,103 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,104 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,104 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,106 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,182 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,182 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,183 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,187 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 08:55:31,190 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 08:55:31,190 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 08:55:31,411 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 08:55:31,412 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 08:55:31,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 08:55:31,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 08:55:31,414 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 08:55:31,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 08:55:31,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 08:55:31,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 08:55:31,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 08:55:31,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 08:55:31,417 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 08:55:31,536 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,537 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,542 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,544 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,545 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,546 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,547 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,550 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,551 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,551 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,551 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,552 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,552 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,582 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:55:31,585 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:55:31,607 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:55:31,617 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4504,4517] [2022-12-14 08:55:31,618 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_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i[4564,4577] [2022-12-14 08:55:31,642 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-14 08:55:31,652 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,654 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,655 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,656 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,657 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,661 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,661 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,661 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,662 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,662 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,663 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,664 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,670 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,670 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,670 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-14 08:55:31,673 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-14 08:55:31,674 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-14 08:55:31,674 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-14 08:55:31,690 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-14 08:55:31,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-14 08:55:31,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-14 08:55:31,692 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-14 08:55:31,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-14 08:55:31,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-14 08:55:31,693 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-14 08:55:31,694 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-14 08:55:31,694 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-14 08:55:31,694 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-14 08:55:31,695 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-14 08:55:31,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,712 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,713 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,714 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,715 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,716 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,717 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,718 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,719 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,719 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,719 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,720 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,720 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,720 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-14 08:55:31,731 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:55:31,732 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-14 08:55:31,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:55:31,854 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:55:31,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31 WrapperNode [2022-12-14 08:55:31,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:55:31,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:55:31,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:55:31,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:55:31,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,938 INFO L138 Inliner]: procedures = 691, calls = 1683, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 803 [2022-12-14 08:55:31,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:55:31,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:55:31,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:55:31,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:55:31,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,988 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:31,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:55:31,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:55:31,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:55:31,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:55:31,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (1/1) ... [2022-12-14 08:55:32,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:55:32,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:32,020 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:55:32,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:55:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:55:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-14 08:55:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-14 08:55:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-14 08:55:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-14 08:55:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:55:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:55:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-12-14 08:55:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-12-14 08:55:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_ensure_capacity [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_ensure_capacity [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-14 08:55:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-14 08:55:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:55:32,285 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:55:32,287 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:55:32,996 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:55:33,102 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:55:33,102 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:55:33,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:55:33 BoogieIcfgContainer [2022-12-14 08:55:33,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:55:33,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:55:33,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:55:33,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:55:33,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:55:30" (1/3) ... [2022-12-14 08:55:33,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fa80ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:55:33, skipping insertion in model container [2022-12-14 08:55:33,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:55:31" (2/3) ... [2022-12-14 08:55:33,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fa80ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:55:33, skipping insertion in model container [2022-12-14 08:55:33,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:55:33" (3/3) ... [2022-12-14 08:55:33,111 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2022-12-14 08:55:33,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:55:33,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:55:33,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:55:33,170 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=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;@1a5a4a73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:55:33,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:55:33,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-12-14 08:55:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 08:55:33,182 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:33,183 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:55:33,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:55:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash -977343462, now seen corresponding path program 1 times [2022-12-14 08:55:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:33,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155578155] [2022-12-14 08:55:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:33,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-14 08:55:33,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:33,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155578155] [2022-12-14 08:55:33,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155578155] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:55:33,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724177216] [2022-12-14 08:55:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:33,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:33,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:33,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:55:33,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:55:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:34,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:55:34,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:55:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-14 08:55:34,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:55:34,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724177216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:34,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:55:34,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-12-14 08:55:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121771870] [2022-12-14 08:55:34,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:34,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:55:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:55:34,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:55:34,245 INFO L87 Difference]: Start difference. First operand has 207 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 112 states have internal predecessors, (134), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 08:55:34,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:34,582 INFO L93 Difference]: Finished difference Result 393 states and 562 transitions. [2022-12-14 08:55:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:55:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 71 [2022-12-14 08:55:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:34,592 INFO L225 Difference]: With dead ends: 393 [2022-12-14 08:55:34,592 INFO L226 Difference]: Without dead ends: 201 [2022-12-14 08:55:34,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:55:34,598 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 29 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:34,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 869 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 08:55:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-12-14 08:55:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-12-14 08:55:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-12-14 08:55:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 278 transitions. [2022-12-14 08:55:34,648 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 278 transitions. Word has length 71 [2022-12-14 08:55:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:34,649 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 278 transitions. [2022-12-14 08:55:34,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 08:55:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 278 transitions. [2022-12-14 08:55:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-12-14 08:55:34,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:34,653 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:55:34,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:55:34,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 08:55:34,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:55:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:34,857 INFO L85 PathProgramCache]: Analyzing trace with hash 591553231, now seen corresponding path program 1 times [2022-12-14 08:55:34,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:34,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865018455] [2022-12-14 08:55:34,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:34,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:35,026 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:55:35,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436821454] [2022-12-14 08:55:35,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:35,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:35,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:55:35,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:55:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:35,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 2359 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 08:55:35,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:55:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 08:55:35,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:55:35,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:35,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865018455] [2022-12-14 08:55:35,463 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:55:35,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436821454] [2022-12-14 08:55:35,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436821454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:35,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:55:35,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 08:55:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301550639] [2022-12-14 08:55:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:35,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 08:55:35,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:35,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 08:55:35,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:55:35,465 INFO L87 Difference]: Start difference. First operand 201 states and 278 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-14 08:55:35,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:35,974 INFO L93 Difference]: Finished difference Result 370 states and 510 transitions. [2022-12-14 08:55:35,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 08:55:35,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 80 [2022-12-14 08:55:35,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:35,977 INFO L225 Difference]: With dead ends: 370 [2022-12-14 08:55:35,977 INFO L226 Difference]: Without dead ends: 201 [2022-12-14 08:55:35,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:55:35,979 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 94 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:35,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1107 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 08:55:35,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-12-14 08:55:35,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-12-14 08:55:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 106 states have (on average 1.179245283018868) internal successors, (125), 109 states have internal predecessors, (125), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (74), 70 states have call predecessors, (74), 70 states have call successors, (74) [2022-12-14 08:55:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 272 transitions. [2022-12-14 08:55:36,002 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 272 transitions. Word has length 80 [2022-12-14 08:55:36,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:36,002 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 272 transitions. [2022-12-14 08:55:36,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-14 08:55:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 272 transitions. [2022-12-14 08:55:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-14 08:55:36,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:36,005 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 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] [2022-12-14 08:55:36,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:55:36,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:36,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:55:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1447062450, now seen corresponding path program 2 times [2022-12-14 08:55:36,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:36,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328094562] [2022-12-14 08:55:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:36,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:36,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:55:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105994939] [2022-12-14 08:55:36,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 08:55:36,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:36,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:36,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:55:36,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:55:36,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 08:55:36,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 08:55:36,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1910 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 08:55:36,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:55:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-12-14 08:55:36,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:55:36,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:36,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328094562] [2022-12-14 08:55:36,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:55:36,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105994939] [2022-12-14 08:55:36,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105994939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:36,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:55:36,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:55:36,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582276696] [2022-12-14 08:55:36,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:36,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:55:36,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:36,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:55:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:55:36,592 INFO L87 Difference]: Start difference. First operand 201 states and 272 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 08:55:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:36,893 INFO L93 Difference]: Finished difference Result 348 states and 463 transitions. [2022-12-14 08:55:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:55:36,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 89 [2022-12-14 08:55:36,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:36,894 INFO L225 Difference]: With dead ends: 348 [2022-12-14 08:55:36,895 INFO L226 Difference]: Without dead ends: 205 [2022-12-14 08:55:36,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:55:36,896 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:36,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 966 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 08:55:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-14 08:55:36,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2022-12-14 08:55:36,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 112 states have internal predecessors, (128), 73 states have call successors, (73), 21 states have call predecessors, (73), 22 states have return successors, (75), 71 states have call predecessors, (75), 70 states have call successors, (75) [2022-12-14 08:55:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 276 transitions. [2022-12-14 08:55:36,912 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 276 transitions. Word has length 89 [2022-12-14 08:55:36,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:36,912 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 276 transitions. [2022-12-14 08:55:36,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 08:55:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 276 transitions. [2022-12-14 08:55:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-12-14 08:55:36,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:36,914 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 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, 1, 1] [2022-12-14 08:55:36,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 08:55:37,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:37,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:55:37,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:37,117 INFO L85 PathProgramCache]: Analyzing trace with hash -109416090, now seen corresponding path program 1 times [2022-12-14 08:55:37,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:37,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047434511] [2022-12-14 08:55:37,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:37,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:37,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:55:37,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448224940] [2022-12-14 08:55:37,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:37,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:37,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:37,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:55:37,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:55:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:37,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 08:55:37,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:55:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-14 08:55:37,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:55:37,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:55:37,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047434511] [2022-12-14 08:55:37,587 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:55:37,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448224940] [2022-12-14 08:55:37,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448224940] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:55:37,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:55:37,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 08:55:37,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241768958] [2022-12-14 08:55:37,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:55:37,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:55:37,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:55:37,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:55:37,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 08:55:37,589 INFO L87 Difference]: Start difference. First operand 205 states and 276 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-12-14 08:55:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:55:38,208 INFO L93 Difference]: Finished difference Result 375 states and 501 transitions. [2022-12-14 08:55:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 08:55:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) Word has length 93 [2022-12-14 08:55:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:55:38,209 INFO L225 Difference]: With dead ends: 375 [2022-12-14 08:55:38,209 INFO L226 Difference]: Without dead ends: 203 [2022-12-14 08:55:38,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 08:55:38,210 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 129 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:55:38,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1248 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:55:38,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-14 08:55:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-12-14 08:55:38,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 108 states have (on average 1.1666666666666667) internal successors, (126), 110 states have internal predecessors, (126), 73 states have call successors, (73), 21 states have call predecessors, (73), 21 states have return successors, (71), 71 states have call predecessors, (71), 70 states have call successors, (71) [2022-12-14 08:55:38,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 270 transitions. [2022-12-14 08:55:38,220 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 270 transitions. Word has length 93 [2022-12-14 08:55:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:55:38,220 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 270 transitions. [2022-12-14 08:55:38,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 5 states have call successors, (17) [2022-12-14 08:55:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 270 transitions. [2022-12-14 08:55:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 08:55:38,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:55:38,221 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:55:38,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:55:38,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:38,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:55:38,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:55:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1593599012, now seen corresponding path program 1 times [2022-12-14 08:55:38,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:55:38,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385762440] [2022-12-14 08:55:38,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:38,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:55:38,516 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:55:38,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676342191] [2022-12-14 08:55:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:55:38,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:55:38,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:55:38,518 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:55:38,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71cc808e-fdaa-41b8-acbc-214c19d2bbdf/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:55:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:55:40,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2758 conjuncts, 450 conjunts are in the unsatisfiable core [2022-12-14 08:55:40,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:55:40,721 INFO L350 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 [2022-12-14 08:55:41,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:55:41,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 08:55:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:55:41,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:55:41,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-12-14 08:55:41,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:55:41,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 08:55:42,459 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-12-14 08:55:42,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-12-14 08:55:42,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-12-14 08:55:42,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 08:55:42,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 08:55:43,046 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 08:55:43,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 37 [2022-12-14 09:00:08,100 WARN L233 SmtUtils]: Spent 4.33m on a formula simplification. DAG size of input: 141 DAG size of output: 75 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:00:08,101 INFO L321 Elim1Store]: treesize reduction 276, result has 36.0 percent of original size [2022-12-14 09:00:08,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 203 treesize of output 370 [2022-12-14 09:00:08,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:00:08,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:00:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:00:39,262 WARN L233 SmtUtils]: Spent 31.13s on a formula simplification. DAG size of input: 27 DAG size of output: 12 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:00:39,263 INFO L321 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2022-12-14 09:00:39,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 237 [2022-12-14 09:01:08,641 WARN L233 SmtUtils]: Spent 29.33s on a formula simplification. DAG size of input: 23 DAG size of output: 15 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:01:08,641 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:01:08,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 165 [2022-12-14 09:01:34,752 WARN L233 SmtUtils]: Spent 26.07s on a formula simplification. DAG size of input: 23 DAG size of output: 15 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:01:34,752 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 09:01:34,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 126 treesize of output 159