./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- 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 [2022-12-13 19:02:52,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:02:52,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:02:52,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:02:52,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:02:52,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:02:52,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:02:52,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:02:52,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:02:52,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:02:52,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:02:52,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:02:52,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:02:52,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:02:52,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:02:52,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:02:52,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:02:52,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:02:52,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:02:52,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:02:52,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:02:52,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:02:52,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:02:52,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:02:52,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:02:52,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:02:52,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:02:52,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:02:52,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:02:52,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:02:52,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:02:52,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:02:52,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:02:52,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:02:52,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:02:52,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:02:52,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:02:52,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:02:52,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:02:52,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:02:52,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:02:52,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 19:02:52,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:02:52,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:02:52,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:02:52,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:02:52,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:02:52,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:02:52,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:02:52,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:02:52,857 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:02:52,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:02:52,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:02:52,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:02:52,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:02:52,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:02:52,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:02:52,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:02:52,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:02:52,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:02:52,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:02:52,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:02:52,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:02:52,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:02:52,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:02:52,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:02:52,860 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:02:52,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:02:52,861 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:02:52,861 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-12-13 19:02:53,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:02:53,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:02:53,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:02:53,069 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:02:53,069 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:02:53,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-12-13 19:02:55,665 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:02:56,042 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:02:56,042 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-12-13 19:02:56,066 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/0bf0e6296/c0a61b3b1b524ef89030aac36a6ee068/FLAG8922668c1 [2022-12-13 19:02:56,076 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/0bf0e6296/c0a61b3b1b524ef89030aac36a6ee068 [2022-12-13 19:02:56,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:02:56,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:02:56,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:02:56,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:02:56,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:02:56,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:02:56" (1/1) ... [2022-12-13 19:02:56,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe1bc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:56, skipping insertion in model container [2022-12-13 19:02:56,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:02:56" (1/1) ... [2022-12-13 19:02:56,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:02:56,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:02:56,327 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-12-13 19:02:56,333 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-12-13 19:02:57,010 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,011 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,011 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,012 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,013 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,023 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,023 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,025 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,025 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,091 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,092 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,092 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,096 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 19:02:57,097 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 19:02:57,098 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 19:02:57,338 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 19:02:57,338 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 19:02:57,339 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 19:02:57,340 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 19:02:57,341 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 19:02:57,342 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 19:02:57,342 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 19:02:57,343 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 19:02:57,343 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 19:02:57,344 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 19:02:57,344 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 19:02:57,478 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 19:02:57,516 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 19:02:57,522 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:02:57,542 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:02:57,548 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,548 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,587 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:02:57,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:02:57,624 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:02:57,634 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-12-13 19:02:57,634 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-12-13 19:02:57,657 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,659 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,663 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,663 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,664 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,669 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,669 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,670 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:02:57,672 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 19:02:57,673 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 19:02:57,673 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 19:02:57,687 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 19:02:57,687 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 19:02:57,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 19:02:57,688 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 19:02:57,689 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 19:02:57,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 19:02:57,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 19:02:57,690 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 19:02:57,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 19:02:57,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 19:02:57,691 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 19:02:57,704 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 19:02:57,719 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 19:02:57,723 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:02:57,735 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:02:57,739 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,740 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:02:57,757 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:02:57,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:02:57,898 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:02:57,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57 WrapperNode [2022-12-13 19:02:57,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:02:57,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:02:57,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:02:57,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:02:57,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:57,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:57,996 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 946 [2022-12-13 19:02:57,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:02:57,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:02:57,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:02:57,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:02:58,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:02:58,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:02:58,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:02:58,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:02:58,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (1/1) ... [2022-12-13 19:02:58,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:02:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:02:58,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:02:58,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:02:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-12-13 19:02:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-12-13 19:02:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-13 19:02:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-13 19:02:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:02:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 19:02:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 19:02:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-12-13 19:02:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 19:02:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 19:02:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:02:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 19:02:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 19:02:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 19:02:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:02:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 19:02:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 19:02:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-13 19:02:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-13 19:02:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 19:02:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 19:02:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 19:02:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 19:02:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:02:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:02:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 19:02:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-13 19:02:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-13 19:02:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:02:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-12-13 19:02:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:02:58,344 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:02:58,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:02:59,414 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:02:59,421 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:02:59,421 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:02:59,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:02:59 BoogieIcfgContainer [2022-12-13 19:02:59,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:02:59,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:02:59,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:02:59,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:02:59,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:02:56" (1/3) ... [2022-12-13 19:02:59,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dda176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:02:59, skipping insertion in model container [2022-12-13 19:02:59,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:02:57" (2/3) ... [2022-12-13 19:02:59,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dda176d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:02:59, skipping insertion in model container [2022-12-13 19:02:59,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:02:59" (3/3) ... [2022-12-13 19:02:59,430 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-12-13 19:02:59,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:02:59,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:02:59,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:02:59,489 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2f2f0f72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:02:59,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 19:02:59,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 84 states have internal predecessors, (106), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-12-13 19:02:59,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 19:02:59,502 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:02:59,502 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-13 19:02:59,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:02:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:02:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash 896154906, now seen corresponding path program 1 times [2022-12-13 19:02:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:02:59,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993307230] [2022-12-13 19:02:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:02:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:02:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:02:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:02:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:02:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:02:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 19:02:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 19:02:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:02:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:02:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 19:03:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 19:03:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 19:03:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:03:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:03:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-13 19:03:00,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:00,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993307230] [2022-12-13 19:03:00,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993307230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:00,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:00,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:03:00,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472898467] [2022-12-13 19:03:00,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:00,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:03:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:03:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:00,092 INFO L87 Difference]: Start difference. First operand has 128 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 84 states have internal predecessors, (106), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:00,385 INFO L93 Difference]: Finished difference Result 253 states and 367 transitions. [2022-12-13 19:03:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:03:00,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-12-13 19:03:00,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:00,396 INFO L225 Difference]: With dead ends: 253 [2022-12-13 19:03:00,396 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 19:03:00,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:00,403 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:00,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 178 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:03:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 19:03:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-13 19:03:00,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 77 states have internal predecessors, (94), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-12-13 19:03:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-12-13 19:03:00,450 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 84 [2022-12-13 19:03:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:00,450 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-12-13 19:03:00,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-12-13 19:03:00,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 19:03:00,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:00,454 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-13 19:03:00,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:03:00,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:00,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:00,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1815225614, now seen corresponding path program 1 times [2022-12-13 19:03:00,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:00,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131682698] [2022-12-13 19:03:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:00,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:03:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 19:03:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 19:03:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 19:03:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 19:03:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 19:03:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 19:03:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:01,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 19:03:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:03:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 19:03:01,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:01,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131682698] [2022-12-13 19:03:01,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131682698] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:01,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048802328] [2022-12-13 19:03:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:01,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:01,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:01,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:01,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:03:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:01,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:03:01,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:03:01,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:01,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048802328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:01,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:03:01,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-12-13 19:03:01,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988982885] [2022-12-13 19:03:01,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:01,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:03:01,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:01,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:03:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:03:01,544 INFO L87 Difference]: Start difference. First operand 118 states and 159 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 19:03:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:01,708 INFO L93 Difference]: Finished difference Result 220 states and 305 transitions. [2022-12-13 19:03:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:03:01,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2022-12-13 19:03:01,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:01,711 INFO L225 Difference]: With dead ends: 220 [2022-12-13 19:03:01,712 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 19:03:01,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 19:03:01,714 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 179 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:01,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 449 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:03:01,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 19:03:01,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-12-13 19:03:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 80 states have internal predecessors, (96), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2022-12-13 19:03:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 167 transitions. [2022-12-13 19:03:01,730 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 167 transitions. Word has length 84 [2022-12-13 19:03:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:01,730 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 167 transitions. [2022-12-13 19:03:01,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 19:03:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 167 transitions. [2022-12-13 19:03:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 19:03:01,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:01,731 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2022-12-13 19:03:01,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:01,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-13 19:03:01,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1294869363, now seen corresponding path program 1 times [2022-12-13 19:03:01,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:01,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373512833] [2022-12-13 19:03:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:03:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:03:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:03:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 19:03:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:03:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 19:03:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 19:03:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 19:03:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 19:03:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-12-13 19:03:02,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:02,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373512833] [2022-12-13 19:03:02,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373512833] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:02,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356963638] [2022-12-13 19:03:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:02,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:02,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:02,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:02,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:03:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:02,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:03:02,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 19:03:03,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:03,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356963638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:03,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:03:03,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-12-13 19:03:03,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995358103] [2022-12-13 19:03:03,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:03,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:03:03,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:03,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:03:03,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-13 19:03:03,086 INFO L87 Difference]: Start difference. First operand 121 states and 167 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:03,292 INFO L93 Difference]: Finished difference Result 211 states and 293 transitions. [2022-12-13 19:03:03,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:03:03,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2022-12-13 19:03:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:03,294 INFO L225 Difference]: With dead ends: 211 [2022-12-13 19:03:03,294 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 19:03:03,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-12-13 19:03:03,296 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 206 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:03,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 490 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:03:03,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 19:03:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-12-13 19:03:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 80 states have internal predecessors, (96), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-12-13 19:03:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2022-12-13 19:03:03,317 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 86 [2022-12-13 19:03:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:03,317 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2022-12-13 19:03:03,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:03,317 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2022-12-13 19:03:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 19:03:03,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:03,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2022-12-13 19:03:03,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:03:03,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:03,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:03,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:03,523 INFO L85 PathProgramCache]: Analyzing trace with hash 757728024, now seen corresponding path program 2 times [2022-12-13 19:03:03,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:03,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986646354] [2022-12-13 19:03:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:03,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:03:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:03:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 19:03:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:03:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 19:03:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:03:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 19:03:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 19:03:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 19:03:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 19:03:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 19:03:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 19:03:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-12-13 19:03:04,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:04,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986646354] [2022-12-13 19:03:04,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986646354] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:04,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084785217] [2022-12-13 19:03:04,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:03:04,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:04,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:04,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:04,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:03:04,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:03:04,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:03:04,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 2604 conjuncts, 260 conjunts are in the unsatisfiable core [2022-12-13 19:03:04,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:06,760 INFO L217 Elim1Store]: Index analysis took 161 ms [2022-12-13 19:03:08,506 INFO L321 Elim1Store]: treesize reduction 496, result has 50.1 percent of original size [2022-12-13 19:03:08,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 125 select indices, 125 select index equivalence classes, 7626 disjoint index pairs (out of 7750 index pairs), introduced 125 new quantified variables, introduced 124 case distinctions, treesize of input 626 treesize of output 872 [2022-12-13 19:03:22,702 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 124 dual juncts. [2022-12-13 19:03:22,703 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 19:03:22,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:22,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:22,905 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) [2022-12-13 19:03:22,913 INFO L158 Benchmark]: Toolchain (without parser) took 26832.53ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 127.3MB in the beginning and 74.7MB in the end (delta: 52.7MB). Peak memory consumption was 205.3MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,914 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:03:22,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1818.26ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 71.8MB in the end (delta: 55.5MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.74ms. Allocated memory is still 172.0MB. Free memory was 71.8MB in the beginning and 59.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,918 INFO L158 Benchmark]: Boogie Preprocessor took 63.30ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 59.2MB in the beginning and 145.5MB in the end (delta: -86.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,920 INFO L158 Benchmark]: RCFGBuilder took 1363.23ms. Allocated memory is still 207.6MB. Free memory was 145.5MB in the beginning and 141.1MB in the end (delta: 4.5MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,921 INFO L158 Benchmark]: TraceAbstraction took 23485.89ms. Allocated memory was 207.6MB in the beginning and 299.9MB in the end (delta: 92.3MB). Free memory was 141.1MB in the beginning and 74.7MB in the end (delta: 66.4MB). Peak memory consumption was 180.2MB. Max. memory is 16.1GB. [2022-12-13 19:03:22,928 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1818.26ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 71.8MB in the end (delta: 55.5MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.74ms. Allocated memory is still 172.0MB. Free memory was 71.8MB in the beginning and 59.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.30ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 59.2MB in the beginning and 145.5MB in the end (delta: -86.3MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1363.23ms. Allocated memory is still 207.6MB. Free memory was 145.5MB in the beginning and 141.1MB in the end (delta: 4.5MB). Peak memory consumption was 87.3MB. Max. memory is 16.1GB. * TraceAbstraction took 23485.89ms. Allocated memory was 207.6MB in the beginning and 299.9MB in the end (delta: 92.3MB). Free memory was 141.1MB in the beginning and 74.7MB in the end (delta: 66.4MB). Peak memory consumption was 180.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-13 19:03:22,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- 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 [2022-12-13 19:03:24,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:03:24,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:03:24,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:03:24,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:03:24,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:03:24,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:03:24,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:03:24,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:03:24,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:03:24,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:03:24,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:03:24,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:03:24,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:03:24,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:03:24,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:03:24,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:03:24,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:03:24,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:03:24,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:03:24,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:03:24,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:03:24,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:03:24,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:03:24,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:03:24,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:03:24,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:03:24,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:03:24,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:03:24,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:03:24,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:03:24,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:03:24,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:03:24,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:03:24,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:03:24,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:03:24,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:03:24,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:03:24,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:03:24,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:03:24,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:03:24,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 19:03:24,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:03:24,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:03:24,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:03:24,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:03:24,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:03:24,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:03:24,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:03:24,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:03:24,645 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:03:24,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:03:24,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:03:24,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:03:24,646 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:03:24,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:03:24,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:03:24,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:03:24,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:03:24,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:03:24,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:03:24,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:03:24,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:03:24,649 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:03:24,649 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:03:24,649 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-12-13 19:03:24,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:03:24,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:03:24,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:03:24,903 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:03:24,903 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:03:24,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-12-13 19:03:27,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:03:27,964 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:03:27,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-12-13 19:03:27,990 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/961526bb4/2e6f6ee45b68499d903235c531d443ed/FLAG5bd4ff724 [2022-12-13 19:03:28,001 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/data/961526bb4/2e6f6ee45b68499d903235c531d443ed [2022-12-13 19:03:28,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:03:28,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:03:28,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:03:28,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:03:28,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:03:28,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:03:28" (1/1) ... [2022-12-13 19:03:28,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6036b363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:28, skipping insertion in model container [2022-12-13 19:03:28,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:03:28" (1/1) ... [2022-12-13 19:03:28,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:03:28,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:03:28,257 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-12-13 19:03:28,262 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-12-13 19:03:28,862 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,863 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,864 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,864 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,876 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:28,936 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:28,936 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:28,937 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:28,941 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 19:03:28,942 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 19:03:28,942 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 19:03:29,188 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 19:03:29,189 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 19:03:29,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 19:03:29,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 19:03:29,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 19:03:29,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 19:03:29,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 19:03:29,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 19:03:29,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 19:03:29,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 19:03:29,196 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 19:03:29,349 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 19:03:29,385 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 19:03:29,393 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,413 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,419 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,419 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,458 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:03:29,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:03:29,516 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 19:03:29,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:03:29,553 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-12-13 19:03:29,554 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-12-13 19:03:29,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,594 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,594 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,595 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,595 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,602 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,602 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,603 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,605 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 19:03:29,607 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 19:03:29,607 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 19:03:29,626 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 19:03:29,627 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 19:03:29,627 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 19:03:29,628 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 19:03:29,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 19:03:29,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 19:03:29,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 19:03:29,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 19:03:29,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 19:03:29,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 19:03:29,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 19:03:29,649 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 19:03:29,669 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 19:03:29,674 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,689 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,695 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,695 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,731 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:03:29,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:03:29,762 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:03:29,775 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-12-13 19:03:29,775 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_fb75e062-9597-4daa-8dc7-35baa5bc6f16/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-12-13 19:03:29,804 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,805 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,805 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,805 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,806 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,813 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,819 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,819 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,820 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 19:03:29,823 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 19:03:29,824 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 19:03:29,824 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 19:03:29,839 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 19:03:29,840 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 19:03:29,840 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 19:03:29,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 19:03:29,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 19:03:29,842 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 19:03:29,842 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 19:03:29,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 19:03:29,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 19:03:29,843 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 19:03:29,844 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 19:03:29,866 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 19:03:29,883 WARN L623 FunctionHandler]: Unknown extern function memchr [2022-12-13 19:03:29,888 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,901 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-13 19:03:29,907 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,907 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 19:03:29,925 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:03:29,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:03:30,126 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:03:30,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30 WrapperNode [2022-12-13 19:03:30,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:03:30,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:03:30,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:03:30,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:03:30,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,227 INFO L138 Inliner]: procedures = 710, calls = 2630, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 938 [2022-12-13 19:03:30,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:03:30,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:03:30,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:03:30,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:03:30,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:03:30,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:03:30,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:03:30,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:03:30,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (1/1) ... [2022-12-13 19:03:30,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:03:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:30,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:03:30,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:03:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-12-13 19:03:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-12-13 19:03:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-12-13 19:03:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-12-13 19:03:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:03:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 19:03:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 19:03:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 19:03:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-12-13 19:03:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:03:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 19:03:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-12-13 19:03:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 19:03:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:03:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-12-13 19:03:30,359 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 19:03:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-12-13 19:03:30,591 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:03:30,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:03:36,179 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:03:36,184 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:03:36,184 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:03:36,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:03:36 BoogieIcfgContainer [2022-12-13 19:03:36,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:03:36,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:03:36,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:03:36,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:03:36,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:03:28" (1/3) ... [2022-12-13 19:03:36,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620eb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:03:36, skipping insertion in model container [2022-12-13 19:03:36,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:30" (2/3) ... [2022-12-13 19:03:36,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3620eb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:03:36, skipping insertion in model container [2022-12-13 19:03:36,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:03:36" (3/3) ... [2022-12-13 19:03:36,192 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-12-13 19:03:36,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:03:36,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:03:36,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:03:36,246 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7947892b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:03:36,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 19:03:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-12-13 19:03:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 19:03:36,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:36,258 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-13 19:03:36,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:36,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash -132459702, now seen corresponding path program 1 times [2022-12-13 19:03:36,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:36,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742366122] [2022-12-13 19:03:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:36,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:36,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:36,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:36,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:03:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:37,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:03:37,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-12-13 19:03:37,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:37,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:37,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742366122] [2022-12-13 19:03:37,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742366122] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:37,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:37,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:03:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929246333] [2022-12-13 19:03:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:37,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:03:37,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:37,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:03:37,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:03:37,121 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:37,159 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2022-12-13 19:03:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:03:37,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-12-13 19:03:37,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:37,168 INFO L225 Difference]: With dead ends: 247 [2022-12-13 19:03:37,168 INFO L226 Difference]: Without dead ends: 115 [2022-12-13 19:03:37,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:03:37,174 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:37,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:03:37,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-13 19:03:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-12-13 19:03:37,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 74 states have internal predecessors, (89), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-12-13 19:03:37,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2022-12-13 19:03:37,213 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 84 [2022-12-13 19:03:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:37,214 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2022-12-13 19:03:37,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2022-12-13 19:03:37,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 19:03:37,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:37,218 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-13 19:03:37,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:37,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:37,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash 786611006, now seen corresponding path program 1 times [2022-12-13 19:03:37,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:37,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208081300] [2022-12-13 19:03:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:37,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:37,434 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:03:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:38,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:03:38,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:03:38,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:38,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:38,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208081300] [2022-12-13 19:03:38,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208081300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:38,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:38,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:03:38,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163800056] [2022-12-13 19:03:38,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:38,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:03:38,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:38,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:03:38,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:03:38,383 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 19:03:38,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:38,562 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2022-12-13 19:03:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:03:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2022-12-13 19:03:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:38,568 INFO L225 Difference]: With dead ends: 214 [2022-12-13 19:03:38,568 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 19:03:38,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:03:38,572 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 36 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:38,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 369 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:03:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 19:03:38,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-13 19:03:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2022-12-13 19:03:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2022-12-13 19:03:38,583 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 84 [2022-12-13 19:03:38,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:38,583 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2022-12-13 19:03:38,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-13 19:03:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2022-12-13 19:03:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-12-13 19:03:38,585 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:38,585 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 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] [2022-12-13 19:03:38,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:38,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:38,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:38,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash -89717469, now seen corresponding path program 1 times [2022-12-13 19:03:38,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:38,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185254063] [2022-12-13 19:03:38,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:38,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:38,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:38,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:38,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 19:03:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:39,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:03:39,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:39,835 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 19:03:39,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:39,835 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:39,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185254063] [2022-12-13 19:03:39,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185254063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:39,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:39,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:03:39,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463282394] [2022-12-13 19:03:39,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:03:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:03:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:03:39,837 INFO L87 Difference]: Start difference. First operand 118 states and 162 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:40,151 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2022-12-13 19:03:40,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:03:40,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2022-12-13 19:03:40,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:40,155 INFO L225 Difference]: With dead ends: 205 [2022-12-13 19:03:40,155 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 19:03:40,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:03:40,156 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 69 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:40,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 579 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:03:40,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 19:03:40,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-13 19:03:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-12-13 19:03:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-12-13 19:03:40,165 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 86 [2022-12-13 19:03:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:40,166 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-12-13 19:03:40,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:40,166 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-12-13 19:03:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 19:03:40,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:40,167 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2022-12-13 19:03:40,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 19:03:40,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:40,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:40,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:40,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1258406584, now seen corresponding path program 2 times [2022-12-13 19:03:40,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:40,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448644571] [2022-12-13 19:03:40,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:03:40,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:40,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:40,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:40,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 19:03:46,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 19:03:46,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:03:46,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:03:46,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-12-13 19:03:46,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:46,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:46,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448644571] [2022-12-13 19:03:46,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448644571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:46,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:46,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:03:46,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055968224] [2022-12-13 19:03:46,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:46,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:03:46,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:03:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:03:46,433 INFO L87 Difference]: Start difference. First operand 118 states and 159 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:48,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:03:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:48,883 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2022-12-13 19:03:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:03:48,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2022-12-13 19:03:48,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:48,888 INFO L225 Difference]: With dead ends: 220 [2022-12-13 19:03:48,888 INFO L226 Difference]: Without dead ends: 138 [2022-12-13 19:03:48,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:03:48,889 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 78 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:48,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 837 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 19:03:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-13 19:03:48,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 119. [2022-12-13 19:03:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 78 states have internal predecessors, (91), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2022-12-13 19:03:48,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2022-12-13 19:03:48,898 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 88 [2022-12-13 19:03:48,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:48,899 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2022-12-13 19:03:48,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:48,899 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2022-12-13 19:03:48,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 19:03:48,900 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:48,900 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:03:48,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 19:03:49,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:49,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:49,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1135513054, now seen corresponding path program 1 times [2022-12-13 19:03:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483192701] [2022-12-13 19:03:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:49,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:49,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:49,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:49,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 19:03:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:50,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:03:50,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:50,144 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-12-13 19:03:50,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:50,145 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:50,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483192701] [2022-12-13 19:03:50,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [483192701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:50,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:50,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:03:50,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380118009] [2022-12-13 19:03:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:03:50,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:03:50,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:50,146 INFO L87 Difference]: Start difference. First operand 119 states and 160 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:50,279 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2022-12-13 19:03:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:03:50,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2022-12-13 19:03:50,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:50,283 INFO L225 Difference]: With dead ends: 198 [2022-12-13 19:03:50,283 INFO L226 Difference]: Without dead ends: 120 [2022-12-13 19:03:50,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:50,284 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:50,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:03:50,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-13 19:03:50,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-12-13 19:03:50,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2022-12-13 19:03:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2022-12-13 19:03:50,291 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 91 [2022-12-13 19:03:50,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:50,292 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2022-12-13 19:03:50,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:03:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2022-12-13 19:03:50,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 19:03:50,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:50,293 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:03:50,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 19:03:50,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:50,494 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1722319068, now seen corresponding path program 1 times [2022-12-13 19:03:50,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:50,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1167898736] [2022-12-13 19:03:50,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:50,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:50,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:50,505 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:50,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 19:03:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:51,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 19:03:51,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-12-13 19:03:51,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:03:51,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:03:51,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1167898736] [2022-12-13 19:03:51,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1167898736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:51,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:51,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:03:51,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252569076] [2022-12-13 19:03:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:51,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:03:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:03:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:03:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:03:51,761 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:54,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:03:56,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:03:58,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:03:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:03:59,164 INFO L93 Difference]: Finished difference Result 196 states and 260 transitions. [2022-12-13 19:03:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:03:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 91 [2022-12-13 19:03:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:03:59,168 INFO L225 Difference]: With dead ends: 196 [2022-12-13 19:03:59,168 INFO L226 Difference]: Without dead ends: 120 [2022-12-13 19:03:59,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:03:59,169 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 80 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 40 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:03:59,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 793 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 125 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-12-13 19:03:59,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-12-13 19:03:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2022-12-13 19:03:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 78 states have internal predecessors, (92), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2022-12-13 19:03:59,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2022-12-13 19:03:59,177 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 91 [2022-12-13 19:03:59,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:03:59,177 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2022-12-13 19:03:59,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-12-13 19:03:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2022-12-13 19:03:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 19:03:59,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:03:59,178 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-12-13 19:03:59,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:59,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:59,380 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:03:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:59,381 INFO L85 PathProgramCache]: Analyzing trace with hash -751775534, now seen corresponding path program 1 times [2022-12-13 19:03:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:03:59,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592134485] [2022-12-13 19:03:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:59,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:03:59,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:03:59,390 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:03:59,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 19:04:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:00,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:04:00,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:04:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-13 19:04:00,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:04:00,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:04:00,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592134485] [2022-12-13 19:04:00,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592134485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:00,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:00,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:04:00,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534158370] [2022-12-13 19:04:00,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:00,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:04:00,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:04:00,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:04:00,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:04:00,490 INFO L87 Difference]: Start difference. First operand 119 states and 158 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-13 19:04:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:04:00,733 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2022-12-13 19:04:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:04:00,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2022-12-13 19:04:00,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:04:00,735 INFO L225 Difference]: With dead ends: 131 [2022-12-13 19:04:00,735 INFO L226 Difference]: Without dead ends: 129 [2022-12-13 19:04:00,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:04:00,735 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 17 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:04:00,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1023 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 19:04:00,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-13 19:04:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2022-12-13 19:04:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 85 states have internal predecessors, (98), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (41), 32 states have call predecessors, (41), 32 states have call successors, (41) [2022-12-13 19:04:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2022-12-13 19:04:00,743 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 92 [2022-12-13 19:04:00,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:04:00,744 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2022-12-13 19:04:00,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-12-13 19:04:00,744 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2022-12-13 19:04:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 19:04:00,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:00,745 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2022-12-13 19:04:00,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 19:04:00,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:04:00,946 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:00,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1289038822, now seen corresponding path program 1 times [2022-12-13 19:04:00,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:04:00,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894777585] [2022-12-13 19:04:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:00,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:04:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:04:00,956 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:04:00,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 19:04:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:06,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 19:04:06,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:04:06,852 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 7 [2022-12-13 19:04:06,919 WARN L859 $PredicateComparison]: unable to prove that (exists ((|bounded_malloc_#res.base| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |bounded_malloc_#res.base|)) (exists ((v_ArrVal_562 (_ BitVec 1))) (= |c_#valid| (store |c_old(#valid)| |bounded_malloc_#res.base| v_ArrVal_562))))) is different from true [2022-12-13 19:04:06,995 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 19:04:06,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-13 19:04:07,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 19:04:08,852 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-12-13 19:04:08,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 27 [2022-12-13 19:04:10,630 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-13 19:04:10,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 19:04:11,540 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-12-13 19:04:11,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-12-13 19:04:11,656 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 56 treesize of output 44 [2022-12-13 19:04:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 33 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-12-13 19:04:12,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:04:15,155 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_9| (_ BitVec 64))) (or (not (= (_ bv0 1) (select |c_#valid| |v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_9|))) (forall ((v_ArrVal_567 (Array (_ BitVec 64) (_ BitVec 8)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_9| v_ArrVal_567) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))))))) is different from false [2022-12-13 19:04:15,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:04:15,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894777585] [2022-12-13 19:04:15,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894777585] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:04:15,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2032226220] [2022-12-13 19:04:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:15,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 19:04:15,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 19:04:15,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 19:04:15,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb75e062-9597-4daa-8dc7-35baa5bc6f16/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-13 19:17:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:17:24,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 19:17:24,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:17:24,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-13 19:17:31,778 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-12-13 19:17:31,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 80 [2022-12-13 19:17:31,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,788 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,789 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 19:17:31,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 65 [2022-12-13 19:17:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-13 19:17:32,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:17:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:17:33,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 19:17:33,250 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 1 new quantified variables, introduced 8 case distinctions, treesize of input 455 treesize of output 158 [2022-12-13 19:17:33,456 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_1 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_1 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv6 64))) ((_ extract 55 48) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv5 64))) ((_ extract 47 40) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 7 0) (_ bv0 64)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_1) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd (_ bv1 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_1 (bvadd (_ bv2 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd (_ bv4 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)) ((_ extract 39 32) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv7 64))) ((_ extract 63 56) (_ bv0 64)))))) is different from false [2022-12-13 19:17:33,787 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_1 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_1 (_ bv3 64)))) (not (= (select v_arrayElimArr_1 (_ bv0 64)) ((_ extract 7 0) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv1 64)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_1 (_ bv2 64)))) (not (= (select v_arrayElimArr_1 (_ bv6 64)) ((_ extract 55 48) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv5 64)) ((_ extract 47 40) (_ bv0 64)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_1) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= (select v_arrayElimArr_1 (_ bv4 64)) ((_ extract 39 32) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv7 64)) ((_ extract 63 56) (_ bv0 64)))))) is different from false [2022-12-13 19:17:33,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2032226220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:17:33,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 19:17:33,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 31 [2022-12-13 19:17:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587905471] [2022-12-13 19:17:33,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 19:17:33,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 19:17:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:17:33,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 19:17:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1046, Unknown=18, NotChecked=276, Total=1482 [2022-12-13 19:17:33,920 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 31 states, 31 states have (on average 2.806451612903226) internal successors, (87), 29 states have internal predecessors, (87), 14 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (23), 13 states have call predecessors, (23), 12 states have call successors, (23)