./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- 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 11:13:37,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:13:37,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:13:37,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:13:37,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:13:37,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:13:37,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:13:37,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:13:37,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:13:37,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:13:37,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:13:37,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:13:37,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:13:37,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:13:37,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:13:37,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:13:37,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:13:37,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:13:37,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:13:37,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:13:37,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:13:37,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:13:37,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:13:37,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:13:37,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:13:37,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:13:37,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:13:37,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:13:37,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:13:37,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:13:37,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:13:37,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:13:37,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:13:37,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:13:37,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:13:37,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:13:37,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:13:37,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:13:37,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:13:37,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:13:37,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:13:37,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:13:37,727 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:13:37,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:13:37,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:13:37,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:13:37,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:13:37,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:13:37,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:13:37,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:13:37,736 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:13:37,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:13:37,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:13:37,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:13:37,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:13:37,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:13:37,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:13:37,738 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:13:37,739 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2022-12-13 11:13:37,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:13:37,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:13:37,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:13:37,923 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:13:37,924 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:13:37,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:13:40,514 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:13:40,761 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:13:40,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:13:40,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/11aaf56f2/ef57e613a3394288989acab2fc225882/FLAG24ce789b3 [2022-12-13 11:13:40,789 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/11aaf56f2/ef57e613a3394288989acab2fc225882 [2022-12-13 11:13:40,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:13:40,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:13:40,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:13:40,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:13:40,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:13:40,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:13:40" (1/1) ... [2022-12-13 11:13:40,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f84dbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:40, skipping insertion in model container [2022-12-13 11:13:40,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:13:40" (1/1) ... [2022-12-13 11:13:40,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:13:40,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:13:41,027 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2022-12-13 11:13:41,033 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2022-12-13 11:13:41,602 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:41,606 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,607 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,607 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,608 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,609 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,611 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:41,619 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,619 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:41,620 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,621 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,622 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,623 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,624 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:41,624 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,625 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:41,682 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:41,682 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:41,683 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:41,686 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 11:13:41,688 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 11:13:41,689 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 11:13:41,893 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:13:41,894 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 11:13:41,895 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 11:13:41,896 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 11:13:41,896 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 11:13:41,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 11:13:41,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 11:13:41,898 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 11:13:41,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 11:13:41,899 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 11:13:41,900 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 11:13:42,013 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 11:13:42,029 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,029 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,033 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,035 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,036 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,037 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,038 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,040 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,042 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,043 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,043 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,044 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,044 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,044 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,073 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 11:13:42,085 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,086 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,087 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:13:42,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,092 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,092 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,092 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,094 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,095 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,100 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:13:42,132 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:13:42,144 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2022-12-13 11:13:42,145 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2022-12-13 11:13:42,168 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,170 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,170 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,170 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,171 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,171 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,172 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,175 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,175 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,175 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,176 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,176 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,177 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,177 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,178 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,178 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,178 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,182 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:42,182 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:42,183 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:13:42,185 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 11:13:42,186 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 11:13:42,186 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 11:13:42,200 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:13:42,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 11:13:42,201 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 11:13:42,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 11:13:42,202 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 11:13:42,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 11:13:42,203 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 11:13:42,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 11:13:42,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 11:13:42,204 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 11:13:42,205 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 11:13:42,228 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 11:13:42,240 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,241 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,242 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,243 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,245 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,246 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,248 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,249 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,250 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,251 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,251 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,252 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,252 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,252 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:13:42,266 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 11:13:42,271 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,272 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,272 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,272 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,273 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,273 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:13:42,274 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,274 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,274 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,275 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,275 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,275 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,276 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,276 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,276 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,277 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,279 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,279 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,285 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,285 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:13:42,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:13:42,424 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:13:42,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42 WrapperNode [2022-12-13 11:13:42,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:13:42,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:13:42,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:13:42,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:13:42,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,543 INFO L138 Inliner]: procedures = 697, calls = 1904, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 839 [2022-12-13 11:13:42,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:13:42,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:13:42,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:13:42,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:13:42,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,603 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:13:42,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:13:42,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:13:42,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:13:42,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (1/1) ... [2022-12-13 11:13:42,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:13:42,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:42,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:13:42,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:13:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 11:13:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 11:13:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 11:13:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 11:13:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 11:13:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 11:13:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 11:13:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 11:13:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:13:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 11:13:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 11:13:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:13:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:13:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 11:13:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 11:13:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2022-12-13 11:13:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2022-12-13 11:13:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 11:13:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 11:13:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 11:13:42,679 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 11:13:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 11:13:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 11:13:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 11:13:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:13:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2022-12-13 11:13:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 11:13:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 11:13:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 11:13:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:13:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 11:13:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 11:13:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 11:13:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 11:13:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 11:13:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 11:13:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:13:42,922 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:13:42,924 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:13:43,738 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:13:43,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:13:43,744 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 11:13:43,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:13:43 BoogieIcfgContainer [2022-12-13 11:13:43,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:13:43,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:13:43,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:13:43,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:13:43,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:13:40" (1/3) ... [2022-12-13 11:13:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759377c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:13:43, skipping insertion in model container [2022-12-13 11:13:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:13:42" (2/3) ... [2022-12-13 11:13:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@759377c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:13:43, skipping insertion in model container [2022-12-13 11:13:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:13:43" (3/3) ... [2022-12-13 11:13:43,752 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:13:43,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:13:43,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:13:43,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:13:43,811 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;@5cbdeb72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:13:43,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:13:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 326 states, 197 states have (on average 1.233502538071066) internal successors, (243), 198 states have internal predecessors, (243), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-13 11:13:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 11:13:43,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:43,827 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:43,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:43,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:43,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1627804587, now seen corresponding path program 1 times [2022-12-13 11:13:43,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:43,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65993522] [2022-12-13 11:13:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:43,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:13:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:13:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:13:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:13:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 11:13:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 11:13:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:13:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:13:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 11:13:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:13:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:13:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:13:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:13:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:13:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:13:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:13:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:13:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 11:13:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 11:13:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 11:13:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 11:13:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 11:13:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:44,532 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-12-13 11:13:44,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:44,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65993522] [2022-12-13 11:13:44,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65993522] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:44,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:13:44,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:13:44,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283585908] [2022-12-13 11:13:44,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:44,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:13:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:13:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:13:44,573 INFO L87 Difference]: Start difference. First operand has 326 states, 197 states have (on average 1.233502538071066) internal successors, (243), 198 states have internal predecessors, (243), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 11:13:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:13:45,749 INFO L93 Difference]: Finished difference Result 731 states and 1164 transitions. [2022-12-13 11:13:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:13:45,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2022-12-13 11:13:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:13:45,760 INFO L225 Difference]: With dead ends: 731 [2022-12-13 11:13:45,760 INFO L226 Difference]: Without dead ends: 423 [2022-12-13 11:13:45,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:13:45,768 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 130 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:13:45,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 576 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 11:13:45,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-12-13 11:13:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 321. [2022-12-13 11:13:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 193 states have (on average 1.2020725388601037) internal successors, (232), 194 states have internal predecessors, (232), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2022-12-13 11:13:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 439 transitions. [2022-12-13 11:13:45,823 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 439 transitions. Word has length 156 [2022-12-13 11:13:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:13:45,824 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 439 transitions. [2022-12-13 11:13:45,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 11:13:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 439 transitions. [2022-12-13 11:13:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 11:13:45,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:45,827 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:45,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:13:45,827 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:45,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:45,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1159929871, now seen corresponding path program 1 times [2022-12-13 11:13:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:45,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673284814] [2022-12-13 11:13:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:45,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:13:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:13:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:13:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:13:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 11:13:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 11:13:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:13:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:13:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 11:13:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:13:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:13:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:13:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 11:13:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 11:13:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 11:13:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 11:13:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 11:13:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 11:13:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 11:13:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 11:13:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 11:13:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 11:13:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-12-13 11:13:46,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673284814] [2022-12-13 11:13:46,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673284814] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085556824] [2022-12-13 11:13:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:46,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:46,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:46,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:13:46,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:13:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:46,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:13:46,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:13:46,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:13:46,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085556824] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:46,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:13:46,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-12-13 11:13:46,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38020440] [2022-12-13 11:13:46,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:46,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:13:46,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:46,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:13:46,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:13:46,940 INFO L87 Difference]: Start difference. First operand 321 states and 439 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 11:13:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:13:47,152 INFO L93 Difference]: Finished difference Result 596 states and 820 transitions. [2022-12-13 11:13:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:13:47,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2022-12-13 11:13:47,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:13:47,156 INFO L225 Difference]: With dead ends: 596 [2022-12-13 11:13:47,156 INFO L226 Difference]: Without dead ends: 323 [2022-12-13 11:13:47,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:13:47,159 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 456 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:13:47,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1495 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:13:47,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-12-13 11:13:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-12-13 11:13:47,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 194 states have (on average 1.2010309278350515) internal successors, (233), 196 states have internal predecessors, (233), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2022-12-13 11:13:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 444 transitions. [2022-12-13 11:13:47,191 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 444 transitions. Word has length 156 [2022-12-13 11:13:47,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:13:47,191 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 444 transitions. [2022-12-13 11:13:47,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 11:13:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 444 transitions. [2022-12-13 11:13:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 11:13:47,193 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:47,194 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:47,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:13:47,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:47,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:47,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1288218285, now seen corresponding path program 1 times [2022-12-13 11:13:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:47,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430773805] [2022-12-13 11:13:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:47,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:13:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 11:13:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 11:13:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 11:13:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 11:13:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 11:13:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 11:13:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:13:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 11:13:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 11:13:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 11:13:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 11:13:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 11:13:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 11:13:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:13:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 11:13:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 11:13:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 11:13:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 11:13:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 11:13:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 11:13:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 11:13:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 11:13:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 11:13:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 11:13:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-12-13 11:13:47,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:47,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430773805] [2022-12-13 11:13:47,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430773805] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:13:47,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713552034] [2022-12-13 11:13:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:47,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:47,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:47,944 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:13:47,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:13:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:48,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:13:48,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:13:48,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:13:48,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713552034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:48,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:13:48,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-12-13 11:13:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915743059] [2022-12-13 11:13:48,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:48,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:13:48,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:48,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:13:48,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-12-13 11:13:48,483 INFO L87 Difference]: Start difference. First operand 323 states and 444 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-13 11:13:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:13:48,816 INFO L93 Difference]: Finished difference Result 619 states and 867 transitions. [2022-12-13 11:13:48,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:13:48,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2022-12-13 11:13:48,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:13:48,819 INFO L225 Difference]: With dead ends: 619 [2022-12-13 11:13:48,819 INFO L226 Difference]: Without dead ends: 344 [2022-12-13 11:13:48,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:13:48,822 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 518 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:13:48,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 2155 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:13:48,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-12-13 11:13:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 342. [2022-12-13 11:13:48,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 210 states have (on average 1.2142857142857142) internal successors, (255), 212 states have internal predecessors, (255), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2022-12-13 11:13:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 481 transitions. [2022-12-13 11:13:48,850 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 481 transitions. Word has length 164 [2022-12-13 11:13:48,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:13:48,851 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 481 transitions. [2022-12-13 11:13:48,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-13 11:13:48,852 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 481 transitions. [2022-12-13 11:13:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-13 11:13:48,854 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:48,854 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:48,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:13:49,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:49,055 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1645223367, now seen corresponding path program 1 times [2022-12-13 11:13:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:49,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791026172] [2022-12-13 11:13:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:49,122 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 11:13:49,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273551354] [2022-12-13 11:13:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:49,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:49,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:49,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:13:49,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:13:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:49,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 2517 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:13:49,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:13:49,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:13:49,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:49,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791026172] [2022-12-13 11:13:49,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 11:13:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273551354] [2022-12-13 11:13:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273551354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:49,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:13:49,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:13:49,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634597033] [2022-12-13 11:13:49,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:49,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:13:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:13:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:13:49,609 INFO L87 Difference]: Start difference. First operand 342 states and 481 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 11:13:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:13:49,893 INFO L93 Difference]: Finished difference Result 644 states and 916 transitions. [2022-12-13 11:13:49,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:13:49,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2022-12-13 11:13:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:13:49,897 INFO L225 Difference]: With dead ends: 644 [2022-12-13 11:13:49,897 INFO L226 Difference]: Without dead ends: 350 [2022-12-13 11:13:49,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:13:49,898 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 480 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:13:49,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1829 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:13:49,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-12-13 11:13:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 342. [2022-12-13 11:13:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 210 states have (on average 1.2142857142857142) internal successors, (255), 212 states have internal predecessors, (255), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2022-12-13 11:13:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 481 transitions. [2022-12-13 11:13:49,915 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 481 transitions. Word has length 179 [2022-12-13 11:13:49,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:13:49,915 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 481 transitions. [2022-12-13 11:13:49,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 11:13:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 481 transitions. [2022-12-13 11:13:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-13 11:13:49,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:49,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:49,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:13:50,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:50,118 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:50,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:50,119 INFO L85 PathProgramCache]: Analyzing trace with hash 706739126, now seen corresponding path program 1 times [2022-12-13 11:13:50,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:50,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197440668] [2022-12-13 11:13:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:50,168 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 11:13:50,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [222910057] [2022-12-13 11:13:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:50,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:50,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:50,169 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:13:50,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:13:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:13:50,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 2589 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 11:13:50,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 11:13:50,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:13:50,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:13:50,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197440668] [2022-12-13 11:13:50,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 11:13:50,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222910057] [2022-12-13 11:13:50,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222910057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:13:50,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:13:50,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:13:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269083214] [2022-12-13 11:13:50,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:13:50,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:13:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:13:50,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:13:50,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:13:50,718 INFO L87 Difference]: Start difference. First operand 342 states and 481 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 11:13:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:13:51,132 INFO L93 Difference]: Finished difference Result 654 states and 929 transitions. [2022-12-13 11:13:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 11:13:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2022-12-13 11:13:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:13:51,137 INFO L225 Difference]: With dead ends: 654 [2022-12-13 11:13:51,137 INFO L226 Difference]: Without dead ends: 360 [2022-12-13 11:13:51,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-12-13 11:13:51,140 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 551 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:13:51,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 2456 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:13:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-12-13 11:13:51,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 342. [2022-12-13 11:13:51,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 210 states have (on average 1.2142857142857142) internal successors, (255), 212 states have internal predecessors, (255), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2022-12-13 11:13:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 481 transitions. [2022-12-13 11:13:51,157 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 481 transitions. Word has length 195 [2022-12-13 11:13:51,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:13:51,157 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 481 transitions. [2022-12-13 11:13:51,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 11:13:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 481 transitions. [2022-12-13 11:13:51,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 11:13:51,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:13:51,161 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:51,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:13:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:51,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:13:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:13:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1820952612, now seen corresponding path program 2 times [2022-12-13 11:13:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:13:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058805850] [2022-12-13 11:13:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:13:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:13:51,414 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 11:13:51,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372639213] [2022-12-13 11:13:51,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:13:51,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:13:51,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:13:51,416 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:13:51,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:13:51,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:13:52,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:13:52,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2730 conjuncts, 379 conjunts are in the unsatisfiable core [2022-12-13 11:13:52,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:13:52,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:13:52,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 22 [2022-12-13 11:13:54,895 INFO L217 Elim1Store]: Index analysis took 144 ms [2022-12-13 11:13:57,559 INFO L321 Elim1Store]: treesize reduction 652, result has 50.0 percent of original size [2022-12-13 11:13:57,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 164 select indices, 164 select index equivalence classes, 13203 disjoint index pairs (out of 13366 index pairs), introduced 164 new quantified variables, introduced 163 case distinctions, treesize of input 821 treesize of output 1145 [2022-12-13 11:14:48,590 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 163 dual juncts. [2022-12-13 11:14:48,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:14:48,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058805850] [2022-12-13 11:14:48,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 11:14:48,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372639213] [2022-12-13 11:14:48,591 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 11:14:48,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 11:14:48,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:14:48,793 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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) 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) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-12-13 11:14:48,802 INFO L158 Benchmark]: Toolchain (without parser) took 68009.63ms. Allocated memory was 119.5MB in the beginning and 339.7MB in the end (delta: 220.2MB). Free memory was 74.7MB in the beginning and 127.3MB in the end (delta: -52.6MB). Peak memory consumption was 234.1MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,803 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:14:48,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1631.68ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 74.7MB in the beginning and 89.0MB in the end (delta: -14.3MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.49ms. Allocated memory is still 161.5MB. Free memory was 89.0MB in the beginning and 78.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,805 INFO L158 Benchmark]: Boogie Preprocessor took 74.61ms. Allocated memory is still 161.5MB. Free memory was 78.6MB in the beginning and 71.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,806 INFO L158 Benchmark]: RCFGBuilder took 1127.39ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 71.1MB in the beginning and 78.7MB in the end (delta: -7.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,807 INFO L158 Benchmark]: TraceAbstraction took 65053.01ms. Allocated memory was 195.0MB in the beginning and 339.7MB in the end (delta: 144.7MB). Free memory was 77.6MB in the beginning and 127.3MB in the end (delta: -49.7MB). Peak memory consumption was 159.1MB. Max. memory is 16.1GB. [2022-12-13 11:14:48,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1631.68ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 74.7MB in the beginning and 89.0MB in the end (delta: -14.3MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.49ms. Allocated memory is still 161.5MB. Free memory was 89.0MB in the beginning and 78.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.61ms. Allocated memory is still 161.5MB. Free memory was 78.6MB in the beginning and 71.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1127.39ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 71.1MB in the beginning and 78.7MB in the end (delta: -7.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * TraceAbstraction took 65053.01ms. Allocated memory was 195.0MB in the beginning and 339.7MB in the end (delta: 144.7MB). Free memory was 77.6MB in the beginning and 127.3MB in the end (delta: -49.7MB). Peak memory consumption was 159.1MB. 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 11:14:48,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --- 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 11:14:50,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:14:50,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:14:50,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:14:50,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:14:50,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:14:50,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:14:50,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:14:50,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:14:50,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:14:50,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:14:50,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:14:50,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:14:50,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:14:50,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:14:50,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:14:50,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:14:50,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:14:50,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:14:50,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:14:50,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:14:50,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:14:50,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:14:50,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:14:50,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:14:50,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:14:50,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:14:50,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:14:50,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:14:50,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:14:50,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:14:50,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:14:50,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:14:50,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:14:50,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:14:50,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:14:50,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:14:50,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:14:50,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:14:50,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:14:50,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:14:50,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:14:50,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:14:50,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:14:50,464 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:14:50,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:14:50,465 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:14:50,465 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:14:50,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:14:50,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:14:50,466 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:14:50,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:14:50,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:14:50,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:14:50,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:14:50,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:14:50,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:14:50,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:14:50,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:14:50,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:14:50,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:14:50,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:14:50,469 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:14:50,470 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:14:50,470 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:14:50,470 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:14:50,470 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 [2022-12-13 11:14:50,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:14:50,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:14:50,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:14:50,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:14:50,699 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:14:50,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:14:53,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:14:53,577 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:14:53,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:14:53,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/35b47d5e9/7bbf4653701a4080b0e4b78c1545cd12/FLAG93aaf2a5a [2022-12-13 11:14:53,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/data/35b47d5e9/7bbf4653701a4080b0e4b78c1545cd12 [2022-12-13 11:14:53,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:14:53,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:14:53,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:14:53,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:14:53,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:14:53,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:14:53" (1/1) ... [2022-12-13 11:14:53,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717cbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:53, skipping insertion in model container [2022-12-13 11:14:53,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:14:53" (1/1) ... [2022-12-13 11:14:53,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:14:53,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:14:53,863 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2022-12-13 11:14:53,868 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2022-12-13 11:14:54,463 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,466 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,467 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,467 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,468 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,468 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,470 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,478 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,479 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,481 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,537 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:54,537 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:54,538 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:54,542 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 11:14:54,543 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 11:14:54,544 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 11:14:54,762 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:54,763 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 11:14:54,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 11:14:54,764 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 11:14:54,765 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 11:14:54,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 11:14:54,766 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 11:14:54,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 11:14:54,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 11:14:54,767 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 11:14:54,768 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 11:14:54,884 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 11:14:54,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,900 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,905 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,906 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,908 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,909 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,910 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,911 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,914 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,914 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,915 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,915 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,916 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:54,943 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 11:14:54,955 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,956 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,956 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,956 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,957 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,957 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,957 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,957 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:54,958 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,958 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,958 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,958 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,964 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,964 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,967 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,968 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,968 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,968 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,979 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,980 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,980 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:54,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:14:55,016 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 11:14:55,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:14:55,042 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2022-12-13 11:14:55,042 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2022-12-13 11:14:55,062 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,063 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,064 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,065 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,066 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,070 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,070 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,071 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,072 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,072 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,073 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,073 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,074 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,080 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,081 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,081 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,084 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 11:14:55,085 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 11:14:55,085 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 11:14:55,117 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:55,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 11:14:55,119 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 11:14:55,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 11:14:55,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 11:14:55,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 11:14:55,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 11:14:55,123 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 11:14:55,123 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 11:14:55,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 11:14:55,124 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 11:14:55,149 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 11:14:55,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,161 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,162 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,164 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,165 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,166 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,167 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,169 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,170 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,170 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,171 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,171 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,171 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,172 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,193 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 11:14:55,198 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,199 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,200 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,200 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,201 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,201 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:55,201 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,202 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,202 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,202 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,202 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,203 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,203 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,204 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,204 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,204 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,207 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,208 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,215 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:14:55,236 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:14:55,249 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4504,4517] [2022-12-13 11:14:55,249 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_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_down_harness.i[4564,4577] [2022-12-13 11:14:55,280 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,282 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,283 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,283 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,283 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,284 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,288 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,288 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,298 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,299 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,299 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,299 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,305 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,305 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,306 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 11:14:55,308 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 11:14:55,309 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 11:14:55,309 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 11:14:55,327 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:55,327 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 11:14:55,328 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 11:14:55,328 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 11:14:55,329 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 11:14:55,329 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 11:14:55,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 11:14:55,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 11:14:55,330 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 11:14:55,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 11:14:55,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 11:14:55,353 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 11:14:55,362 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,363 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,363 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,365 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,366 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,366 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,367 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,368 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,376 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,376 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,376 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,377 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,377 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,377 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 11:14:55,392 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 11:14:55,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,396 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,397 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,397 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,397 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,397 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 11:14:55,398 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,398 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,398 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,398 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,398 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,399 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,399 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,400 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,402 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,402 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,407 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,407 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,407 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 11:14:55,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:14:55,645 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:14:55,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55 WrapperNode [2022-12-13 11:14:55,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:14:55,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:14:55,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:14:55,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:14:55,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,765 INFO L138 Inliner]: procedures = 717, calls = 1904, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 833 [2022-12-13 11:14:55,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:14:55,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:14:55,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:14:55,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:14:55,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:14:55,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:14:55,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:14:55,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:14:55,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (1/1) ... [2022-12-13 11:14:55,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:14:55,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:14:55,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:14:55,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 11:14:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 11:14:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 11:14:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 11:14:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 11:14:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 11:14:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 11:14:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 11:14:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-13 11:14:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 11:14:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 11:14:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 11:14:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 11:14:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 11:14:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 11:14:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 11:14:55,880 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-13 11:14:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2022-12-13 11:14:55,881 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2022-12-13 11:14:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 11:14:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 11:14:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 11:14:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 11:14:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 11:14:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 11:14:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 11:14:55,889 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 11:14:55,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 11:14:55,890 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 11:14:55,890 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 11:14:56,152 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:14:56,154 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:14:58,061 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:14:58,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:14:58,068 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 11:14:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:14:58 BoogieIcfgContainer [2022-12-13 11:14:58,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:14:58,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:14:58,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:14:58,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:14:58,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:14:53" (1/3) ... [2022-12-13 11:14:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420aa9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:14:58, skipping insertion in model container [2022-12-13 11:14:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:14:55" (2/3) ... [2022-12-13 11:14:58,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420aa9f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:14:58, skipping insertion in model container [2022-12-13 11:14:58,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:14:58" (3/3) ... [2022-12-13 11:14:58,076 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2022-12-13 11:14:58,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:14:58,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:14:58,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:14:58,137 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;@17db6171, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:14:58,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:14:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 324 states, 195 states have (on average 1.235897435897436) internal successors, (241), 196 states have internal predecessors, (241), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2022-12-13 11:14:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 11:14:58,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:14:58,154 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:58,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:14:58,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:58,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1926734945, now seen corresponding path program 1 times [2022-12-13 11:14:58,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:14:58,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953857361] [2022-12-13 11:14:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:58,173 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 11:14:58,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:14:58,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:58,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:58,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:14:58,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:14:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-13 11:14:58,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:14:58,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:14:58,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953857361] [2022-12-13 11:14:58,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953857361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:14:58,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:14:58,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:14:58,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670448278] [2022-12-13 11:14:58,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:14:58,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:14:58,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:14:58,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:14:58,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:14:58,930 INFO L87 Difference]: Start difference. First operand has 324 states, 195 states have (on average 1.235897435897436) internal successors, (241), 196 states have internal predecessors, (241), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 11:14:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:14:58,979 INFO L93 Difference]: Finished difference Result 625 states and 944 transitions. [2022-12-13 11:14:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:14:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2022-12-13 11:14:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:14:58,988 INFO L225 Difference]: With dead ends: 625 [2022-12-13 11:14:58,988 INFO L226 Difference]: Without dead ends: 319 [2022-12-13 11:14:58,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 155 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 11:14:58,995 INFO L413 NwaCegarLoop]: 442 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, 442 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 11:14:58,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:14:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-12-13 11:14:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-12-13 11:14:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 191 states have (on average 1.2041884816753927) internal successors, (230), 192 states have internal predecessors, (230), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2022-12-13 11:14:59,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 437 transitions. [2022-12-13 11:14:59,042 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 437 transitions. Word has length 156 [2022-12-13 11:14:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:14:59,043 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 437 transitions. [2022-12-13 11:14:59,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-13 11:14:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 437 transitions. [2022-12-13 11:14:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-12-13 11:14:59,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:14:59,047 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:14:59,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:59,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:59,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:14:59,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:14:59,250 INFO L85 PathProgramCache]: Analyzing trace with hash -860999513, now seen corresponding path program 1 times [2022-12-13 11:14:59,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:14:59,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867182849] [2022-12-13 11:14:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:14:59,257 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 11:14:59,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:14:59,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:59,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:14:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:14:59,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:14:59,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:15:00,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:00,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:00,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867182849] [2022-12-13 11:15:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867182849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:00,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:00,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:15:00,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359388718] [2022-12-13 11:15:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:15:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:00,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:15:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:15:00,133 INFO L87 Difference]: Start difference. First operand 319 states and 437 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 11:15:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:00,445 INFO L93 Difference]: Finished difference Result 592 states and 816 transitions. [2022-12-13 11:15:00,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:15:00,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 156 [2022-12-13 11:15:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:00,451 INFO L225 Difference]: With dead ends: 592 [2022-12-13 11:15:00,451 INFO L226 Difference]: Without dead ends: 321 [2022-12-13 11:15:00,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:15:00,454 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 47 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:00,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1574 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:15:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-12-13 11:15:00,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2022-12-13 11:15:00,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 192 states have (on average 1.203125) internal successors, (231), 194 states have internal predecessors, (231), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2022-12-13 11:15:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 442 transitions. [2022-12-13 11:15:00,493 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 442 transitions. Word has length 156 [2022-12-13 11:15:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:00,494 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 442 transitions. [2022-12-13 11:15:00,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 11:15:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 442 transitions. [2022-12-13 11:15:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-12-13 11:15:00,497 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:00,497 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:00,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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)] Ended with exit code 0 [2022-12-13 11:15:00,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:00,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:00,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1740163981, now seen corresponding path program 1 times [2022-12-13 11:15:00,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:00,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287478469] [2022-12-13 11:15:00,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:00,706 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 11:15:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:00,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:00,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:01,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:15:01,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:15:01,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:01,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:01,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287478469] [2022-12-13 11:15:01,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287478469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:01,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:01,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:15:01,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979839202] [2022-12-13 11:15:01,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:01,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:15:01,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:01,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:15:01,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:01,647 INFO L87 Difference]: Start difference. First operand 321 states and 442 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-13 11:15:02,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:02,271 INFO L93 Difference]: Finished difference Result 615 states and 863 transitions. [2022-12-13 11:15:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:15:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 164 [2022-12-13 11:15:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:02,276 INFO L225 Difference]: With dead ends: 615 [2022-12-13 11:15:02,276 INFO L226 Difference]: Without dead ends: 342 [2022-12-13 11:15:02,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:02,278 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 99 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:02,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 2276 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:15:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-12-13 11:15:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 340. [2022-12-13 11:15:02,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 210 states have internal predecessors, (253), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2022-12-13 11:15:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 479 transitions. [2022-12-13 11:15:02,293 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 479 transitions. Word has length 164 [2022-12-13 11:15:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:02,294 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 479 transitions. [2022-12-13 11:15:02,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-12-13 11:15:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 479 transitions. [2022-12-13 11:15:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-13 11:15:02,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:02,296 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:02,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:02,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:02,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:02,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:02,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2064550921, now seen corresponding path program 1 times [2022-12-13 11:15:02,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:02,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442332584] [2022-12-13 11:15:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:02,499 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 11:15:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:02,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:02,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 1587 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:15:03,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-12-13 11:15:03,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:03,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:03,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442332584] [2022-12-13 11:15:03,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442332584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:03,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:03,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:15:03,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214217658] [2022-12-13 11:15:03,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:03,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:15:03,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:15:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:15:03,471 INFO L87 Difference]: Start difference. First operand 340 states and 479 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 11:15:03,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:03,859 INFO L93 Difference]: Finished difference Result 640 states and 912 transitions. [2022-12-13 11:15:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:15:03,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 179 [2022-12-13 11:15:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:03,862 INFO L225 Difference]: With dead ends: 640 [2022-12-13 11:15:03,862 INFO L226 Difference]: Without dead ends: 348 [2022-12-13 11:15:03,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:03,864 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 70 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:03,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1931 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:15:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-12-13 11:15:03,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 340. [2022-12-13 11:15:03,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 208 states have (on average 1.2163461538461537) internal successors, (253), 210 states have internal predecessors, (253), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2022-12-13 11:15:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 479 transitions. [2022-12-13 11:15:03,878 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 479 transitions. Word has length 179 [2022-12-13 11:15:03,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:03,878 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 479 transitions. [2022-12-13 11:15:03,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2022-12-13 11:15:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 479 transitions. [2022-12-13 11:15:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-13 11:15:03,880 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:03,880 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:03,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:04,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:04,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:04,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:04,082 INFO L85 PathProgramCache]: Analyzing trace with hash 587208436, now seen corresponding path program 1 times [2022-12-13 11:15:04,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:04,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512290201] [2022-12-13 11:15:04,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:04,085 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 11:15:04,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:04,086 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:04,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:05,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:05,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-12-13 11:15:05,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:05,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:05,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512290201] [2022-12-13 11:15:05,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512290201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:05,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:05,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:15:05,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938184963] [2022-12-13 11:15:05,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:05,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:15:05,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:05,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:15:05,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:15:05,173 INFO L87 Difference]: Start difference. First operand 340 states and 479 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 11:15:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:06,067 INFO L93 Difference]: Finished difference Result 662 states and 941 transitions. [2022-12-13 11:15:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 11:15:06,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2022-12-13 11:15:06,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:06,070 INFO L225 Difference]: With dead ends: 662 [2022-12-13 11:15:06,070 INFO L226 Difference]: Without dead ends: 370 [2022-12-13 11:15:06,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:06,073 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 142 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:06,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 2641 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:15:06,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-12-13 11:15:06,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 352. [2022-12-13 11:15:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 218 states have (on average 1.224770642201835) internal successors, (267), 220 states have internal predecessors, (267), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2022-12-13 11:15:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 495 transitions. [2022-12-13 11:15:06,093 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 495 transitions. Word has length 195 [2022-12-13 11:15:06,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:06,094 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 495 transitions. [2022-12-13 11:15:06,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-12-13 11:15:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 495 transitions. [2022-12-13 11:15:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 11:15:06,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:06,097 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:06,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:06,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:06,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1829094874, now seen corresponding path program 2 times [2022-12-13 11:15:06,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:06,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829679485] [2022-12-13 11:15:06,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:15:06,306 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 11:15:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:06,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:06,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:09,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:15:09,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:15:09,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1747 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:15:09,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-12-13 11:15:09,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:09,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:09,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829679485] [2022-12-13 11:15:09,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829679485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:09,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:09,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:15:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344592674] [2022-12-13 11:15:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:09,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:15:09,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:09,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:15:09,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:15:09,660 INFO L87 Difference]: Start difference. First operand 352 states and 495 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 11:15:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:13,919 INFO L93 Difference]: Finished difference Result 692 states and 993 transitions. [2022-12-13 11:15:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:15:13,921 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2022-12-13 11:15:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:13,923 INFO L225 Difference]: With dead ends: 692 [2022-12-13 11:15:13,923 INFO L226 Difference]: Without dead ends: 388 [2022-12-13 11:15:13,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:13,925 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 23 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:13,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2016 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-12-13 11:15:13,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-12-13 11:15:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 360. [2022-12-13 11:15:13,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 228 states have internal predecessors, (277), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2022-12-13 11:15:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 505 transitions. [2022-12-13 11:15:13,944 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 505 transitions. Word has length 210 [2022-12-13 11:15:13,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:13,944 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 505 transitions. [2022-12-13 11:15:13,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 11:15:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 505 transitions. [2022-12-13 11:15:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 11:15:13,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:13,946 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:13,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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)] Ended with exit code 0 [2022-12-13 11:15:14,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:14,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:14,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:14,147 INFO L85 PathProgramCache]: Analyzing trace with hash -731767972, now seen corresponding path program 1 times [2022-12-13 11:15:14,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:14,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020406290] [2022-12-13 11:15:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:14,149 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 11:15:14,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:14,150 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:15,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:15,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-12-13 11:15:15,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:15,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:15,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020406290] [2022-12-13 11:15:15,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020406290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:15,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:15,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:15:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311526245] [2022-12-13 11:15:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:15:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:15:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:15,681 INFO L87 Difference]: Start difference. First operand 360 states and 505 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 11:15:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:18,546 INFO L93 Difference]: Finished difference Result 702 states and 1003 transitions. [2022-12-13 11:15:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 11:15:18,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 210 [2022-12-13 11:15:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:18,551 INFO L225 Difference]: With dead ends: 702 [2022-12-13 11:15:18,551 INFO L226 Difference]: Without dead ends: 390 [2022-12-13 11:15:18,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:18,553 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 20 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:18,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2438 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 11:15:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-12-13 11:15:18,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 364. [2022-12-13 11:15:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 230 states have (on average 1.2217391304347827) internal successors, (281), 232 states have internal predecessors, (281), 107 states have call successors, (107), 24 states have call predecessors, (107), 26 states have return successors, (121), 107 states have call predecessors, (121), 106 states have call successors, (121) [2022-12-13 11:15:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 509 transitions. [2022-12-13 11:15:18,565 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 509 transitions. Word has length 210 [2022-12-13 11:15:18,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:18,565 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 509 transitions. [2022-12-13 11:15:18,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-13 11:15:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 509 transitions. [2022-12-13 11:15:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-12-13 11:15:18,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:18,566 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:18,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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)] Forceful destruction successful, exit code 0 [2022-12-13 11:15:18,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:18,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:18,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1652156766, now seen corresponding path program 1 times [2022-12-13 11:15:18,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:18,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134130026] [2022-12-13 11:15:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:18,771 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 11:15:18,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:18,772 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:18,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:19,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 11:15:19,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:22,499 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_49| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_49|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_1|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_1| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_49| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_49|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_1|)))))) is different from true [2022-12-13 11:15:24,681 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_50| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_50|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_2|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_2| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_50| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_50|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_2|)))))) is different from true [2022-12-13 11:15:26,844 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_51| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_51|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_3|))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_3| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_51| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.base_BEFORE_CALL_51|) (bvadd (_ bv80 64) |v_ULTIMATE.start_aws_priority_queue_s_sift_down_harness_~#queue~0#1.offset_BEFORE_CALL_3|)))))) is different from true [2022-12-13 11:15:27,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-12-13 11:15:27,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-12-13 11:15:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 4 not checked. [2022-12-13 11:15:27,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:15:29,276 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-12-13 11:15:29,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-12-13 11:15:29,299 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-12-13 11:15:29,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-12-13 11:15:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-12-13 11:15:29,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:29,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134130026] [2022-12-13 11:15:29,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134130026] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:15:29,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:15:29,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 15 [2022-12-13 11:15:29,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719080421] [2022-12-13 11:15:29,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:15:29,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 11:15:29,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:29,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 11:15:29,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=109, Unknown=3, NotChecked=66, Total=210 [2022-12-13 11:15:29,408 INFO L87 Difference]: Start difference. First operand 364 states and 509 transitions. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 5 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) [2022-12-13 11:15:33,411 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 11:15:35,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 11:15:37,431 WARN L539 Checker$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 11:15:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:40,817 INFO L93 Difference]: Finished difference Result 729 states and 1040 transitions. [2022-12-13 11:15:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 11:15:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 5 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) Word has length 210 [2022-12-13 11:15:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:40,821 INFO L225 Difference]: With dead ends: 729 [2022-12-13 11:15:40,821 INFO L226 Difference]: Without dead ends: 444 [2022-12-13 11:15:40,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 406 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=115, Invalid=356, Unknown=3, NotChecked=126, Total=600 [2022-12-13 11:15:40,822 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 92 mSDsluCounter, 3417 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1606 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:40,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 3848 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 657 Invalid, 3 Unknown, 1606 Unchecked, 10.5s Time] [2022-12-13 11:15:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-12-13 11:15:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 386. [2022-12-13 11:15:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 245 states have (on average 1.2081632653061225) internal successors, (296), 247 states have internal predecessors, (296), 110 states have call successors, (110), 27 states have call predecessors, (110), 30 states have return successors, (130), 111 states have call predecessors, (130), 109 states have call successors, (130) [2022-12-13 11:15:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 536 transitions. [2022-12-13 11:15:40,842 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 536 transitions. Word has length 210 [2022-12-13 11:15:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:40,842 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 536 transitions. [2022-12-13 11:15:40,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 5 states have call successors, (41), 5 states have call predecessors, (41), 6 states have return successors, (38), 5 states have call predecessors, (38), 5 states have call successors, (38) [2022-12-13 11:15:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 536 transitions. [2022-12-13 11:15:40,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-12-13 11:15:40,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:40,845 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:40,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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)] Ended with exit code 0 [2022-12-13 11:15:41,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:41,047 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1292849073, now seen corresponding path program 1 times [2022-12-13 11:15:41,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:41,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392918052] [2022-12-13 11:15:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:41,054 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 11:15:41,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:41,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:41,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (10)] Waiting until timeout for monitored process [2022-12-13 11:15:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:42,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 1744 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:15:42,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:42,475 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-12-13 11:15:42,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:42,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:42,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392918052] [2022-12-13 11:15:42,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1392918052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:42,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:42,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 11:15:42,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535795166] [2022-12-13 11:15:42,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:42,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:15:42,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:42,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:15:42,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:42,478 INFO L87 Difference]: Start difference. First operand 386 states and 536 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 11:15:42,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:42,977 INFO L93 Difference]: Finished difference Result 674 states and 950 transitions. [2022-12-13 11:15:42,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:15:42,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 212 [2022-12-13 11:15:42,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:42,979 INFO L225 Difference]: With dead ends: 674 [2022-12-13 11:15:42,979 INFO L226 Difference]: Without dead ends: 388 [2022-12-13 11:15:42,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:15:42,980 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 82 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:42,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 2284 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:15:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-12-13 11:15:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2022-12-13 11:15:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 246 states have (on average 1.2073170731707317) internal successors, (297), 249 states have internal predecessors, (297), 110 states have call successors, (110), 27 states have call predecessors, (110), 31 states have return successors, (132), 111 states have call predecessors, (132), 109 states have call successors, (132) [2022-12-13 11:15:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 539 transitions. [2022-12-13 11:15:42,996 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 539 transitions. Word has length 212 [2022-12-13 11:15:42,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:42,996 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 539 transitions. [2022-12-13 11:15:42,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 11:15:42,997 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 539 transitions. [2022-12-13 11:15:42,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-13 11:15:42,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:42,998 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:43,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (10)] Ended with exit code 0 [2022-12-13 11:15:43,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:43,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:43,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1705802895, now seen corresponding path program 1 times [2022-12-13 11:15:43,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:43,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400957109] [2022-12-13 11:15:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:43,202 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 11:15:43,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:43,203 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:43,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (11)] Waiting until timeout for monitored process [2022-12-13 11:15:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:44,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:44,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:44,904 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-13 11:15:44,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:44,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:44,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400957109] [2022-12-13 11:15:44,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400957109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:44,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:44,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:15:44,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863404315] [2022-12-13 11:15:44,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:44,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:15:44,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:44,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:15:44,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:15:44,907 INFO L87 Difference]: Start difference. First operand 388 states and 539 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-13 11:15:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:45,714 INFO L93 Difference]: Finished difference Result 679 states and 957 transitions. [2022-12-13 11:15:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:15:45,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 235 [2022-12-13 11:15:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:45,716 INFO L225 Difference]: With dead ends: 679 [2022-12-13 11:15:45,716 INFO L226 Difference]: Without dead ends: 391 [2022-12-13 11:15:45,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:15:45,717 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 105 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:45,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2615 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 11:15:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-12-13 11:15:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 389. [2022-12-13 11:15:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 247 states have (on average 1.2064777327935223) internal successors, (298), 250 states have internal predecessors, (298), 110 states have call successors, (110), 27 states have call predecessors, (110), 31 states have return successors, (132), 111 states have call predecessors, (132), 109 states have call successors, (132) [2022-12-13 11:15:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 540 transitions. [2022-12-13 11:15:45,732 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 540 transitions. Word has length 235 [2022-12-13 11:15:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:45,733 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 540 transitions. [2022-12-13 11:15:45,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2022-12-13 11:15:45,733 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 540 transitions. [2022-12-13 11:15:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-12-13 11:15:45,734 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:45,734 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:45,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (11)] Ended with exit code 0 [2022-12-13 11:15:45,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:45,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1402500186, now seen corresponding path program 1 times [2022-12-13 11:15:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:45,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567703321] [2022-12-13 11:15:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:15:45,937 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 11:15:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:45,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:45,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (12)] Waiting until timeout for monitored process [2022-12-13 11:15:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:15:47,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:47,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 137 proven. 3 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-12-13 11:15:47,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:15:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-12-13 11:15:47,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:47,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567703321] [2022-12-13 11:15:47,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567703321] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:15:47,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:15:47,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2022-12-13 11:15:47,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527209271] [2022-12-13 11:15:47,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:15:47,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 11:15:47,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 11:15:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:15:47,684 INFO L87 Difference]: Start difference. First operand 389 states and 540 transitions. Second operand has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) [2022-12-13 11:15:48,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:48,559 INFO L93 Difference]: Finished difference Result 703 states and 989 transitions. [2022-12-13 11:15:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:15:48,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) Word has length 236 [2022-12-13 11:15:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:48,562 INFO L225 Difference]: With dead ends: 703 [2022-12-13 11:15:48,562 INFO L226 Difference]: Without dead ends: 414 [2022-12-13 11:15:48,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:15:48,563 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 165 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:48,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 2572 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 11:15:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-12-13 11:15:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 408. [2022-12-13 11:15:48,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 265 states have (on average 1.2150943396226415) internal successors, (322), 267 states have internal predecessors, (322), 111 states have call successors, (111), 27 states have call predecessors, (111), 31 states have return successors, (133), 113 states have call predecessors, (133), 110 states have call successors, (133) [2022-12-13 11:15:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 566 transitions. [2022-12-13 11:15:48,578 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 566 transitions. Word has length 236 [2022-12-13 11:15:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:48,578 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 566 transitions. [2022-12-13 11:15:48,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 7 states have call successors, (37) [2022-12-13 11:15:48,579 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 566 transitions. [2022-12-13 11:15:48,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-12-13 11:15:48,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:48,580 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:48,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (12)] Ended with exit code 0 [2022-12-13 11:15:48,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:48,782 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -192715456, now seen corresponding path program 2 times [2022-12-13 11:15:48,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:48,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575535565] [2022-12-13 11:15:48,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:15:48,790 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 11:15:48,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:48,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:48,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (13)] Waiting until timeout for monitored process [2022-12-13 11:15:52,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:15:52,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:15:52,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 11:15:52,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-12-13 11:15:52,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:52,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:52,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575535565] [2022-12-13 11:15:52,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575535565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:52,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:52,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 11:15:52,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483509107] [2022-12-13 11:15:52,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:52,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:15:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:52,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:15:52,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:15:52,758 INFO L87 Difference]: Start difference. First operand 408 states and 566 transitions. Second operand has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-13 11:15:54,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:54,218 INFO L93 Difference]: Finished difference Result 718 states and 1008 transitions. [2022-12-13 11:15:54,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 11:15:54,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) Word has length 251 [2022-12-13 11:15:54,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:54,221 INFO L225 Difference]: With dead ends: 718 [2022-12-13 11:15:54,221 INFO L226 Difference]: Without dead ends: 410 [2022-12-13 11:15:54,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-12-13 11:15:54,222 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 177 mSDsluCounter, 2887 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:54,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 3283 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 11:15:54,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-12-13 11:15:54,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 386. [2022-12-13 11:15:54,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 245 states have (on average 1.2081632653061225) internal successors, (296), 247 states have internal predecessors, (296), 110 states have call successors, (110), 27 states have call predecessors, (110), 30 states have return successors, (128), 111 states have call predecessors, (128), 109 states have call successors, (128) [2022-12-13 11:15:54,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 534 transitions. [2022-12-13 11:15:54,237 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 534 transitions. Word has length 251 [2022-12-13 11:15:54,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:54,237 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 534 transitions. [2022-12-13 11:15:54,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 6 states have call successors, (29) [2022-12-13 11:15:54,238 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 534 transitions. [2022-12-13 11:15:54,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-13 11:15:54,239 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:54,239 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:54,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (13)] Forceful destruction successful, exit code 0 [2022-12-13 11:15:54,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:54,441 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:54,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:54,442 INFO L85 PathProgramCache]: Analyzing trace with hash -556391816, now seen corresponding path program 3 times [2022-12-13 11:15:54,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:54,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990921046] [2022-12-13 11:15:54,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:15:54,447 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 11:15:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:54,448 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:54,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (14)] Waiting until timeout for monitored process [2022-12-13 11:15:56,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 11:15:56,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:15:56,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:15:56,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:15:56,853 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-12-13 11:15:56,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:15:56,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:15:56,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990921046] [2022-12-13 11:15:56,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990921046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:15:56,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:15:56,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 11:15:56,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743835211] [2022-12-13 11:15:56,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:15:56,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:15:56,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:15:56,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:15:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:15:56,854 INFO L87 Difference]: Start difference. First operand 386 states and 534 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 11:15:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:15:57,213 INFO L93 Difference]: Finished difference Result 668 states and 944 transitions. [2022-12-13 11:15:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:15:57,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 266 [2022-12-13 11:15:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:15:57,215 INFO L225 Difference]: With dead ends: 668 [2022-12-13 11:15:57,215 INFO L226 Difference]: Without dead ends: 386 [2022-12-13 11:15:57,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:15:57,216 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 2 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 11:15:57,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1986 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 11:15:57,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-12-13 11:15:57,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-12-13 11:15:57,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 245 states have (on average 1.2081632653061225) internal successors, (296), 247 states have internal predecessors, (296), 110 states have call successors, (110), 27 states have call predecessors, (110), 30 states have return successors, (127), 111 states have call predecessors, (127), 109 states have call successors, (127) [2022-12-13 11:15:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 533 transitions. [2022-12-13 11:15:57,230 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 533 transitions. Word has length 266 [2022-12-13 11:15:57,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:15:57,230 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 533 transitions. [2022-12-13 11:15:57,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 11:15:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 533 transitions. [2022-12-13 11:15:57,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-12-13 11:15:57,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:15:57,232 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:15:57,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (14)] Forceful destruction successful, exit code 0 [2022-12-13 11:15:57,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:57,433 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:15:57,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:15:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1648927450, now seen corresponding path program 4 times [2022-12-13 11:15:57,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:15:57,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685318837] [2022-12-13 11:15:57,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 11:15:57,437 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 11:15:57,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:15:57,438 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:15:57,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (15)] Waiting until timeout for monitored process [2022-12-13 11:15:59,747 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 11:15:59,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:15:59,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 11:15:59,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-12-13 11:16:00,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:00,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:00,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685318837] [2022-12-13 11:16:00,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685318837] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:00,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:00,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 11:16:00,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833806842] [2022-12-13 11:16:00,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:00,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 11:16:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:00,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 11:16:00,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 11:16:00,070 INFO L87 Difference]: Start difference. First operand 386 states and 533 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 11:16:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:01,020 INFO L93 Difference]: Finished difference Result 679 states and 951 transitions. [2022-12-13 11:16:01,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:01,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 281 [2022-12-13 11:16:01,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:01,022 INFO L225 Difference]: With dead ends: 679 [2022-12-13 11:16:01,022 INFO L226 Difference]: Without dead ends: 398 [2022-12-13 11:16:01,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:16:01,024 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 79 mSDsluCounter, 2601 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:01,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 3003 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 11:16:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-12-13 11:16:01,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2022-12-13 11:16:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 251 states have (on average 1.207171314741036) internal successors, (303), 253 states have internal predecessors, (303), 115 states have call successors, (115), 28 states have call predecessors, (115), 31 states have return successors, (132), 116 states have call predecessors, (132), 114 states have call successors, (132) [2022-12-13 11:16:01,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 550 transitions. [2022-12-13 11:16:01,037 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 550 transitions. Word has length 281 [2022-12-13 11:16:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:01,037 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 550 transitions. [2022-12-13 11:16:01,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 7 states have internal predecessors, (79), 5 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 11:16:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 550 transitions. [2022-12-13 11:16:01,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-12-13 11:16:01,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:01,039 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:01,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (15)] Forceful destruction successful, exit code 0 [2022-12-13 11:16:01,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:01,241 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:01,242 INFO L85 PathProgramCache]: Analyzing trace with hash 414007608, now seen corresponding path program 1 times [2022-12-13 11:16:01,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:01,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617596233] [2022-12-13 11:16:01,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:01,249 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 11:16:01,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:01,252 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:01,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (16)] Waiting until timeout for monitored process [2022-12-13 11:16:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:07,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2265 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:16:07,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:07,414 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:16:07,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2022-12-13 11:16:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-12-13 11:16:08,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:08,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:08,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617596233] [2022-12-13 11:16:08,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617596233] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:08,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:08,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 11:16:08,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121222673] [2022-12-13 11:16:08,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:08,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:16:08,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:08,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:16:08,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:16:08,985 INFO L87 Difference]: Start difference. First operand 398 states and 550 transitions. Second operand has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-13 11:16:11,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:16:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:14,886 INFO L93 Difference]: Finished difference Result 704 states and 987 transitions. [2022-12-13 11:16:14,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:16:14,889 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 296 [2022-12-13 11:16:14,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:14,890 INFO L225 Difference]: With dead ends: 704 [2022-12-13 11:16:14,890 INFO L226 Difference]: Without dead ends: 403 [2022-12-13 11:16:14,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:16:14,892 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 5 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:14,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2637 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 11:16:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-12-13 11:16:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 400. [2022-12-13 11:16:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 253 states have (on average 1.2055335968379446) internal successors, (305), 255 states have internal predecessors, (305), 115 states have call successors, (115), 28 states have call predecessors, (115), 31 states have return successors, (132), 116 states have call predecessors, (132), 114 states have call successors, (132) [2022-12-13 11:16:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 552 transitions. [2022-12-13 11:16:14,915 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 552 transitions. Word has length 296 [2022-12-13 11:16:14,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:14,915 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 552 transitions. [2022-12-13 11:16:14,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.142857142857142) internal successors, (113), 8 states have internal predecessors, (113), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-13 11:16:14,916 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 552 transitions. [2022-12-13 11:16:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-13 11:16:14,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:14,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:14,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (16)] Ended with exit code 0 [2022-12-13 11:16:15,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:15,119 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -643816991, now seen corresponding path program 1 times [2022-12-13 11:16:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055702113] [2022-12-13 11:16:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:15,121 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 11:16:15,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:15,122 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:15,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (17)] Waiting until timeout for monitored process [2022-12-13 11:16:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:16,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:16:16,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-12-13 11:16:16,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:16,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:16,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055702113] [2022-12-13 11:16:16,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055702113] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:16,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:16,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:16:16,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326554002] [2022-12-13 11:16:16,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:16,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:16:16,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:16,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:16:16,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:16:16,804 INFO L87 Difference]: Start difference. First operand 400 states and 552 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 11:16:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:16,883 INFO L93 Difference]: Finished difference Result 742 states and 1051 transitions. [2022-12-13 11:16:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:16:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 301 [2022-12-13 11:16:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:16,886 INFO L225 Difference]: With dead ends: 742 [2022-12-13 11:16:16,886 INFO L226 Difference]: Without dead ends: 405 [2022-12-13 11:16:16,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:16:16,887 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 7 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:16,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1286 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:16:16,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-12-13 11:16:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2022-12-13 11:16:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 254 states have (on average 1.204724409448819) internal successors, (306), 256 states have internal predecessors, (306), 115 states have call successors, (115), 28 states have call predecessors, (115), 31 states have return successors, (132), 116 states have call predecessors, (132), 114 states have call successors, (132) [2022-12-13 11:16:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 553 transitions. [2022-12-13 11:16:16,903 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 553 transitions. Word has length 301 [2022-12-13 11:16:16,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:16,904 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 553 transitions. [2022-12-13 11:16:16,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 11:16:16,904 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 553 transitions. [2022-12-13 11:16:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-13 11:16:16,905 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:16,905 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:16,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (17)] Ended with exit code 0 [2022-12-13 11:16:17,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:17,107 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1264414986, now seen corresponding path program 1 times [2022-12-13 11:16:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:17,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133133401] [2022-12-13 11:16:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:17,116 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 11:16:17,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:17,119 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:17,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (18)] Waiting until timeout for monitored process [2022-12-13 11:16:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:18,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 11:16:18,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-12-13 11:16:18,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:18,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:18,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133133401] [2022-12-13 11:16:18,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133133401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:18,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:18,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 11:16:18,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282918656] [2022-12-13 11:16:18,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:18,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:16:18,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:18,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:16:18,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:16:18,975 INFO L87 Difference]: Start difference. First operand 401 states and 553 transitions. Second operand has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 11:16:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:19,495 INFO L93 Difference]: Finished difference Result 750 states and 1046 transitions. [2022-12-13 11:16:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 11:16:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 301 [2022-12-13 11:16:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:19,497 INFO L225 Difference]: With dead ends: 750 [2022-12-13 11:16:19,498 INFO L226 Difference]: Without dead ends: 415 [2022-12-13 11:16:19,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:19,499 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 5 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:19,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3660 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 11:16:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-12-13 11:16:19,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 408. [2022-12-13 11:16:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 259 states have (on average 1.2007722007722008) internal successors, (311), 262 states have internal predecessors, (311), 115 states have call successors, (115), 28 states have call predecessors, (115), 33 states have return successors, (141), 117 states have call predecessors, (141), 114 states have call successors, (141) [2022-12-13 11:16:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 567 transitions. [2022-12-13 11:16:19,513 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 567 transitions. Word has length 301 [2022-12-13 11:16:19,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:19,514 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 567 transitions. [2022-12-13 11:16:19,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 11:16:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 567 transitions. [2022-12-13 11:16:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-12-13 11:16:19,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:19,515 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:19,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (18)] Ended with exit code 0 [2022-12-13 11:16:19,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:19,717 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2070873983, now seen corresponding path program 1 times [2022-12-13 11:16:19,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:19,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376687102] [2022-12-13 11:16:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:19,727 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 11:16:19,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:19,730 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:19,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (19)] Waiting until timeout for monitored process [2022-12-13 11:16:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:21,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 11:16:21,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 258 proven. 1 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-12-13 11:16:21,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:16:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-12-13 11:16:22,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:22,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376687102] [2022-12-13 11:16:22,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376687102] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:16:22,003 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:16:22,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:16:22,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931285835] [2022-12-13 11:16:22,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:16:22,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:16:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:16:22,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:16:22,005 INFO L87 Difference]: Start difference. First operand 408 states and 567 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 11:16:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:22,300 INFO L93 Difference]: Finished difference Result 771 states and 1107 transitions. [2022-12-13 11:16:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:16:22,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 304 [2022-12-13 11:16:22,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:22,303 INFO L225 Difference]: With dead ends: 771 [2022-12-13 11:16:22,303 INFO L226 Difference]: Without dead ends: 423 [2022-12-13 11:16:22,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:16:22,304 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 21 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:22,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1732 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:16:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-12-13 11:16:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2022-12-13 11:16:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 268 states have (on average 1.205223880597015) internal successors, (323), 271 states have internal predecessors, (323), 115 states have call successors, (115), 28 states have call predecessors, (115), 33 states have return successors, (141), 117 states have call predecessors, (141), 114 states have call successors, (141) [2022-12-13 11:16:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 579 transitions. [2022-12-13 11:16:22,319 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 579 transitions. Word has length 304 [2022-12-13 11:16:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:22,320 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 579 transitions. [2022-12-13 11:16:22,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-13 11:16:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 579 transitions. [2022-12-13 11:16:22,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-12-13 11:16:22,321 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:22,321 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:22,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (19)] Ended with exit code 0 [2022-12-13 11:16:22,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:22,523 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2014722693, now seen corresponding path program 1 times [2022-12-13 11:16:22,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:22,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318766679] [2022-12-13 11:16:22,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:22,532 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 11:16:22,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:22,535 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:22,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (20)] Waiting until timeout for monitored process [2022-12-13 11:16:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:27,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 11:16:27,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:28,413 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:16:28,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 17 [2022-12-13 11:16:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-12-13 11:16:28,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:28,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:28,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318766679] [2022-12-13 11:16:28,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318766679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:28,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:28,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 11:16:28,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671587802] [2022-12-13 11:16:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:28,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:16:28,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:16:28,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:16:28,524 INFO L87 Difference]: Start difference. First operand 417 states and 579 transitions. Second operand has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2022-12-13 11:16:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:34,921 INFO L93 Difference]: Finished difference Result 853 states and 1227 transitions. [2022-12-13 11:16:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 11:16:34,924 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) Word has length 310 [2022-12-13 11:16:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:34,926 INFO L225 Difference]: With dead ends: 853 [2022-12-13 11:16:34,926 INFO L226 Difference]: Without dead ends: 484 [2022-12-13 11:16:34,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-13 11:16:34,928 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 116 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 4099 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:34,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 4099 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-13 11:16:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-12-13 11:16:34,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 435. [2022-12-13 11:16:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 284 states have (on average 1.2077464788732395) internal successors, (343), 287 states have internal predecessors, (343), 115 states have call successors, (115), 28 states have call predecessors, (115), 35 states have return successors, (154), 119 states have call predecessors, (154), 114 states have call successors, (154) [2022-12-13 11:16:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 612 transitions. [2022-12-13 11:16:34,955 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 612 transitions. Word has length 310 [2022-12-13 11:16:34,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:34,955 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 612 transitions. [2022-12-13 11:16:34,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 7 states have call predecessors, (35), 7 states have call successors, (35) [2022-12-13 11:16:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 612 transitions. [2022-12-13 11:16:34,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-12-13 11:16:34,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:34,957 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:35,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (20)] Ended with exit code 0 [2022-12-13 11:16:35,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:35,158 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:35,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 907717947, now seen corresponding path program 1 times [2022-12-13 11:16:35,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:35,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676602752] [2022-12-13 11:16:35,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:35,160 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 11:16:35,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:35,161 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:35,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (21)] Waiting until timeout for monitored process [2022-12-13 11:16:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:36,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2303 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:16:36,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:36,882 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-13 11:16:36,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:36,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:36,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676602752] [2022-12-13 11:16:36,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676602752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:36,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:36,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:16:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649355475] [2022-12-13 11:16:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:36,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:16:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:16:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:16:36,883 INFO L87 Difference]: Start difference. First operand 435 states and 612 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 11:16:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:36,974 INFO L93 Difference]: Finished difference Result 837 states and 1196 transitions. [2022-12-13 11:16:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:16:36,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 310 [2022-12-13 11:16:36,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:36,976 INFO L225 Difference]: With dead ends: 837 [2022-12-13 11:16:36,976 INFO L226 Difference]: Without dead ends: 460 [2022-12-13 11:16:36,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:16:36,978 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 8 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:36,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1778 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:16:36,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-12-13 11:16:36,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 443. [2022-12-13 11:16:36,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.202054794520548) internal successors, (351), 295 states have internal predecessors, (351), 115 states have call successors, (115), 28 states have call predecessors, (115), 35 states have return successors, (154), 119 states have call predecessors, (154), 114 states have call successors, (154) [2022-12-13 11:16:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 620 transitions. [2022-12-13 11:16:36,995 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 620 transitions. Word has length 310 [2022-12-13 11:16:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:36,996 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 620 transitions. [2022-12-13 11:16:36,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 11:16:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 620 transitions. [2022-12-13 11:16:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-12-13 11:16:36,997 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:36,997 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:37,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (21)] Ended with exit code 0 [2022-12-13 11:16:37,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:37,198 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash 91694395, now seen corresponding path program 1 times [2022-12-13 11:16:37,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:37,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389083997] [2022-12-13 11:16:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:37,201 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 11:16:37,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:37,202 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:37,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (22)] Waiting until timeout for monitored process [2022-12-13 11:16:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:38,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 11:16:38,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-12-13 11:16:38,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:38,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:38,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389083997] [2022-12-13 11:16:38,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1389083997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:38,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:38,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:16:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341271051] [2022-12-13 11:16:38,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:38,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:16:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:16:38,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:16:38,879 INFO L87 Difference]: Start difference. First operand 443 states and 620 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 11:16:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:38,961 INFO L93 Difference]: Finished difference Result 838 states and 1215 transitions. [2022-12-13 11:16:38,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:16:38,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 310 [2022-12-13 11:16:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:38,965 INFO L225 Difference]: With dead ends: 838 [2022-12-13 11:16:38,965 INFO L226 Difference]: Without dead ends: 443 [2022-12-13 11:16:38,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:16:38,966 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 7 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:38,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1303 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:16:38,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-12-13 11:16:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-12-13 11:16:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.1952054794520548) internal successors, (349), 295 states have internal predecessors, (349), 115 states have call successors, (115), 28 states have call predecessors, (115), 35 states have return successors, (154), 119 states have call predecessors, (154), 114 states have call successors, (154) [2022-12-13 11:16:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 618 transitions. [2022-12-13 11:16:38,996 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 618 transitions. Word has length 310 [2022-12-13 11:16:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:38,997 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 618 transitions. [2022-12-13 11:16:38,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-13 11:16:38,997 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 618 transitions. [2022-12-13 11:16:38,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 11:16:38,999 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:38,999 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:39,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (22)] Ended with exit code 0 [2022-12-13 11:16:39,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:39,200 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:39,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1408820805, now seen corresponding path program 1 times [2022-12-13 11:16:39,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:39,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289820831] [2022-12-13 11:16:39,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:39,202 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 11:16:39,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:39,203 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:39,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (23)] Waiting until timeout for monitored process [2022-12-13 11:16:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:16:43,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 11:16:43,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:16:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-12-13 11:16:44,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:16:44,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:16:44,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289820831] [2022-12-13 11:16:44,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289820831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:16:44,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:16:44,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 11:16:44,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370786476] [2022-12-13 11:16:44,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:16:44,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 11:16:44,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:16:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 11:16:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:16:44,473 INFO L87 Difference]: Start difference. First operand 443 states and 618 transitions. Second operand has 13 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 8 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 11:16:49,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:16:49,383 INFO L93 Difference]: Finished difference Result 777 states and 1097 transitions. [2022-12-13 11:16:49,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:16:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 8 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 314 [2022-12-13 11:16:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:16:49,388 INFO L225 Difference]: With dead ends: 777 [2022-12-13 11:16:49,388 INFO L226 Difference]: Without dead ends: 443 [2022-12-13 11:16:49,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-12-13 11:16:49,389 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 95 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:16:49,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 4115 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-12-13 11:16:49,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-12-13 11:16:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2022-12-13 11:16:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 292 states have (on average 1.1917808219178083) internal successors, (348), 295 states have internal predecessors, (348), 115 states have call successors, (115), 28 states have call predecessors, (115), 35 states have return successors, (154), 119 states have call predecessors, (154), 114 states have call successors, (154) [2022-12-13 11:16:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 617 transitions. [2022-12-13 11:16:49,407 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 617 transitions. Word has length 314 [2022-12-13 11:16:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:16:49,407 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 617 transitions. [2022-12-13 11:16:49,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 8 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-12-13 11:16:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 617 transitions. [2022-12-13 11:16:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-12-13 11:16:49,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:16:49,409 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:49,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (23)] Ended with exit code 0 [2022-12-13 11:16:49,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:49,609 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:16:49,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:16:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash -147903555, now seen corresponding path program 1 times [2022-12-13 11:16:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:16:49,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920891003] [2022-12-13 11:16:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:16:49,612 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 11:16:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:16:49,612 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 11:16:49,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/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 (24)] Waiting until timeout for monitored process [2022-12-13 11:18:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:18:36,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 119 conjunts are in the unsatisfiable core [2022-12-13 11:18:36,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:18:36,385 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 11:18:36,972 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_199| (_ BitVec 64)) (v_ArrVal_3085 (_ BitVec 1))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_199|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_199| v_ArrVal_3085)))) is different from true [2022-12-13 11:18:39,138 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_61| (_ BitVec 64)) (v_ArrVal_3084 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_199| (_ BitVec 64)) (v_ArrVal_3085 (_ BitVec 1)) (v_ArrVal_3086 (_ BitVec 1))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_61| v_ArrVal_3084))) (and (= |c_#valid| (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_199| v_ArrVal_3085) |v_aws_array_list_is_valid_~#required_size~0.base_61| v_ArrVal_3086)) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_61|)) (= (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_199|) (_ bv0 1))))) is different from true [2022-12-13 11:18:39,271 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_200| (_ BitVec 64)) (v_ArrVal_3088 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_200|)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_200| v_ArrVal_3088)))) is different from true [2022-12-13 11:18:41,464 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_62| (_ BitVec 64)) (v_ArrVal_3084 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_199| (_ BitVec 64)) (v_ArrVal_3089 (_ BitVec 1)) (v_ArrVal_3085 (_ BitVec 1))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_62| v_ArrVal_3084))) (and (= (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_199| v_ArrVal_3085) |v_aws_array_list_is_valid_~#required_size~0.base_62| v_ArrVal_3089) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_62|)) (= (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_199|) (_ bv0 1))))) is different from true [2022-12-13 11:18:41,521 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_aws_array_list_is_valid_~#required_size~0.base_61| (_ BitVec 64)) (|v_aws_array_list_is_valid_~#required_size~0.base_62| (_ BitVec 64)) (v_ArrVal_3084 (_ BitVec 1)) (v_ArrVal_3095 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_199| (_ BitVec 64)) (v_ArrVal_3089 (_ BitVec 1)) (v_ArrVal_3085 (_ BitVec 1)) (v_ArrVal_3096 (_ BitVec 1)) (v_ArrVal_3086 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_202| (_ BitVec 64))) (let ((.cse1 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_61| v_ArrVal_3084))) (let ((.cse0 (store (store .cse1 |v___CPROVER_overflow_mult_~#c~1.base_199| v_ArrVal_3085) |v_aws_array_list_is_valid_~#required_size~0.base_61| v_ArrVal_3086))) (let ((.cse2 (store .cse0 |v_aws_array_list_is_valid_~#required_size~0.base_62| v_ArrVal_3095))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_61|)) (= (_ bv0 1) (select .cse0 |v_aws_array_list_is_valid_~#required_size~0.base_62|)) (= (select .cse1 |v___CPROVER_overflow_mult_~#c~1.base_199|) (_ bv0 1)) (= |c_#valid| (store (store .cse2 |v___CPROVER_overflow_mult_~#c~1.base_202| v_ArrVal_3096) |v_aws_array_list_is_valid_~#required_size~0.base_62| v_ArrVal_3089)) (= (select .cse2 |v___CPROVER_overflow_mult_~#c~1.base_202|) (_ bv0 1))))))) is different from true [2022-12-13 11:18:42,323 INFO L321 Elim1Store]: treesize reduction 232, result has 25.9 percent of original size [2022-12-13 11:18:42,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 7176 treesize of output 7164 [2022-12-13 11:18:46,295 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_3091 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_201| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_201|)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_201| v_ArrVal_3091)))) is different from true [2022-12-13 11:18:52,190 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3094 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3094) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3093 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3093) |c_#memory_$Pointer$.base|))) is different from true [2022-12-13 11:18:52,220 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (exists ((v_ArrVal_3094 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_3094) |c_#memory_$Pointer$.offset|)) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (exists ((v_ArrVal_3093 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_3093) |c_#memory_$Pointer$.base|)))) is different from true [2022-12-13 11:18:52,368 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 11:18:52,368 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 16 treesize of output 22 [2022-12-13 11:18:52,421 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 11:18:52,421 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 16 treesize of output 22 [2022-12-13 11:18:52,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 11:18:52,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 11:18:58,438 INFO L321 Elim1Store]: treesize reduction 38, result has 74.8 percent of original size [2022-12-13 11:18:58,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 1857 treesize of output 1925 [2022-12-13 11:19:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 243 proven. 63 refuted. 8 times theorem prover too weak. 141 trivial. 76 not checked. [2022-12-13 11:19:00,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:19:02,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-13 11:19:02,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-12-13 11:19:02,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2022-12-13 11:19:02,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 11:19:02,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:19:02,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920891003] [2022-12-13 11:19:02,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920891003] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:19:02,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1301354295] [2022-12-13 11:19:02,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:19:02,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 11:19:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 11:19:02,866 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 11:19:02,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b7fad4-3264-4683-946d-e1c5c2f8fc16/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process