./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f --- 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 14:59:38,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:59:38,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:59:38,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:59:38,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:59:38,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:59:38,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:59:38,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:59:38,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:59:38,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:59:38,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:59:38,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:59:38,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:59:38,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:59:38,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:59:38,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:59:38,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:59:38,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:59:38,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:59:38,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:59:38,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:59:38,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:59:38,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:59:38,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:59:38,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:59:38,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:59:38,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:59:38,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:59:38,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:59:38,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:59:38,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:59:38,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:59:38,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:59:38,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:59:38,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:59:38,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:59:38,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:59:38,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:59:38,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:59:38,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:59:38,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:59:38,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 14:59:38,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:59:38,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:59:38,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:59:38,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:59:38,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:59:38,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:59:38,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:59:38,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:59:38,353 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:59:38,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:59:38,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:59:38,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:38,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:59:38,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:59:38,356 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:59:38,356 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f [2022-12-13 14:59:38,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:59:38,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:59:38,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:59:38,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:59:38,550 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:59:38,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2022-12-13 14:59:41,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:59:41,388 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:59:41,388 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2022-12-13 14:59:41,405 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/56dba0331/9611e61b430648c287fc4fc2e70dbde3/FLAGe69abbd43 [2022-12-13 14:59:41,634 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/56dba0331/9611e61b430648c287fc4fc2e70dbde3 [2022-12-13 14:59:41,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:59:41,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:59:41,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:41,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:59:41,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:59:41,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:41" (1/1) ... [2022-12-13 14:59:41,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1736be0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:41, skipping insertion in model container [2022-12-13 14:59:41,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:59:41" (1/1) ... [2022-12-13 14:59:41,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:59:41,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:59:41,917 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2022-12-13 14:59:41,924 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2022-12-13 14:59:42,547 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:42,552 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,552 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,553 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,553 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,554 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,556 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:42,564 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,565 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:42,565 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,567 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,567 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,569 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,569 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:42,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,571 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:42,634 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:42,635 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:42,635 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:42,639 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 14:59:42,640 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 14:59:42,641 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 14:59:42,863 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 14:59:42,864 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 14:59:42,865 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 14:59:42,866 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 14:59:42,867 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 14:59:42,869 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 14:59:42,869 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 14:59:42,870 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 14:59:42,870 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 14:59:42,871 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 14:59:42,872 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 14:59:42,990 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 14:59:43,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,017 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,020 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,021 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,023 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,025 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,029 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,030 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,030 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,031 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,031 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,031 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,071 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 14:59:43,087 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,088 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,089 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,090 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,090 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,091 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,094 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,094 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,095 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,095 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,098 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,098 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,106 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,106 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:43,146 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:59:43,158 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2022-12-13 14:59:43,159 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2022-12-13 14:59:43,191 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,193 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,194 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,195 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,196 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,201 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,201 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,202 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,203 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,203 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,204 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,205 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,205 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,205 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,206 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,212 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:43,212 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:43,213 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 14:59:43,215 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 14:59:43,216 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 14:59:43,217 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 14:59:43,237 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 14:59:43,238 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 14:59:43,239 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 14:59:43,239 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 14:59:43,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 14:59:43,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 14:59:43,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 14:59:43,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 14:59:43,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 14:59:43,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 14:59:43,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 14:59:43,279 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 14:59:43,295 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,297 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,299 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,300 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,302 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,303 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,305 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,306 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,306 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,307 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,307 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,307 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 14:59:43,323 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 14:59:43,329 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,329 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,331 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 14:59:43,332 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,332 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,332 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,333 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,333 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,333 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,334 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,335 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,335 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,335 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,338 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,338 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,344 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,344 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,345 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 14:59:43,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:59:43,507 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:59:43,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43 WrapperNode [2022-12-13 14:59:43,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:59:43,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:43,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:59:43,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:59:43,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,635 INFO L138 Inliner]: procedures = 697, calls = 1879, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1144 [2022-12-13 14:59:43,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:59:43,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:59:43,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:59:43,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:59:43,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:59:43,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:59:43,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:59:43,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:59:43,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (1/1) ... [2022-12-13 14:59:43,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:59:43,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:43,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:59:43,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:59:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 14:59:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 14:59:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-12-13 14:59:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 14:59:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 14:59:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 14:59:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 14:59:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 14:59:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-12-13 14:59:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-13 14:59:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 14:59:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 14:59:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 14:59:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-13 14:59:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 14:59:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:59:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 14:59:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 14:59:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 14:59:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 14:59:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-12-13 14:59:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 14:59:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 14:59:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 14:59:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 14:59:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 14:59:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-13 14:59:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-12-13 14:59:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-13 14:59:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2022-12-13 14:59:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2022-12-13 14:59:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 14:59:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-12-13 14:59:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-12-13 14:59:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 14:59:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 14:59:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 14:59:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 14:59:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:59:44,074 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:59:44,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:59:45,182 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:59:45,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:59:45,189 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 14:59:45,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:45 BoogieIcfgContainer [2022-12-13 14:59:45,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:59:45,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:59:45,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:59:45,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:59:45,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:59:41" (1/3) ... [2022-12-13 14:59:45,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d839476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:45, skipping insertion in model container [2022-12-13 14:59:45,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:59:43" (2/3) ... [2022-12-13 14:59:45,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d839476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:59:45, skipping insertion in model container [2022-12-13 14:59:45,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:59:45" (3/3) ... [2022-12-13 14:59:45,197 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2022-12-13 14:59:45,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:59:45,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:59:45,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:59:45,260 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;@63b76f98, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:59:45,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:59:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 533 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 308 states have internal predecessors, (380), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2022-12-13 14:59:45,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 14:59:45,280 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:45,280 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:45,281 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2094771320, now seen corresponding path program 1 times [2022-12-13 14:59:45,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:45,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381483962] [2022-12-13 14:59:45,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:45,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:59:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 14:59:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 14:59:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:59:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:59:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 14:59:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:59:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:59:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 14:59:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 14:59:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 14:59:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 14:59:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:59:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 14:59:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:59:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 14:59:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:59:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 14:59:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 14:59:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 14:59:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 14:59:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 14:59:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 14:59:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 14:59:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 14:59:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 14:59:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,078 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-12-13 14:59:46,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:46,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381483962] [2022-12-13 14:59:46,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381483962] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:59:46,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957121496] [2022-12-13 14:59:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:46,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:46,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:46,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:46,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:59:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:46,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:59:46,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 14:59:46,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:46,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957121496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:46,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:59:46,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-12-13 14:59:46,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522702513] [2022-12-13 14:59:46,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:46,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:59:46,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:59:46,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-12-13 14:59:46,638 INFO L87 Difference]: Start difference. First operand has 533 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 308 states have internal predecessors, (380), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 14:59:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:46,953 INFO L93 Difference]: Finished difference Result 1055 states and 1663 transitions. [2022-12-13 14:59:46,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:59:46,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 162 [2022-12-13 14:59:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:46,971 INFO L225 Difference]: With dead ends: 1055 [2022-12-13 14:59:46,971 INFO L226 Difference]: Without dead ends: 528 [2022-12-13 14:59:46,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:59:46,982 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 762 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:46,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2791 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:59:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-12-13 14:59:47,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-12-13 14:59:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 300 states have (on average 1.2266666666666666) internal successors, (368), 303 states have internal predecessors, (368), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2022-12-13 14:59:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 760 transitions. [2022-12-13 14:59:47,072 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 760 transitions. Word has length 162 [2022-12-13 14:59:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:47,073 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 760 transitions. [2022-12-13 14:59:47,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 14:59:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 760 transitions. [2022-12-13 14:59:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 14:59:47,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:47,076 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:47,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:59:47,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 14:59:47,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:47,278 INFO L85 PathProgramCache]: Analyzing trace with hash 106032083, now seen corresponding path program 1 times [2022-12-13 14:59:47,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:47,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243309573] [2022-12-13 14:59:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:47,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:59:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 14:59:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 14:59:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 14:59:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:59:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 14:59:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 14:59:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:59:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 14:59:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 14:59:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:59:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 14:59:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:59:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:59:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 14:59:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 14:59:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 14:59:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 14:59:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 14:59:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 14:59:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 14:59:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 14:59:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 14:59:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 14:59:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-12-13 14:59:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 14:59:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 14:59:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2022-12-13 14:59:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:47,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243309573] [2022-12-13 14:59:47,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243309573] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:59:47,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480194638] [2022-12-13 14:59:47,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:47,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:47,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:47,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:47,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:59:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:48,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 2458 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:59:48,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 14:59:48,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:48,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480194638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:48,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:59:48,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-12-13 14:59:48,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54235836] [2022-12-13 14:59:48,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:48,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:59:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:59:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:59:48,517 INFO L87 Difference]: Start difference. First operand 528 states and 760 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 14:59:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:49,051 INFO L93 Difference]: Finished difference Result 1044 states and 1544 transitions. [2022-12-13 14:59:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:59:49,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 170 [2022-12-13 14:59:49,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:49,056 INFO L225 Difference]: With dead ends: 1044 [2022-12-13 14:59:49,056 INFO L226 Difference]: Without dead ends: 549 [2022-12-13 14:59:49,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-12-13 14:59:49,059 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 798 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:49,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 3911 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:59:49,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-12-13 14:59:49,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 547. [2022-12-13 14:59:49,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 319 states have internal predecessors, (390), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 14:59:49,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 818 transitions. [2022-12-13 14:59:49,087 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 818 transitions. Word has length 170 [2022-12-13 14:59:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:49,087 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 818 transitions. [2022-12-13 14:59:49,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 14:59:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 818 transitions. [2022-12-13 14:59:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-12-13 14:59:49,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:49,090 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:49,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:59:49,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:49,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:49,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:49,291 INFO L85 PathProgramCache]: Analyzing trace with hash 38840048, now seen corresponding path program 1 times [2022-12-13 14:59:49,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:49,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916289833] [2022-12-13 14:59:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:49,354 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:49,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918335389] [2022-12-13 14:59:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:49,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:49,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:49,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:49,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:59:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:49,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 14:59:49,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 14:59:49,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:49,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:49,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916289833] [2022-12-13 14:59:49,819 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:49,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918335389] [2022-12-13 14:59:49,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918335389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:49,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:49,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:59:49,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775668064] [2022-12-13 14:59:49,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:49,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:59:49,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:49,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:59:49,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:59:49,821 INFO L87 Difference]: Start difference. First operand 547 states and 818 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 14:59:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:50,113 INFO L93 Difference]: Finished difference Result 1069 states and 1622 transitions. [2022-12-13 14:59:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 14:59:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 185 [2022-12-13 14:59:50,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:50,119 INFO L225 Difference]: With dead ends: 1069 [2022-12-13 14:59:50,119 INFO L226 Difference]: Without dead ends: 555 [2022-12-13 14:59:50,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 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 14:59:50,123 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 781 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 3429 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:50,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 3429 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:59:50,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-12-13 14:59:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 547. [2022-12-13 14:59:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 319 states have internal predecessors, (390), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 14:59:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 818 transitions. [2022-12-13 14:59:50,154 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 818 transitions. Word has length 185 [2022-12-13 14:59:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:50,155 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 818 transitions. [2022-12-13 14:59:50,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 14:59:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 818 transitions. [2022-12-13 14:59:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-13 14:59:50,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:50,157 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:50,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:59:50,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:50,358 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:50,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:50,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1666437482, now seen corresponding path program 1 times [2022-12-13 14:59:50,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:50,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828176273] [2022-12-13 14:59:50,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:50,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:50,517 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:50,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257594153] [2022-12-13 14:59:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:50,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:50,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:50,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:50,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 14:59:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:50,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2671 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 14:59:51,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:51,088 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-12-13 14:59:51,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:51,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828176273] [2022-12-13 14:59:51,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:51,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257594153] [2022-12-13 14:59:51,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257594153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:51,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:51,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 14:59:51,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736671967] [2022-12-13 14:59:51,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:51,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 14:59:51,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:51,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 14:59:51,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:59:51,090 INFO L87 Difference]: Start difference. First operand 547 states and 818 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-12-13 14:59:51,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:51,619 INFO L93 Difference]: Finished difference Result 1079 states and 1631 transitions. [2022-12-13 14:59:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:59:51,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 201 [2022-12-13 14:59:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:51,622 INFO L225 Difference]: With dead ends: 1079 [2022-12-13 14:59:51,622 INFO L226 Difference]: Without dead ends: 565 [2022-12-13 14:59:51,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 195 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 14:59:51,625 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 831 mSDsluCounter, 3839 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:51,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 4507 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 14:59:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-13 14:59:51,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 547. [2022-12-13 14:59:51,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 319 states have internal predecessors, (390), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 14:59:51,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 818 transitions. [2022-12-13 14:59:51,645 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 818 transitions. Word has length 201 [2022-12-13 14:59:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:51,645 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 818 transitions. [2022-12-13 14:59:51,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-12-13 14:59:51,646 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 818 transitions. [2022-12-13 14:59:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-12-13 14:59:51,647 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:51,647 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 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] [2022-12-13 14:59:51,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 14:59:51,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:51,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1077329093, now seen corresponding path program 2 times [2022-12-13 14:59:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:51,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808345786] [2022-12-13 14:59:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:51,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:51,911 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:51,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176248347] [2022-12-13 14:59:51,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:59:51,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:51,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:51,913 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:51,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 14:59:52,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 14:59:52,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:59:52,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1813 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 14:59:52,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-12-13 14:59:52,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:52,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:52,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808345786] [2022-12-13 14:59:52,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:52,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176248347] [2022-12-13 14:59:52,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176248347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:52,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:52,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:59:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156287160] [2022-12-13 14:59:52,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:52,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:59:52,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:52,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:59:52,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:59:52,238 INFO L87 Difference]: Start difference. First operand 547 states and 818 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 14:59:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:52,383 INFO L93 Difference]: Finished difference Result 555 states and 826 transitions. [2022-12-13 14:59:52,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:59:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 216 [2022-12-13 14:59:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:52,388 INFO L225 Difference]: With dead ends: 555 [2022-12-13 14:59:52,388 INFO L226 Difference]: Without dead ends: 553 [2022-12-13 14:59:52,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 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 14:59:52,389 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 5 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:52,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3673 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:59:52,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-13 14:59:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2022-12-13 14:59:52,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 319 states have (on average 1.2319749216300941) internal successors, (393), 322 states have internal predecessors, (393), 196 states have call successors, (196), 34 states have call predecessors, (196), 35 states have return successors, (234), 195 states have call predecessors, (234), 194 states have call successors, (234) [2022-12-13 14:59:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 823 transitions. [2022-12-13 14:59:52,423 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 823 transitions. Word has length 216 [2022-12-13 14:59:52,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:52,424 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 823 transitions. [2022-12-13 14:59:52,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 14:59:52,424 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 823 transitions. [2022-12-13 14:59:52,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-12-13 14:59:52,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:52,427 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-12-13 14:59:52,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 14:59:52,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:52,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:52,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:52,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1231104660, now seen corresponding path program 3 times [2022-12-13 14:59:52,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:52,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235898811] [2022-12-13 14:59:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:52,683 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:52,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832619872] [2022-12-13 14:59:52,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 14:59:52,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:52,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:52,684 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 14:59:53,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 14:59:53,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:59:53,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 14:59:53,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-12-13 14:59:53,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 14:59:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 14:59:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:53,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235898811] [2022-12-13 14:59:53,804 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:53,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832619872] [2022-12-13 14:59:53,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832619872] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 14:59:53,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 14:59:53,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-12-13 14:59:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574803380] [2022-12-13 14:59:53,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 14:59:53,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:59:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:53,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:59:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:59:53,806 INFO L87 Difference]: Start difference. First operand 552 states and 823 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 14:59:54,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:54,090 INFO L93 Difference]: Finished difference Result 1055 states and 1595 transitions. [2022-12-13 14:59:54,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:59:54,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2022-12-13 14:59:54,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:54,095 INFO L225 Difference]: With dead ends: 1055 [2022-12-13 14:59:54,096 INFO L226 Difference]: Without dead ends: 560 [2022-12-13 14:59:54,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:59:54,099 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 41 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:54,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2785 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:59:54,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-12-13 14:59:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2022-12-13 14:59:54,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 322 states have (on average 1.2298136645962734) internal successors, (396), 324 states have internal predecessors, (396), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2022-12-13 14:59:54,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 830 transitions. [2022-12-13 14:59:54,134 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 830 transitions. Word has length 231 [2022-12-13 14:59:54,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:54,135 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 830 transitions. [2022-12-13 14:59:54,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 14:59:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 830 transitions. [2022-12-13 14:59:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 14:59:54,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:54,137 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:54,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 14:59:54,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 14:59:54,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:54,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash -839979893, now seen corresponding path program 4 times [2022-12-13 14:59:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:54,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647729796] [2022-12-13 14:59:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:54,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:54,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57972754] [2022-12-13 14:59:54,504 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 14:59:54,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:54,505 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:54,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 14:59:54,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 14:59:54,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:59:54,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 14:59:54,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-12-13 14:59:54,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:54,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647729796] [2022-12-13 14:59:54,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:54,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57972754] [2022-12-13 14:59:54,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57972754] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:54,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:54,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 14:59:54,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349705895] [2022-12-13 14:59:54,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:54,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 14:59:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:54,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 14:59:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:59:54,834 INFO L87 Difference]: Start difference. First operand 557 states and 830 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 14:59:55,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:55,257 INFO L93 Difference]: Finished difference Result 1176 states and 1774 transitions. [2022-12-13 14:59:55,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:59:55,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 246 [2022-12-13 14:59:55,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:55,261 INFO L225 Difference]: With dead ends: 1176 [2022-12-13 14:59:55,261 INFO L226 Difference]: Without dead ends: 670 [2022-12-13 14:59:55,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 14:59:55,264 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 154 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 5188 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:55,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 5188 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 14:59:55,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2022-12-13 14:59:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 654. [2022-12-13 14:59:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 388 states have (on average 1.2577319587628866) internal successors, (488), 392 states have internal predecessors, (488), 227 states have call successors, (227), 36 states have call predecessors, (227), 37 states have return successors, (279), 225 states have call predecessors, (279), 225 states have call successors, (279) [2022-12-13 14:59:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 994 transitions. [2022-12-13 14:59:55,290 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 994 transitions. Word has length 246 [2022-12-13 14:59:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:55,290 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 994 transitions. [2022-12-13 14:59:55,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 14:59:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 994 transitions. [2022-12-13 14:59:55,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-13 14:59:55,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:55,293 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:55,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 14:59:55,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:55,495 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash 43918934, now seen corresponding path program 1 times [2022-12-13 14:59:55,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:55,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318179074] [2022-12-13 14:59:55,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:55,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:55,660 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:55,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492690092] [2022-12-13 14:59:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:55,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:55,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:55,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 14:59:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:59:56,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 3144 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 14:59:56,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-12-13 14:59:56,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:59:56,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:59:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318179074] [2022-12-13 14:59:56,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 14:59:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492690092] [2022-12-13 14:59:56,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492690092] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:59:56,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:59:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 14:59:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854797011] [2022-12-13 14:59:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:59:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 14:59:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:59:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 14:59:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:59:56,187 INFO L87 Difference]: Start difference. First operand 654 states and 994 transitions. Second operand has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 14:59:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:59:56,804 INFO L93 Difference]: Finished difference Result 1184 states and 1797 transitions. [2022-12-13 14:59:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 14:59:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 254 [2022-12-13 14:59:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:59:56,810 INFO L225 Difference]: With dead ends: 1184 [2022-12-13 14:59:56,810 INFO L226 Difference]: Without dead ends: 575 [2022-12-13 14:59:56,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-12-13 14:59:56,813 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 831 mSDsluCounter, 4321 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 4986 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 14:59:56,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 4986 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 14:59:56,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-12-13 14:59:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2022-12-13 14:59:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 336 states have (on average 1.2351190476190477) internal successors, (415), 338 states have internal predecessors, (415), 199 states have call successors, (199), 35 states have call predecessors, (199), 36 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2022-12-13 14:59:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 855 transitions. [2022-12-13 14:59:56,832 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 855 transitions. Word has length 254 [2022-12-13 14:59:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:59:56,833 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 855 transitions. [2022-12-13 14:59:56,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 14:59:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 855 transitions. [2022-12-13 14:59:56,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-13 14:59:56,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:59:56,834 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:59:56,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 14:59:57,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:57,035 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:59:57,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:59:57,035 INFO L85 PathProgramCache]: Analyzing trace with hash 328287621, now seen corresponding path program 2 times [2022-12-13 14:59:57,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:59:57,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371512468] [2022-12-13 14:59:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:59:57,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:59:57,094 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 14:59:57,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391068215] [2022-12-13 14:59:57,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 14:59:57,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:59:57,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:59:57,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:59:57,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 14:59:57,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 14:59:57,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 14:59:57,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 3285 conjuncts, 339 conjunts are in the unsatisfiable core [2022-12-13 14:59:57,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:59:58,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 153 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 55 [2022-12-13 14:59:58,533 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 14:59:58,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 43 treesize of output 19 [2022-12-13 14:59:58,779 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 7 treesize of output 3 [2022-12-13 14:59:59,823 INFO L217 Elim1Store]: Index analysis took 118 ms [2022-12-13 15:00:01,235 INFO L321 Elim1Store]: treesize reduction 488, result has 50.1 percent of original size [2022-12-13 15:00:01,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 123 select indices, 123 select index equivalence classes, 7381 disjoint index pairs (out of 7503 index pairs), introduced 123 new quantified variables, introduced 122 case distinctions, treesize of input 616 treesize of output 858 [2022-12-13 15:00:22,138 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 122 dual juncts. [2022-12-13 15:00:22,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:00:22,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371512468] [2022-12-13 15:00:22,139 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 15:00:22,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391068215] [2022-12-13 15:00:22,139 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-12-13 15:00:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 15:00:22,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:00:22,341 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 15:00:22,349 INFO L158 Benchmark]: Toolchain (without parser) took 40710.91ms. Allocated memory was 134.2MB in the beginning and 283.1MB in the end (delta: 148.9MB). Free memory was 99.4MB in the beginning and 116.5MB in the end (delta: -17.1MB). Peak memory consumption was 212.9MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,350 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:00:22,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1868.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 80.8MB in the end (delta: 18.2MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.65ms. Allocated memory is still 161.5MB. Free memory was 80.8MB in the beginning and 69.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,353 INFO L158 Benchmark]: Boogie Preprocessor took 107.20ms. Allocated memory is still 161.5MB. Free memory was 69.1MB in the beginning and 104.6MB in the end (delta: -35.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,353 INFO L158 Benchmark]: RCFGBuilder took 1447.12ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.3MB in the beginning and 80.6MB in the end (delta: 23.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,354 INFO L158 Benchmark]: TraceAbstraction took 37155.34ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 79.6MB in the beginning and 116.5MB in the end (delta: -37.0MB). Peak memory consumption was 129.1MB. Max. memory is 16.1GB. [2022-12-13 15:00:22,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1868.67ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 99.0MB in the beginning and 80.8MB in the end (delta: 18.2MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.65ms. Allocated memory is still 161.5MB. Free memory was 80.8MB in the beginning and 69.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.20ms. Allocated memory is still 161.5MB. Free memory was 69.1MB in the beginning and 104.6MB in the end (delta: -35.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1447.12ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 104.3MB in the beginning and 80.6MB in the end (delta: 23.6MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * TraceAbstraction took 37155.34ms. Allocated memory was 195.0MB in the beginning and 283.1MB in the end (delta: 88.1MB). Free memory was 79.6MB in the beginning and 116.5MB in the end (delta: -37.0MB). Peak memory consumption was 129.1MB. 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 15:00:22,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f --- 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 15:00:23,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:00:23,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:00:23,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:00:23,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:00:23,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:00:23,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:00:23,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:00:23,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:00:23,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:00:23,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:00:23,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:00:23,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:00:23,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:00:23,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:00:23,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:00:23,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:00:23,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:00:23,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:00:23,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:00:23,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:00:23,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:00:23,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:00:23,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:00:23,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:00:23,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:00:23,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:00:23,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:00:23,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:00:23,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:00:23,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:00:23,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:00:23,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:00:23,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:00:23,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:00:23,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:00:23,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:00:23,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:00:23,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:00:23,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:00:23,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:00:23,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 15:00:23,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:00:23,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:00:23,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:00:23,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:00:23,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:00:23,905 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:00:23,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:00:23,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:00:23,906 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:00:23,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:00:23,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:00:23,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:00:23,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:00:23,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:00:23,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:00:23,908 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:00:23,908 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:00:23,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:00:23,908 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:00:23,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:00:23,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:00:23,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:00:23,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:00:23,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:23,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:00:23,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:00:23,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:00:23,910 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:00:23,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:00:23,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:00:23,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:00:23,911 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:00:23,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:00:23,911 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:00:23,911 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:00:23,911 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f [2022-12-13 15:00:24,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:00:24,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:00:24,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:00:24,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:00:24,148 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:00:24,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2022-12-13 15:00:26,754 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:00:27,096 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:00:27,096 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2022-12-13 15:00:27,119 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/3a763ee0a/a5e8eff187dd4c2eaafcbfda1c0d585c/FLAGbd5a3a55f [2022-12-13 15:00:27,129 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/data/3a763ee0a/a5e8eff187dd4c2eaafcbfda1c0d585c [2022-12-13 15:00:27,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:00:27,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:00:27,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:27,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:00:27,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:00:27,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:27" (1/1) ... [2022-12-13 15:00:27,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2874e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:27, skipping insertion in model container [2022-12-13 15:00:27,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:00:27" (1/1) ... [2022-12-13 15:00:27,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:00:27,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:00:27,412 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2022-12-13 15:00:27,419 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2022-12-13 15:00:27,998 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,003 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,004 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,004 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,005 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,006 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,009 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,021 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,021 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,022 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,023 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,024 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,026 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,027 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,027 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,028 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,028 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,098 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,099 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,100 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,105 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 15:00:28,108 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 15:00:28,108 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 15:00:28,345 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,346 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 15:00:28,347 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 15:00:28,348 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 15:00:28,349 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 15:00:28,350 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 15:00:28,351 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 15:00:28,351 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 15:00:28,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 15:00:28,352 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 15:00:28,353 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 15:00:28,465 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 15:00:28,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,485 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,487 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,488 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,489 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,490 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,493 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,493 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,494 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,494 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,526 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:00:28,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,540 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,543 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,544 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,544 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,544 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,546 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,547 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,552 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,552 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,553 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:28,594 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 15:00:28,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:00:28,643 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2022-12-13 15:00:28,644 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2022-12-13 15:00:28,679 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,682 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,683 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,683 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,683 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,685 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,690 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,690 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,691 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,692 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,692 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,693 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,693 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,694 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,694 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,694 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,701 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,701 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,702 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,704 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 15:00:28,705 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 15:00:28,706 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 15:00:28,730 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,731 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 15:00:28,732 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 15:00:28,733 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 15:00:28,734 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 15:00:28,734 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 15:00:28,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 15:00:28,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 15:00:28,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 15:00:28,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 15:00:28,736 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 15:00:28,760 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 15:00:28,772 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,773 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,775 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,776 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,777 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,778 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,779 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,780 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,780 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,781 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,781 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,781 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,805 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:00:28,808 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,809 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,809 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,809 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,809 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,810 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,810 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,810 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,810 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,811 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,812 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,814 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,815 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,818 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,819 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,819 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:28,832 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:00:28,840 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2022-12-13 15:00:28,841 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_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2022-12-13 15:00:28,872 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,874 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,875 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,877 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,881 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,881 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,882 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,882 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,883 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,884 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,884 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,884 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,885 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,889 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,894 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,895 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,895 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-12-13 15:00:28,897 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-12-13 15:00:28,898 WARN L623 FunctionHandler]: Unknown extern function htons [2022-12-13 15:00:28,898 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-12-13 15:00:28,923 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,923 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-12-13 15:00:28,924 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-12-13 15:00:28,925 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-12-13 15:00:28,925 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-12-13 15:00:28,926 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-12-13 15:00:28,926 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-12-13 15:00:28,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-12-13 15:00:28,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-12-13 15:00:28,927 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-12-13 15:00:28,928 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-12-13 15:00:28,946 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-12-13 15:00:28,959 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,960 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,962 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,963 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,964 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,965 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,966 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,966 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,966 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,967 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,967 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,968 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-12-13 15:00:28,986 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 15:00:28,990 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,990 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,990 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,990 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,991 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,991 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,991 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,991 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-12-13 15:00:28,992 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,992 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,992 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,992 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,993 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,993 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,993 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,994 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,994 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,994 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,996 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:28,996 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:29,001 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:29,001 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:29,002 WARN L1576 CHandler]: Possible shadowing of function index [2022-12-13 15:00:29,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:00:29,225 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:00:29,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29 WrapperNode [2022-12-13 15:00:29,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:00:29,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:29,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:00:29,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:00:29,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,321 INFO L138 Inliner]: procedures = 717, calls = 1879, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1120 [2022-12-13 15:00:29,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:00:29,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:00:29,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:00:29,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:00:29,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,375 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:00:29,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:00:29,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:00:29,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:00:29,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (1/1) ... [2022-12-13 15:00:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:00:29,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:00:29,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:00:29,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:00:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-12-13 15:00:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-12-13 15:00:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-12-13 15:00:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-12-13 15:00:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-12-13 15:00:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-13 15:00:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-13 15:00:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 15:00:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-12-13 15:00:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-12-13 15:00:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:00:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-12-13 15:00:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-12-13 15:00:29,450 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-12-13 15:00:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-12-13 15:00:29,451 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-12-13 15:00:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-12-13 15:00:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-12-13 15:00:29,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-12-13 15:00:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-12-13 15:00:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-12-13 15:00:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-12-13 15:00:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-12-13 15:00:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-12-13 15:00:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-12-13 15:00:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 15:00:29,453 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-12-13 15:00:29,767 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:00:29,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:00:32,355 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:00:32,364 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:00:32,364 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 15:00:32,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:00:32 BoogieIcfgContainer [2022-12-13 15:00:32,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:00:32,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:00:32,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:00:32,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:00:32,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:00:27" (1/3) ... [2022-12-13 15:00:32,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185545ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:00:32, skipping insertion in model container [2022-12-13 15:00:32,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:00:29" (2/3) ... [2022-12-13 15:00:32,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185545ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:00:32, skipping insertion in model container [2022-12-13 15:00:32,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:00:32" (3/3) ... [2022-12-13 15:00:32,374 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2022-12-13 15:00:32,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:00:32,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:00:32,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:00:32,448 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;@22ca2058, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:00:32,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:00:32,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 298 states have (on average 1.2516778523489933) internal successors, (373), 301 states have internal predecessors, (373), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2022-12-13 15:00:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 15:00:32,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:32,471 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:32,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:32,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:32,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1067452934, now seen corresponding path program 1 times [2022-12-13 15:00:32,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:32,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583799172] [2022-12-13 15:00:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:32,489 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 15:00:32,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:32,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:32,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:33,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:00:33,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 15:00:33,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:33,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:33,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583799172] [2022-12-13 15:00:33,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583799172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:33,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:33,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:00:33,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747287072] [2022-12-13 15:00:33,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:33,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:00:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:33,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:00:33,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:00:33,261 INFO L87 Difference]: Start difference. First operand has 526 states, 298 states have (on average 1.2516778523489933) internal successors, (373), 301 states have internal predecessors, (373), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 15:00:33,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:33,326 INFO L93 Difference]: Finished difference Result 1039 states and 1638 transitions. [2022-12-13 15:00:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:00:33,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-12-13 15:00:33,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:33,337 INFO L225 Difference]: With dead ends: 1039 [2022-12-13 15:00:33,337 INFO L226 Difference]: Without dead ends: 519 [2022-12-13 15:00:33,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 161 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 15:00:33,345 INFO L413 NwaCegarLoop]: 749 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, 749 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 15:00:33,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:00:33,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-12-13 15:00:33,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 519. [2022-12-13 15:00:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 292 states have (on average 1.2328767123287672) internal successors, (360), 294 states have internal predecessors, (360), 193 states have call successors, (193), 33 states have call predecessors, (193), 32 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2022-12-13 15:00:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 744 transitions. [2022-12-13 15:00:33,415 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 744 transitions. Word has length 162 [2022-12-13 15:00:33,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:33,417 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 744 transitions. [2022-12-13 15:00:33,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 15:00:33,417 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 744 transitions. [2022-12-13 15:00:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 15:00:33,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:33,423 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:33,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:33,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:33,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:33,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:33,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1305928380, now seen corresponding path program 1 times [2022-12-13 15:00:33,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19859160] [2022-12-13 15:00:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:33,633 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 15:00:33,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:33,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:33,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:34,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:00:34,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 15:00:34,430 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:34,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:34,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19859160] [2022-12-13 15:00:34,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19859160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:34,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:34,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:00:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062702159] [2022-12-13 15:00:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:00:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:34,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:00:34,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:00:34,434 INFO L87 Difference]: Start difference. First operand 519 states and 744 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 15:00:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:34,687 INFO L93 Difference]: Finished difference Result 1007 states and 1454 transitions. [2022-12-13 15:00:34,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:00:34,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 162 [2022-12-13 15:00:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:34,691 INFO L225 Difference]: With dead ends: 1007 [2022-12-13 15:00:34,692 INFO L226 Difference]: Without dead ends: 521 [2022-12-13 15:00:34,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 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 15:00:34,695 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 32 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:34,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2834 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:00:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-12-13 15:00:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 521. [2022-12-13 15:00:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 293 states have (on average 1.2320819112627985) internal successors, (361), 296 states have internal predecessors, (361), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2022-12-13 15:00:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 753 transitions. [2022-12-13 15:00:34,720 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 753 transitions. Word has length 162 [2022-12-13 15:00:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:34,720 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 753 transitions. [2022-12-13 15:00:34,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 15:00:34,720 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 753 transitions. [2022-12-13 15:00:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-13 15:00:34,722 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:34,722 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:34,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:34,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:34,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:34,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1387716181, now seen corresponding path program 1 times [2022-12-13 15:00:34,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:34,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087782336] [2022-12-13 15:00:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:34,926 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 15:00:34,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:34,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:34,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:35,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:00:35,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 15:00:35,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:35,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:35,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087782336] [2022-12-13 15:00:35,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087782336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:35,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:35,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:00:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466518938] [2022-12-13 15:00:35,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:35,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:00:35,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:35,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:00:35,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:00:35,797 INFO L87 Difference]: Start difference. First operand 521 states and 753 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 15:00:36,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:36,791 INFO L93 Difference]: Finished difference Result 1030 states and 1530 transitions. [2022-12-13 15:00:36,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:00:36,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 170 [2022-12-13 15:00:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:36,795 INFO L225 Difference]: With dead ends: 1030 [2022-12-13 15:00:36,795 INFO L226 Difference]: Without dead ends: 542 [2022-12-13 15:00:36,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 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 15:00:36,797 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 66 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:36,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 4070 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:00:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-12-13 15:00:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 540. [2022-12-13 15:00:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 309 states have (on average 1.2394822006472492) internal successors, (383), 312 states have internal predecessors, (383), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 15:00:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 811 transitions. [2022-12-13 15:00:36,821 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 811 transitions. Word has length 170 [2022-12-13 15:00:36,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:36,821 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 811 transitions. [2022-12-13 15:00:36,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 15:00:36,822 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 811 transitions. [2022-12-13 15:00:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-12-13 15:00:36,824 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:36,824 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:36,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:37,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:37,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 494493416, now seen corresponding path program 1 times [2022-12-13 15:00:37,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:37,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302748860] [2022-12-13 15:00:37,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:37,033 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 15:00:37,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:37,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:37,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:37,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:00:37,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-12-13 15:00:38,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:38,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:38,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302748860] [2022-12-13 15:00:38,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302748860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:38,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:38,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:00:38,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612505366] [2022-12-13 15:00:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:38,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:00:38,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:00:38,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:00:38,087 INFO L87 Difference]: Start difference. First operand 540 states and 811 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 15:00:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:38,529 INFO L93 Difference]: Finished difference Result 1055 states and 1608 transitions. [2022-12-13 15:00:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:00:38,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 185 [2022-12-13 15:00:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:38,533 INFO L225 Difference]: With dead ends: 1055 [2022-12-13 15:00:38,533 INFO L226 Difference]: Without dead ends: 548 [2022-12-13 15:00:38,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:00:38,536 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 55 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3499 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:38,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3499 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 15:00:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-12-13 15:00:38,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 540. [2022-12-13 15:00:38,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 309 states have (on average 1.2394822006472492) internal successors, (383), 312 states have internal predecessors, (383), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 15:00:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 811 transitions. [2022-12-13 15:00:38,556 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 811 transitions. Word has length 185 [2022-12-13 15:00:38,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:38,557 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 811 transitions. [2022-12-13 15:00:38,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-12-13 15:00:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 811 transitions. [2022-12-13 15:00:38,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-13 15:00:38,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:38,559 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:38,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:38,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:38,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash -863536896, now seen corresponding path program 1 times [2022-12-13 15:00:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:38,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361014162] [2022-12-13 15:00:38,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:38,762 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 15:00:38,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:38,763 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:38,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:39,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:00:39,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-12-13 15:00:39,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:39,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:39,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361014162] [2022-12-13 15:00:39,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361014162] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:39,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:39,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:00:39,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68193859] [2022-12-13 15:00:39,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:39,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:00:39,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:39,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:00:39,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:00:39,683 INFO L87 Difference]: Start difference. First operand 540 states and 811 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-12-13 15:00:40,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:40,762 INFO L93 Difference]: Finished difference Result 1081 states and 1646 transitions. [2022-12-13 15:00:40,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:00:40,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 201 [2022-12-13 15:00:40,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:40,766 INFO L225 Difference]: With dead ends: 1081 [2022-12-13 15:00:40,766 INFO L226 Difference]: Without dead ends: 574 [2022-12-13 15:00:40,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:00:40,769 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 104 mSDsluCounter, 3929 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:40,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 4616 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 15:00:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-12-13 15:00:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 540. [2022-12-13 15:00:40,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 309 states have (on average 1.2394822006472492) internal successors, (383), 312 states have internal predecessors, (383), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2022-12-13 15:00:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 811 transitions. [2022-12-13 15:00:40,789 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 811 transitions. Word has length 201 [2022-12-13 15:00:40,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:40,790 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 811 transitions. [2022-12-13 15:00:40,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2022-12-13 15:00:40,790 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 811 transitions. [2022-12-13 15:00:40,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-12-13 15:00:40,792 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:40,792 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 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] [2022-12-13 15:00:40,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:40,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:40,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash -206220561, now seen corresponding path program 2 times [2022-12-13 15:00:40,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:40,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125148266] [2022-12-13 15:00:40,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:00:40,997 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 15:00:40,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:40,999 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:41,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:41,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:00:41,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:41,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:00:41,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-12-13 15:00:41,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:41,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:41,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125148266] [2022-12-13 15:00:41,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [125148266] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:41,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:41,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:00:41,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701752871] [2022-12-13 15:00:41,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:00:41,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:41,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:00:41,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:00:41,524 INFO L87 Difference]: Start difference. First operand 540 states and 811 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 15:00:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:41,710 INFO L93 Difference]: Finished difference Result 548 states and 819 transitions. [2022-12-13 15:00:41,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:00:41,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 216 [2022-12-13 15:00:41,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:41,713 INFO L225 Difference]: With dead ends: 548 [2022-12-13 15:00:41,713 INFO L226 Difference]: Without dead ends: 546 [2022-12-13 15:00:41,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 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 15:00:41,714 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 5 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:41,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3638 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:00:41,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-12-13 15:00:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2022-12-13 15:00:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 312 states have (on average 1.2371794871794872) internal successors, (386), 315 states have internal predecessors, (386), 196 states have call successors, (196), 34 states have call predecessors, (196), 35 states have return successors, (234), 195 states have call predecessors, (234), 194 states have call successors, (234) [2022-12-13 15:00:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 816 transitions. [2022-12-13 15:00:41,735 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 816 transitions. Word has length 216 [2022-12-13 15:00:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:41,736 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 816 transitions. [2022-12-13 15:00:41,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 15:00:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 816 transitions. [2022-12-13 15:00:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-12-13 15:00:41,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:41,739 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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] [2022-12-13 15:00:41,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:41,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:41,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash -22865134, now seen corresponding path program 3 times [2022-12-13 15:00:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:41,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949213853] [2022-12-13 15:00:41,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:00:41,942 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 15:00:41,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:41,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:41,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:46,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 15:00:46,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:46,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 15:00:46,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-12-13 15:00:46,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:00:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 15:00:46,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:46,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949213853] [2022-12-13 15:00:46,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949213853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:00:46,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:00:46,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-12-13 15:00:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619210355] [2022-12-13 15:00:46,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:00:46,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:00:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:00:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:00:46,697 INFO L87 Difference]: Start difference. First operand 545 states and 816 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 15:00:47,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:47,608 INFO L93 Difference]: Finished difference Result 1041 states and 1581 transitions. [2022-12-13 15:00:47,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:00:47,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2022-12-13 15:00:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:47,612 INFO L225 Difference]: With dead ends: 1041 [2022-12-13 15:00:47,612 INFO L226 Difference]: Without dead ends: 553 [2022-12-13 15:00:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:00:47,614 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 34 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:47,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3426 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 15:00:47,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-12-13 15:00:47,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 550. [2022-12-13 15:00:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 315 states have (on average 1.234920634920635) internal successors, (389), 317 states have internal predecessors, (389), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2022-12-13 15:00:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 823 transitions. [2022-12-13 15:00:47,642 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 823 transitions. Word has length 231 [2022-12-13 15:00:47,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:47,643 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 823 transitions. [2022-12-13 15:00:47,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2022-12-13 15:00:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 823 transitions. [2022-12-13 15:00:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 15:00:47,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:47,645 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:47,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 15:00:47,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:47,845 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1100832071, now seen corresponding path program 4 times [2022-12-13 15:00:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:47,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363768647] [2022-12-13 15:00:47,848 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 15:00:47,848 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 15:00:47,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:47,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:47,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:49,049 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 15:00:49,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:00:49,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1983 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:00:49,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 15:00:49,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:49,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:49,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363768647] [2022-12-13 15:00:49,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363768647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:49,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:49,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:00:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183608834] [2022-12-13 15:00:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:49,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:00:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:00:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:00:49,552 INFO L87 Difference]: Start difference. First operand 550 states and 823 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:00:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:00:54,255 INFO L93 Difference]: Finished difference Result 1103 states and 1686 transitions. [2022-12-13 15:00:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:00:54,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 246 [2022-12-13 15:00:54,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:00:54,261 INFO L225 Difference]: With dead ends: 1103 [2022-12-13 15:00:54,261 INFO L226 Difference]: Without dead ends: 586 [2022-12-13 15:00:54,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 241 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 15:00:54,263 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 23 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:00:54,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3516 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-13 15:00:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-12-13 15:00:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 558. [2022-12-13 15:00:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 323 states have (on average 1.2352941176470589) internal successors, (399), 325 states have internal predecessors, (399), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2022-12-13 15:00:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 833 transitions. [2022-12-13 15:00:54,284 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 833 transitions. Word has length 246 [2022-12-13 15:00:54,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:00:54,284 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 833 transitions. [2022-12-13 15:00:54,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:00:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 833 transitions. [2022-12-13 15:00:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 15:00:54,285 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:00:54,285 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:54,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Forceful destruction successful, exit code 0 [2022-12-13 15:00:54,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:54,487 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:00:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:00:54,489 INFO L85 PathProgramCache]: Analyzing trace with hash 944851529, now seen corresponding path program 1 times [2022-12-13 15:00:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:00:54,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938888245] [2022-12-13 15:00:54,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:00:54,495 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 15:00:54,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:00:54,498 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:54,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:00:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:00:55,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:00:55,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:00:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-12-13 15:00:56,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:00:56,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:00:56,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938888245] [2022-12-13 15:00:56,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938888245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:00:56,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:00:56,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:00:56,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947430932] [2022-12-13 15:00:56,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:00:56,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:00:56,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:00:56,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:00:56,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:00:56,453 INFO L87 Difference]: Start difference. First operand 558 states and 833 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:01:01,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:01,097 INFO L93 Difference]: Finished difference Result 1113 states and 1696 transitions. [2022-12-13 15:01:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:01:01,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 246 [2022-12-13 15:01:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:01,104 INFO L225 Difference]: With dead ends: 1113 [2022-12-13 15:01:01,104 INFO L226 Difference]: Without dead ends: 588 [2022-12-13 15:01:01,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:01:01,106 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 20 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:01,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4253 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-12-13 15:01:01,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-12-13 15:01:01,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 562. [2022-12-13 15:01:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 327 states have (on average 1.2324159021406729) internal successors, (403), 329 states have internal predecessors, (403), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2022-12-13 15:01:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 837 transitions. [2022-12-13 15:01:01,125 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 837 transitions. Word has length 246 [2022-12-13 15:01:01,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:01,125 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 837 transitions. [2022-12-13 15:01:01,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-13 15:01:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 837 transitions. [2022-12-13 15:01:01,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 15:01:01,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:01,126 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:01,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:01,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:01,328 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash -843018293, now seen corresponding path program 1 times [2022-12-13 15:01:01,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:01,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622614113] [2022-12-13 15:01:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:01,336 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 15:01:01,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:01,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:01,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:02,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 1978 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:01:02,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 200 proven. 3 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-12-13 15:01:02,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-12-13 15:01:02,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:02,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622614113] [2022-12-13 15:01:02,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622614113] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:02,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:01:02,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2022-12-13 15:01:02,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047073820] [2022-12-13 15:01:02,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:02,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:01:02,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:02,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:01:02,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:01:02,961 INFO L87 Difference]: Start difference. First operand 562 states and 837 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-13 15:01:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:03,085 INFO L93 Difference]: Finished difference Result 1099 states and 1642 transitions. [2022-12-13 15:01:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:01:03,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 246 [2022-12-13 15:01:03,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:03,088 INFO L225 Difference]: With dead ends: 1099 [2022-12-13 15:01:03,088 INFO L226 Difference]: Without dead ends: 577 [2022-12-13 15:01:03,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:01:03,090 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 5 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4455 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:03,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4455 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:01:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-12-13 15:01:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 569. [2022-12-13 15:01:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 332 states have (on average 1.2289156626506024) internal successors, (408), 334 states have internal predecessors, (408), 199 states have call successors, (199), 35 states have call predecessors, (199), 36 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2022-12-13 15:01:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 848 transitions. [2022-12-13 15:01:03,111 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 848 transitions. Word has length 246 [2022-12-13 15:01:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:03,112 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 848 transitions. [2022-12-13 15:01:03,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-13 15:01:03,112 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 848 transitions. [2022-12-13 15:01:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-12-13 15:01:03,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:03,113 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:03,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:03,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:03,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:03,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:03,315 INFO L85 PathProgramCache]: Analyzing trace with hash 546275721, now seen corresponding path program 1 times [2022-12-13 15:01:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:03,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341194924] [2022-12-13 15:01:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:03,317 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 15:01:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:03,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:03,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:04,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 15:01:04,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 220 proven. 3 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-13 15:01:04,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-12-13 15:01:05,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:05,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341194924] [2022-12-13 15:01:05,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341194924] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:05,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:01:05,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2022-12-13 15:01:05,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843949147] [2022-12-13 15:01:05,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:05,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:01:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:05,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:01:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:01:05,044 INFO L87 Difference]: Start difference. First operand 569 states and 848 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 15:01:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:05,721 INFO L93 Difference]: Finished difference Result 1095 states and 1634 transitions. [2022-12-13 15:01:05,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:01:05,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 246 [2022-12-13 15:01:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:05,724 INFO L225 Difference]: With dead ends: 1095 [2022-12-13 15:01:05,724 INFO L226 Difference]: Without dead ends: 565 [2022-12-13 15:01:05,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:01:05,726 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 4 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5485 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:05,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5485 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 15:01:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-12-13 15:01:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 565. [2022-12-13 15:01:05,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 329 states have (on average 1.2279635258358663) internal successors, (404), 332 states have internal predecessors, (404), 198 states have call successors, (198), 35 states have call predecessors, (198), 36 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-12-13 15:01:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 840 transitions. [2022-12-13 15:01:05,744 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 840 transitions. Word has length 246 [2022-12-13 15:01:05,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:05,744 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 840 transitions. [2022-12-13 15:01:05,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 15:01:05,745 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 840 transitions. [2022-12-13 15:01:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-12-13 15:01:05,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:05,746 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:05,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:05,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:05,947 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:05,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 91559537, now seen corresponding path program 1 times [2022-12-13 15:01:05,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:05,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297592917] [2022-12-13 15:01:05,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:05,949 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 15:01:05,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:05,950 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:05,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:07,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:01:07,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-12-13 15:01:07,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:01:07,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:07,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297592917] [2022-12-13 15:01:07,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297592917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:01:07,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:01:07,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:01:07,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822254794] [2022-12-13 15:01:07,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:01:07,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:01:07,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:07,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:01:07,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:01:07,406 INFO L87 Difference]: Start difference. First operand 565 states and 840 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 15:01:07,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:07,986 INFO L93 Difference]: Finished difference Result 1087 states and 1625 transitions. [2022-12-13 15:01:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:01:07,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 257 [2022-12-13 15:01:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:07,991 INFO L225 Difference]: With dead ends: 1087 [2022-12-13 15:01:07,991 INFO L226 Difference]: Without dead ends: 567 [2022-12-13 15:01:07,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 252 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 15:01:07,993 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 121 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 4053 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:07,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 4053 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 15:01:07,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-12-13 15:01:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-12-13 15:01:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 330 states have (on average 1.2272727272727273) internal successors, (405), 334 states have internal predecessors, (405), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (242), 197 states have call predecessors, (242), 196 states have call successors, (242) [2022-12-13 15:01:08,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 845 transitions. [2022-12-13 15:01:08,012 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 845 transitions. Word has length 257 [2022-12-13 15:01:08,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:08,013 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 845 transitions. [2022-12-13 15:01:08,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-12-13 15:01:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 845 transitions. [2022-12-13 15:01:08,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-12-13 15:01:08,014 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:08,014 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:08,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Ended with exit code 0 [2022-12-13 15:01:08,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:08,215 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:08,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:08,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1643663113, now seen corresponding path program 1 times [2022-12-13 15:01:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:08,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083521903] [2022-12-13 15:01:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:08,217 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 15:01:08,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:08,218 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:08,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:09,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 2144 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:01:09,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-12-13 15:01:10,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:01:10,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:10,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083521903] [2022-12-13 15:01:10,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083521903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:01:10,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:01:10,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:01:10,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043680769] [2022-12-13 15:01:10,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:01:10,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:01:10,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:01:10,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:01:10,003 INFO L87 Difference]: Start difference. First operand 567 states and 845 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-12-13 15:01:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:10,740 INFO L93 Difference]: Finished difference Result 1092 states and 1636 transitions. [2022-12-13 15:01:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:01:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 280 [2022-12-13 15:01:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:10,743 INFO L225 Difference]: With dead ends: 1092 [2022-12-13 15:01:10,743 INFO L226 Difference]: Without dead ends: 570 [2022-12-13 15:01:10,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 276 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 15:01:10,746 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 144 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:10,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 4686 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 15:01:10,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-12-13 15:01:10,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2022-12-13 15:01:10,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 331 states have (on average 1.2265861027190332) internal successors, (406), 335 states have internal predecessors, (406), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (242), 197 states have call predecessors, (242), 196 states have call successors, (242) [2022-12-13 15:01:10,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 846 transitions. [2022-12-13 15:01:10,779 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 846 transitions. Word has length 280 [2022-12-13 15:01:10,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:10,780 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 846 transitions. [2022-12-13 15:01:10,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-12-13 15:01:10,780 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 846 transitions. [2022-12-13 15:01:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-12-13 15:01:10,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:10,782 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2022-12-13 15:01:10,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Ended with exit code 0 [2022-12-13 15:01:10,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:10,983 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:10,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 842224166, now seen corresponding path program 1 times [2022-12-13 15:01:10,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:10,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738655853] [2022-12-13 15:01:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:10,986 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 15:01:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:10,987 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:10,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:12,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 2075 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:01:12,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:12,586 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 277 proven. 3 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-12-13 15:01:12,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2022-12-13 15:01:13,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:13,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738655853] [2022-12-13 15:01:13,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738655853] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:13,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:01:13,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-12-13 15:01:13,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346048953] [2022-12-13 15:01:13,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:13,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 15:01:13,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:13,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 15:01:13,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:01:13,022 INFO L87 Difference]: Start difference. First operand 568 states and 846 transitions. Second operand has 14 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 9 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (54), 5 states have call predecessors, (54), 9 states have call successors, (54) [2022-12-13 15:01:14,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:14,266 INFO L93 Difference]: Finished difference Result 1116 states and 1670 transitions. [2022-12-13 15:01:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:01:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 9 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (54), 5 states have call predecessors, (54), 9 states have call successors, (54) Word has length 281 [2022-12-13 15:01:14,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:14,270 INFO L225 Difference]: With dead ends: 1116 [2022-12-13 15:01:14,270 INFO L226 Difference]: Without dead ends: 593 [2022-12-13 15:01:14,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:01:14,272 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 251 mSDsluCounter, 5177 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 5878 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:14,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 5878 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:01:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-12-13 15:01:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 587. [2022-12-13 15:01:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 349 states have (on average 1.2320916905444126) internal successors, (430), 352 states have internal predecessors, (430), 199 states have call successors, (199), 35 states have call predecessors, (199), 37 states have return successors, (243), 199 states have call predecessors, (243), 197 states have call successors, (243) [2022-12-13 15:01:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 872 transitions. [2022-12-13 15:01:14,293 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 872 transitions. Word has length 281 [2022-12-13 15:01:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 872 transitions. [2022-12-13 15:01:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 9 states have call successors, (58), 4 states have call predecessors, (58), 4 states have return successors, (54), 5 states have call predecessors, (54), 9 states have call successors, (54) [2022-12-13 15:01:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 872 transitions. [2022-12-13 15:01:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-12-13 15:01:14,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:14,295 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 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, 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] [2022-12-13 15:01:14,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Ended with exit code 0 [2022-12-13 15:01:14,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:14,496 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:14,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:14,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1646947475, now seen corresponding path program 2 times [2022-12-13 15:01:14,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119934357] [2022-12-13 15:01:14,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:01:14,504 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 15:01:14,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:14,507 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:14,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:17,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 15:01:17,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:17,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:01:17,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-12-13 15:01:17,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:01:17,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:17,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119934357] [2022-12-13 15:01:17,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119934357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:01:17,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:01:17,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:01:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057477907] [2022-12-13 15:01:17,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:01:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:01:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:01:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:01:17,890 INFO L87 Difference]: Start difference. First operand 587 states and 872 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2022-12-13 15:01:19,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:19,750 INFO L93 Difference]: Finished difference Result 1153 states and 1717 transitions. [2022-12-13 15:01:19,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:01:19,751 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 296 [2022-12-13 15:01:19,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:19,756 INFO L225 Difference]: With dead ends: 1153 [2022-12-13 15:01:19,756 INFO L226 Difference]: Without dead ends: 611 [2022-12-13 15:01:19,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:01:19,760 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 193 mSDsluCounter, 5021 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 5699 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:19,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 5699 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 15:01:19,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-13 15:01:19,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 565. [2022-12-13 15:01:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 329 states have (on average 1.2279635258358663) internal successors, (404), 332 states have internal predecessors, (404), 198 states have call successors, (198), 35 states have call predecessors, (198), 36 states have return successors, (234), 197 states have call predecessors, (234), 196 states have call successors, (234) [2022-12-13 15:01:19,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 836 transitions. [2022-12-13 15:01:19,779 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 836 transitions. Word has length 296 [2022-12-13 15:01:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:19,779 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 836 transitions. [2022-12-13 15:01:19,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2022-12-13 15:01:19,779 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 836 transitions. [2022-12-13 15:01:19,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-12-13 15:01:19,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:19,781 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 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, 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] [2022-12-13 15:01:19,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:19,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:19,983 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:19,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -49939864, now seen corresponding path program 3 times [2022-12-13 15:01:19,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:19,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032723416] [2022-12-13 15:01:19,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:01:19,991 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 15:01:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:19,994 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:19,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:39,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-12-13 15:01:39,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:01:40,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1490 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 15:01:40,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-12-13 15:01:40,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 48 proven. 15 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-12-13 15:01:40,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:40,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032723416] [2022-12-13 15:01:40,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032723416] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:40,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:01:40,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 10 [2022-12-13 15:01:40,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435766343] [2022-12-13 15:01:40,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:40,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:01:40,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:40,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:01:40,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:01:40,901 INFO L87 Difference]: Start difference. First operand 565 states and 836 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2022-12-13 15:01:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:42,312 INFO L93 Difference]: Finished difference Result 1146 states and 1715 transitions. [2022-12-13 15:01:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 15:01:42,313 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) Word has length 311 [2022-12-13 15:01:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:42,316 INFO L225 Difference]: With dead ends: 1146 [2022-12-13 15:01:42,316 INFO L226 Difference]: Without dead ends: 638 [2022-12-13 15:01:42,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:01:42,318 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 93 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:42,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 4286 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 15:01:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-12-13 15:01:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 592. [2022-12-13 15:01:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 344 states have (on average 1.2325581395348837) internal successors, (424), 348 states have internal predecessors, (424), 209 states have call successors, (209), 36 states have call predecessors, (209), 37 states have return successors, (245), 207 states have call predecessors, (245), 207 states have call successors, (245) [2022-12-13 15:01:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 878 transitions. [2022-12-13 15:01:42,341 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 878 transitions. Word has length 311 [2022-12-13 15:01:42,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:42,341 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 878 transitions. [2022-12-13 15:01:42,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 9 states have internal predecessors, (113), 5 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (34), 5 states have call predecessors, (34), 5 states have call successors, (34) [2022-12-13 15:01:42,341 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 878 transitions. [2022-12-13 15:01:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-12-13 15:01:42,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:42,343 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1] [2022-12-13 15:01:42,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:42,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:42,544 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:42,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:42,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1125647623, now seen corresponding path program 1 times [2022-12-13 15:01:42,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:42,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147855559] [2022-12-13 15:01:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:42,546 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 15:01:42,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:42,547 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:42,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:44,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 2411 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:01:44,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 368 proven. 3 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-12-13 15:01:44,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:01:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2022-12-13 15:01:44,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:44,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147855559] [2022-12-13 15:01:44,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147855559] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:01:44,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 15:01:44,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2022-12-13 15:01:44,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478519596] [2022-12-13 15:01:44,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 15:01:44,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 15:01:44,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 15:01:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-12-13 15:01:44,940 INFO L87 Difference]: Start difference. First operand 592 states and 878 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 15:01:45,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:01:45,315 INFO L93 Difference]: Finished difference Result 1136 states and 1688 transitions. [2022-12-13 15:01:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:01:45,316 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) Word has length 326 [2022-12-13 15:01:45,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:01:45,318 INFO L225 Difference]: With dead ends: 1136 [2022-12-13 15:01:45,318 INFO L226 Difference]: Without dead ends: 592 [2022-12-13 15:01:45,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:01:45,320 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 95 mSDsluCounter, 6441 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 7177 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:01:45,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 7177 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 15:01:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-12-13 15:01:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2022-12-13 15:01:45,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 344 states have (on average 1.2296511627906976) internal successors, (423), 348 states have internal predecessors, (423), 209 states have call successors, (209), 36 states have call predecessors, (209), 37 states have return successors, (245), 207 states have call predecessors, (245), 207 states have call successors, (245) [2022-12-13 15:01:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 877 transitions. [2022-12-13 15:01:45,342 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 877 transitions. Word has length 326 [2022-12-13 15:01:45,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:01:45,343 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 877 transitions. [2022-12-13 15:01:45,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2022-12-13 15:01:45,343 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 877 transitions. [2022-12-13 15:01:45,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-12-13 15:01:45,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:01:45,344 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1] [2022-12-13 15:01:45,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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)] Forceful destruction successful, exit code 0 [2022-12-13 15:01:45,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:45,545 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:01:45,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:01:45,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2138278775, now seen corresponding path program 1 times [2022-12-13 15:01:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:01:45,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514580150] [2022-12-13 15:01:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:01:45,547 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 15:01:45,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:01:45,548 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:45,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:01:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:01:50,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 15:01:50,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:01:51,365 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 9 treesize of output 3 [2022-12-13 15:01:51,369 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 9 treesize of output 3 [2022-12-13 15:01:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-12-13 15:01:51,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:01:51,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:01:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514580150] [2022-12-13 15:01:51,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514580150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:01:51,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:01:51,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 15:01:51,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168319654] [2022-12-13 15:01:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:01:51,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 15:01:51,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:01:51,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 15:01:51,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-13 15:01:51,478 INFO L87 Difference]: Start difference. First operand 592 states and 877 transitions. Second operand has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2022-12-13 15:01:57,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 15:02:00,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:02:00,019 INFO L93 Difference]: Finished difference Result 1233 states and 1890 transitions. [2022-12-13 15:02:00,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 15:02:00,020 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 326 [2022-12-13 15:02:00,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:02:00,024 INFO L225 Difference]: With dead ends: 1233 [2022-12-13 15:02:00,024 INFO L226 Difference]: Without dead ends: 674 [2022-12-13 15:02:00,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:02:00,026 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 112 mSDsluCounter, 6541 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 7243 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:02:00,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 7243 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-12-13 15:02:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-12-13 15:02:00,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 629. [2022-12-13 15:02:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 380 states have (on average 1.236842105263158) internal successors, (470), 383 states have internal predecessors, (470), 209 states have call successors, (209), 36 states have call predecessors, (209), 38 states have return successors, (277), 209 states have call predecessors, (277), 207 states have call successors, (277) [2022-12-13 15:02:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 956 transitions. [2022-12-13 15:02:00,051 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 956 transitions. Word has length 326 [2022-12-13 15:02:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:02:00,052 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 956 transitions. [2022-12-13 15:02:00,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2022-12-13 15:02:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 956 transitions. [2022-12-13 15:02:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-12-13 15:02:00,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:02:00,053 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2022-12-13 15:02:00,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:00,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:00,254 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:02:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1882534345, now seen corresponding path program 1 times [2022-12-13 15:02:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:02:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576840334] [2022-12-13 15:02:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:00,256 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 15:02:00,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:02:00,257 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:00,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:01,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 2407 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:02:01,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-12-13 15:02:01,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:02:01,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:02:01,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576840334] [2022-12-13 15:02:01,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576840334] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:01,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:02:01,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:02:01,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501242241] [2022-12-13 15:02:01,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:01,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:02:01,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:02:01,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:02:01,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:02:01,965 INFO L87 Difference]: Start difference. First operand 629 states and 956 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 15:02:02,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:02:02,053 INFO L93 Difference]: Finished difference Result 1228 states and 1936 transitions. [2022-12-13 15:02:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:02:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 326 [2022-12-13 15:02:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:02:02,058 INFO L225 Difference]: With dead ends: 1228 [2022-12-13 15:02:02,058 INFO L226 Difference]: Without dead ends: 632 [2022-12-13 15:02:02,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 324 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 15:02:02,061 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 7 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2218 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 15:02:02,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2218 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:02:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2022-12-13 15:02:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 629. [2022-12-13 15:02:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 380 states have (on average 1.2342105263157894) internal successors, (469), 383 states have internal predecessors, (469), 209 states have call successors, (209), 36 states have call predecessors, (209), 38 states have return successors, (277), 209 states have call predecessors, (277), 207 states have call successors, (277) [2022-12-13 15:02:02,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 955 transitions. [2022-12-13 15:02:02,086 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 955 transitions. Word has length 326 [2022-12-13 15:02:02,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:02:02,086 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 955 transitions. [2022-12-13 15:02:02,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 15:02:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 955 transitions. [2022-12-13 15:02:02,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-12-13 15:02:02,088 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:02:02,088 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2022-12-13 15:02:02,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:02,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:02,289 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:02:02,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1555850761, now seen corresponding path program 1 times [2022-12-13 15:02:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:02:02,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660486553] [2022-12-13 15:02:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:02,292 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 15:02:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:02:02,293 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:02,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:08,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 15:02:08,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:09,026 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 15:02:09,026 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 15:02:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-12-13 15:02:09,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:02:09,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:02:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660486553] [2022-12-13 15:02:09,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660486553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:09,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:02:09,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:02:09,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188097102] [2022-12-13 15:02:09,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:09,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:02:09,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:02:09,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:02:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:02:09,132 INFO L87 Difference]: Start difference. First operand 629 states and 955 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, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2022-12-13 15:02:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:02:18,654 INFO L93 Difference]: Finished difference Result 1262 states and 1974 transitions. [2022-12-13 15:02:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 15:02:18,656 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, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 330 [2022-12-13 15:02:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:02:18,658 INFO L225 Difference]: With dead ends: 1262 [2022-12-13 15:02:18,659 INFO L226 Difference]: Without dead ends: 666 [2022-12-13 15:02:18,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-12-13 15:02:18,661 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 101 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:02:18,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 6503 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-12-13 15:02:18,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-12-13 15:02:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 611. [2022-12-13 15:02:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 362 states have (on average 1.2209944751381216) internal successors, (442), 365 states have internal predecessors, (442), 209 states have call successors, (209), 36 states have call predecessors, (209), 38 states have return successors, (277), 209 states have call predecessors, (277), 207 states have call successors, (277) [2022-12-13 15:02:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 928 transitions. [2022-12-13 15:02:18,687 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 928 transitions. Word has length 330 [2022-12-13 15:02:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:02:18,687 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 928 transitions. [2022-12-13 15:02:18,687 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, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2022-12-13 15:02:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 928 transitions. [2022-12-13 15:02:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-12-13 15:02:18,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:02:18,689 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2022-12-13 15:02:18,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:18,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:18,891 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:02:18,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2069337399, now seen corresponding path program 1 times [2022-12-13 15:02:18,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:02:18,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837508806] [2022-12-13 15:02:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:18,900 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 15:02:18,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:02:18,903 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:18,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:02:20,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:02:20,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:02:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-12-13 15:02:20,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:02:20,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:02:20,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837508806] [2022-12-13 15:02:20,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837508806] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:02:20,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:02:20,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:02:20,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117201530] [2022-12-13 15:02:20,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:02:20,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:02:20,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:02:20,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:02:20,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:02:20,843 INFO L87 Difference]: Start difference. First operand 611 states and 928 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 15:02:25,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:02:25,168 INFO L93 Difference]: Finished difference Result 1189 states and 1876 transitions. [2022-12-13 15:02:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:02:25,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 330 [2022-12-13 15:02:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:02:25,173 INFO L225 Difference]: With dead ends: 1189 [2022-12-13 15:02:25,173 INFO L226 Difference]: Without dead ends: 611 [2022-12-13 15:02:25,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:02:25,176 INFO L413 NwaCegarLoop]: 773 mSDtfsCounter, 10 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:02:25,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2896 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-13 15:02:25,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-12-13 15:02:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2022-12-13 15:02:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 362 states have (on average 1.218232044198895) internal successors, (441), 365 states have internal predecessors, (441), 209 states have call successors, (209), 36 states have call predecessors, (209), 38 states have return successors, (277), 209 states have call predecessors, (277), 207 states have call successors, (277) [2022-12-13 15:02:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 927 transitions. [2022-12-13 15:02:25,200 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 927 transitions. Word has length 330 [2022-12-13 15:02:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:02:25,200 INFO L495 AbstractCegarLoop]: Abstraction has 611 states and 927 transitions. [2022-12-13 15:02:25,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 15:02:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 927 transitions. [2022-12-13 15:02:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-12-13 15:02:25,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:02:25,202 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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] [2022-12-13 15:02:25,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:25,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:25,404 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:02:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:02:25,405 INFO L85 PathProgramCache]: Analyzing trace with hash -940088841, now seen corresponding path program 1 times [2022-12-13 15:02:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:02:25,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299892031] [2022-12-13 15:02:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:02:25,414 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 15:02:25,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:02:25,417 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:02:25,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/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 15:04:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:04:25,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 108 conjunts are in the unsatisfiable core [2022-12-13 15:04:25,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:04:25,354 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 15:04:25,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 15:04:25,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 15:04:28,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 15:04:28,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-13 15:04:28,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:04:28,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 15:04:28,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 15:04:28,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 15:04:29,459 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_393| (_ BitVec 64)) (v_ArrVal_3499 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_393| v_ArrVal_3499)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_393|)))) is different from true [2022-12-13 15:04:29,669 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3501 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3501) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3500 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3500) |c_#memory_$Pointer$.base|)) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_393| (_ BitVec 64)) (v_ArrVal_3499 (_ BitVec 1))) (and (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_393| v_ArrVal_3499)) (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_393|))))) is different from true [2022-12-13 15:04:30,021 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_393| (_ BitVec 64)) (v_ArrVal_3502 (_ BitVec 1)) (v_ArrVal_3498 (_ BitVec 1)) (v_ArrVal_3500 (Array (_ BitVec 64) (_ BitVec 64))) (|v_aws_array_list_is_valid_~#required_size~0.base_141| (_ BitVec 64)) (v_ArrVal_3499 (_ BitVec 1)) (v_ArrVal_3501 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_141| v_ArrVal_3498))) (and (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_141|) (_ bv0 1)) (= (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_141| v_ArrVal_3500) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_141| v_ArrVal_3501) |c_#memory_$Pointer$.offset|) (= (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_393| v_ArrVal_3499) |v_aws_array_list_is_valid_~#required_size~0.base_141| v_ArrVal_3502) |c_#valid|) (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_393|))))) is different from true [2022-12-13 15:04:31,116 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3503 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3503) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_3504 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_3504) |c_#memory_$Pointer$.base|))) is different from true [2022-12-13 15:04:35,388 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 336 proven. 16 refuted. 4 times theorem prover too weak. 348 trivial. 5 not checked. [2022-12-13 15:04:35,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:04:51,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:04:51,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299892031] [2022-12-13 15:04:51,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [299892031] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:04:51,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1630275612] [2022-12-13 15:04:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:04:51,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-13 15:04:51,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/cvc4 [2022-12-13 15:04:51,498 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-13 15:04:51,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a27066c-b7ee-41b3-9f78-8f6f1b5cc9c1/bin/uautomizer-uyxdKDjOR8/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process