./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R --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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- 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-38b53e6 [2022-11-25 15:42:32,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:42:32,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:42:32,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:42:32,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:42:32,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:42:32,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:42:32,382 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:42:32,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:42:32,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:42:32,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:42:32,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:42:32,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:42:32,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:42:32,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:42:32,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:42:32,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:42:32,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:42:32,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:42:32,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:42:32,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:42:32,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:42:32,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:42:32,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:42:32,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:42:32,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:42:32,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:42:32,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:42:32,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:42:32,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:42:32,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:42:32,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:42:32,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:42:32,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:42:32,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:42:32,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:42:32,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:42:32,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:42:32,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:42:32,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:42:32,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:42:32,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 15:42:32,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:42:32,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:42:32,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:42:32,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:42:32,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:42:32,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:42:32,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:42:32,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:42:32,477 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:42:32,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:42:32,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:42:32,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:42:32,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:42:32,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:42:32,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:42:32,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:42:32,479 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:42:32,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:42:32,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:42:32,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:42:32,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:42:32,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:42:32,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:42:32,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:42:32,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:42:32,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:42:32,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:42:32,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:42:32,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:42:32,483 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:42:32,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:42:32,483 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_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-25 15:42:32,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:42:32,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:42:32,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:42:32,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:42:32,790 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:42:32,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:42:35,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:42:36,362 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:42:36,362 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:42:36,396 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/d424127d2/fb083f82a0184344bd8fff6220003229/FLAGb9cc84c33 [2022-11-25 15:42:36,415 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/d424127d2/fb083f82a0184344bd8fff6220003229 [2022-11-25 15:42:36,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:42:36,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:42:36,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:42:36,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:42:36,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:42:36,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:42:36" (1/1) ... [2022-11-25 15:42:36,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5266d700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:36, skipping insertion in model container [2022-11-25 15:42:36,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:42:36" (1/1) ... [2022-11-25 15:42:36,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:42:36,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:42:36,873 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-25 15:42:36,882 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-25 15:42:37,961 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:37,974 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,976 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,977 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,979 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,983 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:37,997 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:37,998 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:37,999 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,002 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,003 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,010 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,013 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:38,014 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,016 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,146 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:38,146 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:38,148 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:38,156 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 15:42:38,159 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 15:42:38,164 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 15:42:38,610 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:42:38,612 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 15:42:38,614 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 15:42:38,615 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 15:42:38,617 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 15:42:38,619 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 15:42:38,620 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 15:42:38,621 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 15:42:38,622 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 15:42:38,623 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 15:42:38,624 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 15:42:38,895 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 15:42:38,954 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,959 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,966 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,970 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:38,973 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:38,975 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:38,978 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:38,985 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,000 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,004 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,005 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,006 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,006 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,007 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,079 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:42:39,099 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,100 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,101 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,102 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,103 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,103 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,104 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:42:39,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,106 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,106 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,107 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,111 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,112 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,112 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,112 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,116 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,117 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,125 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,126 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,127 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:42:39,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:42:39,251 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-25 15:42:39,252 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-25 15:42:39,317 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,322 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,323 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,323 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,324 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,325 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,327 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,340 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,340 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,341 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,342 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,342 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,345 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,346 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,347 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,348 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,348 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,363 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:39,363 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:39,365 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:42:39,370 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 15:42:39,372 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 15:42:39,372 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 15:42:39,414 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:42:39,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 15:42:39,416 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 15:42:39,417 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 15:42:39,418 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 15:42:39,419 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 15:42:39,419 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 15:42:39,420 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 15:42:39,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 15:42:39,421 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 15:42:39,422 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 15:42:39,455 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 15:42:39,478 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,486 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,488 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,491 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,493 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,498 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,499 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,500 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,501 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,501 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,502 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,502 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,502 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:42:39,531 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:42:39,538 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,539 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,540 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,541 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,541 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:42:39,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,542 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,543 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,543 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,543 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,544 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,544 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,545 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,545 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,548 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,548 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,557 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,558 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,559 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:42:39,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:42:39,843 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:42:39,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39 WrapperNode [2022-11-25 15:42:39,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:42:39,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:42:39,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:42:39,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:42:39,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:39,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,071 INFO L138 Inliner]: procedures = 697, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 918 [2022-11-25 15:42:40,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:42:40,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:42:40,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:42:40,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:42:40,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,184 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:42:40,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:42:40,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:42:40,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:42:40,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (1/1) ... [2022-11-25 15:42:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:42:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:40,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:42:40,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:42:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-25 15:42:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-25 15:42:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-25 15:42:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-25 15:42:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 15:42:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 15:42:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:42:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 15:42:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 15:42:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 15:42:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 15:42:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 15:42:40,299 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 15:42:40,299 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-25 15:42:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-25 15:42:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:42:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 15:42:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 15:42:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 15:42:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 15:42:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:42:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:42:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:42:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-25 15:42:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-25 15:42:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 15:42:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 15:42:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:42:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:42:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 15:42:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 15:42:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 15:42:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 15:42:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 15:42:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 15:42:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 15:42:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 15:42:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 15:42:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 15:42:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:42:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:42:40,305 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 15:42:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 15:42:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:42:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:42:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-25 15:42:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 15:42:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 15:42:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 15:42:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 15:42:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 15:42:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 15:42:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 15:42:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 15:42:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:42:40,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:42:40,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:42:42,154 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:42:42,171 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:42:42,171 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 15:42:42,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:42:42 BoogieIcfgContainer [2022-11-25 15:42:42,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:42:42,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:42:42,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:42:42,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:42:42,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:42:36" (1/3) ... [2022-11-25 15:42:42,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f60d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:42:42, skipping insertion in model container [2022-11-25 15:42:42,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:42:39" (2/3) ... [2022-11-25 15:42:42,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0f60d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:42:42, skipping insertion in model container [2022-11-25 15:42:42,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:42:42" (3/3) ... [2022-11-25 15:42:42,189 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:42:42,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:42:42,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:42:42,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:42:42,303 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;@52ac23f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:42:42,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:42:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-25 15:42:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 15:42:42,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:42,325 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-11-25 15:42:42,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:42,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash -690035522, now seen corresponding path program 1 times [2022-11-25 15:42:42,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:42,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108368632] [2022-11-25 15:42:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:42,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:42:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:42:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:42:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:42:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:42:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:42:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:42:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:42:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:42:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:42:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:42:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-25 15:42:43,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:43,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108368632] [2022-11-25 15:42:43,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108368632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:43,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:43,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:42:43,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529515576] [2022-11-25 15:42:43,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:43,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:42:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:43,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:42:43,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:42:43,389 INFO L87 Difference]: Start difference. First operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:42:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:45,211 INFO L93 Difference]: Finished difference Result 805 states and 1317 transitions. [2022-11-25 15:42:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:42:45,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-25 15:42:45,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:45,232 INFO L225 Difference]: With dead ends: 805 [2022-11-25 15:42:45,232 INFO L226 Difference]: Without dead ends: 461 [2022-11-25 15:42:45,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:42:45,245 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 139 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:45,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 664 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 15:42:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-25 15:42:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 343. [2022-11-25 15:42:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 205 states have (on average 1.2195121951219512) internal successors, (250), 207 states have internal predecessors, (250), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-25 15:42:45,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 474 transitions. [2022-11-25 15:42:45,339 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 474 transitions. Word has length 103 [2022-11-25 15:42:45,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:45,340 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 474 transitions. [2022-11-25 15:42:45,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:42:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 474 transitions. [2022-11-25 15:42:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 15:42:45,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:45,351 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-11-25 15:42:45,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:42:45,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:45,353 INFO L85 PathProgramCache]: Analyzing trace with hash -161641532, now seen corresponding path program 1 times [2022-11-25 15:42:45,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:45,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588246026] [2022-11-25 15:42:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:42:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:42:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:42:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:42:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:42:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:42:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:42:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:42:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:42:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:42:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:42:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-25 15:42:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588246026] [2022-11-25 15:42:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588246026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:42:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10776053] [2022-11-25 15:42:46,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:46,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:46,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:46,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:42:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:46,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:42:46,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-25 15:42:46,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:46,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10776053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:46,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:42:46,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-25 15:42:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021677967] [2022-11-25 15:42:46,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:46,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:42:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:42:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:42:46,648 INFO L87 Difference]: Start difference. First operand 343 states and 474 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:42:46,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:46,679 INFO L93 Difference]: Finished difference Result 429 states and 584 transitions. [2022-11-25 15:42:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:42:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-25 15:42:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:46,683 INFO L225 Difference]: With dead ends: 429 [2022-11-25 15:42:46,683 INFO L226 Difference]: Without dead ends: 344 [2022-11-25 15:42:46,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:42:46,685 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:46,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 941 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:42:46,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-25 15:42:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2022-11-25 15:42:46,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 206 states have (on average 1.2184466019417475) internal successors, (251), 208 states have internal predecessors, (251), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-25 15:42:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 475 transitions. [2022-11-25 15:42:46,717 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 475 transitions. Word has length 103 [2022-11-25 15:42:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:46,717 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 475 transitions. [2022-11-25 15:42:46,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:42:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 475 transitions. [2022-11-25 15:42:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 15:42:46,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:46,721 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2022-11-25 15:42:46,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 15:42:46,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:46,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2109657165, now seen corresponding path program 1 times [2022-11-25 15:42:46,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:46,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459448387] [2022-11-25 15:42:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:46,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:42:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:42:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:42:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:42:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:42:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 15:42:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 15:42:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 15:42:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:42:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 15:42:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 15:42:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 15:42:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 15:42:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:42:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 15:42:47,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:47,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459448387] [2022-11-25 15:42:47,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459448387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:42:47,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462313961] [2022-11-25 15:42:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:47,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:47,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:47,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:47,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:42:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:48,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:42:48,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 15:42:48,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:48,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462313961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:48,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:42:48,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-25 15:42:48,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81840188] [2022-11-25 15:42:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:48,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:42:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:48,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:42:48,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:42:48,490 INFO L87 Difference]: Start difference. First operand 344 states and 475 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 15:42:48,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:48,778 INFO L93 Difference]: Finished difference Result 654 states and 914 transitions. [2022-11-25 15:42:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:42:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 122 [2022-11-25 15:42:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:48,785 INFO L225 Difference]: With dead ends: 654 [2022-11-25 15:42:48,785 INFO L226 Difference]: Without dead ends: 346 [2022-11-25 15:42:48,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:42:48,791 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 492 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:48,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1661 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:42:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-25 15:42:48,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-11-25 15:42:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 207 states have (on average 1.2173913043478262) internal successors, (252), 210 states have internal predecessors, (252), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-25 15:42:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 484 transitions. [2022-11-25 15:42:48,844 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 484 transitions. Word has length 122 [2022-11-25 15:42:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:48,845 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 484 transitions. [2022-11-25 15:42:48,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 15:42:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 484 transitions. [2022-11-25 15:42:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 15:42:48,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:48,849 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2022-11-25 15:42:48,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:42:49,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:49,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1370525804, now seen corresponding path program 1 times [2022-11-25 15:42:49,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088217810] [2022-11-25 15:42:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:49,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 15:42:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-25 15:42:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 15:42:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:42:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:42:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-25 15:42:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 15:42:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:42:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 15:42:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 15:42:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 15:42:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 15:42:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 15:42:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:42:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 15:42:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 15:42:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 15:42:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-25 15:42:49,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:49,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088217810] [2022-11-25 15:42:49,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088217810] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:42:49,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073720452] [2022-11-25 15:42:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:49,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:49,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:49,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:49,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 15:42:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:50,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:42:50,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 15:42:50,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:50,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073720452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:50,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:42:50,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-25 15:42:50,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971482885] [2022-11-25 15:42:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:50,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:42:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:50,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:42:50,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:42:50,574 INFO L87 Difference]: Start difference. First operand 346 states and 484 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 15:42:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:50,935 INFO L93 Difference]: Finished difference Result 677 states and 969 transitions. [2022-11-25 15:42:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:42:50,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 130 [2022-11-25 15:42:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:50,941 INFO L225 Difference]: With dead ends: 677 [2022-11-25 15:42:50,941 INFO L226 Difference]: Without dead ends: 367 [2022-11-25 15:42:50,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:42:50,947 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 95 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:50,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2519 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:42:50,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-25 15:42:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2022-11-25 15:42:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:42:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-25 15:42:50,992 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 130 [2022-11-25 15:42:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:50,995 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-25 15:42:50,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 15:42:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-25 15:42:51,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 15:42:51,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:51,004 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 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] [2022-11-25 15:42:51,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:42:51,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:51,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:51,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:51,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2147450587, now seen corresponding path program 1 times [2022-11-25 15:42:51,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:51,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518857858] [2022-11-25 15:42:51,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:51,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:51,346 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:51,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190892984] [2022-11-25 15:42:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:51,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:51,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:51,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:51,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 15:42:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:51,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:42:51,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 15:42:52,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:52,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:52,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518857858] [2022-11-25 15:42:52,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:42:52,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190892984] [2022-11-25 15:42:52,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190892984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:52,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:52,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:42:52,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624425369] [2022-11-25 15:42:52,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:52,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:42:52,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:52,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:42:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:42:52,064 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 15:42:52,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:52,495 INFO L93 Difference]: Finished difference Result 702 states and 1026 transitions. [2022-11-25 15:42:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:42:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 145 [2022-11-25 15:42:52,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:52,500 INFO L225 Difference]: With dead ends: 702 [2022-11-25 15:42:52,500 INFO L226 Difference]: Without dead ends: 373 [2022-11-25 15:42:52,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:42:52,503 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 516 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:52,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 2034 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:42:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-25 15:42:52,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2022-11-25 15:42:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:42:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-25 15:42:52,536 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 145 [2022-11-25 15:42:52,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:52,537 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-25 15:42:52,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-25 15:42:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-25 15:42:52,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-25 15:42:52,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:52,541 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:42:52,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 15:42:52,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:52,751 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:52,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:52,752 INFO L85 PathProgramCache]: Analyzing trace with hash -467005651, now seen corresponding path program 1 times [2022-11-25 15:42:52,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:52,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998897156] [2022-11-25 15:42:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:52,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:52,828 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:52,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429622653] [2022-11-25 15:42:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:52,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:52,830 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:52,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 15:42:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:53,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:42:53,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:53,591 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-25 15:42:53,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:53,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:53,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998897156] [2022-11-25 15:42:53,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:42:53,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429622653] [2022-11-25 15:42:53,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429622653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:53,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:53,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:42:53,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292280826] [2022-11-25 15:42:53,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:53,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:42:53,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:53,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:42:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:42:53,595 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 15:42:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:54,082 INFO L93 Difference]: Finished difference Result 728 states and 1064 transitions. [2022-11-25 15:42:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:42:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 161 [2022-11-25 15:42:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:54,089 INFO L225 Difference]: With dead ends: 728 [2022-11-25 15:42:54,089 INFO L226 Difference]: Without dead ends: 399 [2022-11-25 15:42:54,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:42:54,095 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 117 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:54,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2883 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:42:54,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-25 15:42:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 365. [2022-11-25 15:42:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:42:54,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-25 15:42:54,128 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 161 [2022-11-25 15:42:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:54,129 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-25 15:42:54,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 15:42:54,130 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-25 15:42:54,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 15:42:54,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:54,133 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:42:54,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-25 15:42:54,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:54,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:54,344 INFO L85 PathProgramCache]: Analyzing trace with hash -298586752, now seen corresponding path program 1 times [2022-11-25 15:42:54,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:54,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412182768] [2022-11-25 15:42:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:54,420 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:54,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018328091] [2022-11-25 15:42:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:54,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:54,422 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:54,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 15:42:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:55,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:42:55,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-25 15:42:55,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:55,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412182768] [2022-11-25 15:42:55,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:42:55,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018328091] [2022-11-25 15:42:55,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018328091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:55,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:55,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:42:55,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534801824] [2022-11-25 15:42:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:55,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:42:55,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:55,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:42:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:42:55,145 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 15:42:55,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:55,726 INFO L93 Difference]: Finished difference Result 667 states and 967 transitions. [2022-11-25 15:42:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:42:55,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 176 [2022-11-25 15:42:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:55,730 INFO L225 Difference]: With dead ends: 667 [2022-11-25 15:42:55,730 INFO L226 Difference]: Without dead ends: 367 [2022-11-25 15:42:55,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:42:55,733 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 533 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:55,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 2350 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 15:42:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-25 15:42:55,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2022-11-25 15:42:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 224 states have (on average 1.2276785714285714) internal successors, (275), 228 states have internal predecessors, (275), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-25 15:42:55,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 528 transitions. [2022-11-25 15:42:55,759 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 528 transitions. Word has length 176 [2022-11-25 15:42:55,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:55,759 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 528 transitions. [2022-11-25 15:42:55,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 15:42:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 528 transitions. [2022-11-25 15:42:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-25 15:42:55,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:55,763 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:42:55,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:42:55,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 15:42:55,975 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:55,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:55,975 INFO L85 PathProgramCache]: Analyzing trace with hash -186285584, now seen corresponding path program 1 times [2022-11-25 15:42:55,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:55,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326711618] [2022-11-25 15:42:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:55,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:56,058 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985430182] [2022-11-25 15:42:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:56,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:56,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:56,060 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:56,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 15:42:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:42:56,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:42:56,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-25 15:42:56,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:56,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:56,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326711618] [2022-11-25 15:42:56,871 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:42:56,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985430182] [2022-11-25 15:42:56,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985430182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:56,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:56,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:42:56,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091428171] [2022-11-25 15:42:56,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:56,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:42:56,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:56,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:42:56,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:42:56,874 INFO L87 Difference]: Start difference. First operand 367 states and 528 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-25 15:42:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:57,534 INFO L93 Difference]: Finished difference Result 672 states and 982 transitions. [2022-11-25 15:42:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:42:57,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 199 [2022-11-25 15:42:57,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:57,538 INFO L225 Difference]: With dead ends: 672 [2022-11-25 15:42:57,538 INFO L226 Difference]: Without dead ends: 370 [2022-11-25 15:42:57,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:42:57,541 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 557 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:57,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2689 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 15:42:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-25 15:42:57,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-25 15:42:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-25 15:42:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 529 transitions. [2022-11-25 15:42:57,613 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 529 transitions. Word has length 199 [2022-11-25 15:42:57,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:57,614 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 529 transitions. [2022-11-25 15:42:57,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-25 15:42:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 529 transitions. [2022-11-25 15:42:57,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-25 15:42:57,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:57,618 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:42:57,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:42:57,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:57,830 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:57,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:57,831 INFO L85 PathProgramCache]: Analyzing trace with hash 157414643, now seen corresponding path program 2 times [2022-11-25 15:42:57,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:57,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876608724] [2022-11-25 15:42:57,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:57,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:57,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:57,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111924929] [2022-11-25 15:42:57,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:42:57,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:57,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:57,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:57,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 15:42:58,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:42:58,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:42:58,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 15:42:58,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:42:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-25 15:42:58,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:42:58,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:42:58,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876608724] [2022-11-25 15:42:58,796 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:42:58,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111924929] [2022-11-25 15:42:58,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111924929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:42:58,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:42:58,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:42:58,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533950078] [2022-11-25 15:42:58,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:42:58,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:42:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:42:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:42:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:42:58,802 INFO L87 Difference]: Start difference. First operand 368 states and 529 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 15:42:59,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:42:59,387 INFO L93 Difference]: Finished difference Result 664 states and 966 transitions. [2022-11-25 15:42:59,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:42:59,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 230 [2022-11-25 15:42:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:42:59,392 INFO L225 Difference]: With dead ends: 664 [2022-11-25 15:42:59,392 INFO L226 Difference]: Without dead ends: 370 [2022-11-25 15:42:59,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:42:59,395 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 551 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:42:59,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 3029 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 15:42:59,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-25 15:42:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-25 15:42:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 231 states have internal predecessors, (277), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (142), 114 states have call predecessors, (142), 113 states have call successors, (142) [2022-11-25 15:42:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 534 transitions. [2022-11-25 15:42:59,420 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 534 transitions. Word has length 230 [2022-11-25 15:42:59,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:42:59,421 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 534 transitions. [2022-11-25 15:42:59,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-25 15:42:59,422 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 534 transitions. [2022-11-25 15:42:59,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-25 15:42:59,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:42:59,426 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:42:59,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-25 15:42:59,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:59,648 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:42:59,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:42:59,649 INFO L85 PathProgramCache]: Analyzing trace with hash 447641373, now seen corresponding path program 1 times [2022-11-25 15:42:59,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:42:59,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685912244] [2022-11-25 15:42:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:59,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:42:59,833 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:42:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562369596] [2022-11-25 15:42:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:42:59,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:42:59,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:42:59,835 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:42:59,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 15:43:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:00,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-25 15:43:00,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-25 15:43:00,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:00,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:00,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685912244] [2022-11-25 15:43:00,872 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:43:00,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562369596] [2022-11-25 15:43:00,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562369596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:00,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:00,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 15:43:00,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110696847] [2022-11-25 15:43:00,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:00,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:43:00,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:00,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:43:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:43:00,875 INFO L87 Difference]: Start difference. First operand 370 states and 534 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:43:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:01,667 INFO L93 Difference]: Finished difference Result 666 states and 969 transitions. [2022-11-25 15:43:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:43:01,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 276 [2022-11-25 15:43:01,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:01,672 INFO L225 Difference]: With dead ends: 666 [2022-11-25 15:43:01,672 INFO L226 Difference]: Without dead ends: 370 [2022-11-25 15:43:01,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-25 15:43:01,675 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 578 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:01,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 3339 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 15:43:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-25 15:43:01,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-25 15:43:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-11-25 15:43:01,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 527 transitions. [2022-11-25 15:43:01,701 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 527 transitions. Word has length 276 [2022-11-25 15:43:01,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:01,701 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 527 transitions. [2022-11-25 15:43:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:43:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 527 transitions. [2022-11-25 15:43:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-25 15:43:01,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:01,705 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-25 15:43:01,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:01,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 15:43:01,918 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash -548532414, now seen corresponding path program 1 times [2022-11-25 15:43:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:01,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512639323] [2022-11-25 15:43:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:02,022 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:43:02,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725242625] [2022-11-25 15:43:02,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:02,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:02,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:02,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 15:43:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:02,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:43:02,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:02,893 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 185 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-25 15:43:02,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:43:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-25 15:43:03,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:03,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512639323] [2022-11-25 15:43:03,305 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:43:03,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725242625] [2022-11-25 15:43:03,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725242625] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:43:03,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:43:03,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-25 15:43:03,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104375557] [2022-11-25 15:43:03,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:43:03,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 15:43:03,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:43:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 15:43:03,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:43:03,308 INFO L87 Difference]: Start difference. First operand 368 states and 527 transitions. Second operand has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-25 15:43:03,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:03,767 INFO L93 Difference]: Finished difference Result 690 states and 1005 transitions. [2022-11-25 15:43:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:43:03,768 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) Word has length 218 [2022-11-25 15:43:03,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:03,771 INFO L225 Difference]: With dead ends: 690 [2022-11-25 15:43:03,771 INFO L226 Difference]: Without dead ends: 387 [2022-11-25 15:43:03,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 421 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:43:03,774 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 259 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:03,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 2846 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 15:43:03,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-25 15:43:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 384. [2022-11-25 15:43:03,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 239 states have (on average 1.2343096234309623) internal successors, (295), 243 states have internal predecessors, (295), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2022-11-25 15:43:03,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 554 transitions. [2022-11-25 15:43:03,801 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 554 transitions. Word has length 218 [2022-11-25 15:43:03,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:03,802 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 554 transitions. [2022-11-25 15:43:03,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-25 15:43:03,802 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 554 transitions. [2022-11-25 15:43:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-25 15:43:03,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:03,806 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:03,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:04,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:04,018 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 294303300, now seen corresponding path program 2 times [2022-11-25 15:43:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:43:04,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079613277] [2022-11-25 15:43:04,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:04,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:43:04,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 15:43:04,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158741145] [2022-11-25 15:43:04,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:43:04,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:04,143 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:43:04,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 15:43:05,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:43:05,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:43:05,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-25 15:43:05,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:06,175 INFO L321 Elim1Store]: treesize reduction 164, result has 50.2 percent of original size [2022-11-25 15:43:06,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 42 select indices, 42 select index equivalence classes, 820 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 41 case distinctions, treesize of input 211 treesize of output 291 [2022-11-25 15:43:10,284 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 41 dual juncts. [2022-11-25 15:43:10,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:43:10,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079613277] [2022-11-25 15:43:10,285 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 15:43:10,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158741145] [2022-11-25 15:43:10,285 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-25 15:43:10,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:10,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:43:10,492 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) [2022-11-25 15:43:10,495 INFO L158 Benchmark]: Toolchain (without parser) took 34073.93ms. Allocated memory was 169.9MB in the beginning and 511.7MB in the end (delta: 341.8MB). Free memory was 129.6MB in the beginning and 164.8MB in the end (delta: -35.2MB). Peak memory consumption was 310.5MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,495 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:43:10,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3418.47ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 97.4MB in the end (delta: 31.6MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.79ms. Allocated memory is still 169.9MB. Free memory was 97.4MB in the beginning and 85.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,496 INFO L158 Benchmark]: Boogie Preprocessor took 139.26ms. Allocated memory is still 169.9MB. Free memory was 85.9MB in the beginning and 78.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,497 INFO L158 Benchmark]: RCFGBuilder took 1962.58ms. Allocated memory was 169.9MB in the beginning and 234.9MB in the end (delta: 65.0MB). Free memory was 77.6MB in the beginning and 128.7MB in the end (delta: -51.2MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,497 INFO L158 Benchmark]: TraceAbstraction took 28314.66ms. Allocated memory was 234.9MB in the beginning and 511.7MB in the end (delta: 276.8MB). Free memory was 128.7MB in the beginning and 164.8MB in the end (delta: -36.1MB). Peak memory consumption was 242.4MB. Max. memory is 16.1GB. [2022-11-25 15:43:10,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3418.47ms. Allocated memory is still 169.9MB. Free memory was 129.0MB in the beginning and 97.4MB in the end (delta: 31.6MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 227.79ms. Allocated memory is still 169.9MB. Free memory was 97.4MB in the beginning and 85.9MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.26ms. Allocated memory is still 169.9MB. Free memory was 85.9MB in the beginning and 78.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1962.58ms. Allocated memory was 169.9MB in the beginning and 234.9MB in the end (delta: 65.0MB). Free memory was 77.6MB in the beginning and 128.7MB in the end (delta: -51.2MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 28314.66ms. Allocated memory was 234.9MB in the beginning and 511.7MB in the end (delta: 276.8MB). Free memory was 128.7MB in the beginning and 164.8MB in the end (delta: -36.1MB). Peak memory consumption was 242.4MB. 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. [2022-11-25 15:43:10,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R --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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- 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-38b53e6 [2022-11-25 15:43:13,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:43:13,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:43:13,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:43:13,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:43:13,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:43:13,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:43:13,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:43:13,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:43:13,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:43:13,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:43:13,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:43:13,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:43:13,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:43:13,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:43:13,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:43:13,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:43:13,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:43:13,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:43:13,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:43:13,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:43:13,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:43:13,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:43:13,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:43:13,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:43:13,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:43:13,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:43:13,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:43:13,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:43:13,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:43:13,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:43:13,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:43:13,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:43:13,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:43:13,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:43:13,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:43:13,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:43:13,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:43:13,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:43:13,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:43:13,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:43:13,219 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 15:43:13,262 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:43:13,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:43:13,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:43:13,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:43:13,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:43:13,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:43:13,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:43:13,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:43:13,266 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:43:13,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:43:13,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:43:13,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:43:13,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:43:13,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:43:13,269 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:43:13,269 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 15:43:13,269 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 15:43:13,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:43:13,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:43:13,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:43:13,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:43:13,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:43:13,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:43:13,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:43:13,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:43:13,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:43:13,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:43:13,272 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 15:43:13,272 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 15:43:13,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:43:13,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:43:13,273 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:43:13,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:43:13,274 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 15:43:13,274 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_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-25 15:43:13,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:43:13,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:43:13,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:43:13,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:43:13,695 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:43:13,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:43:16,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:43:17,447 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:43:17,448 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:43:17,491 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/09e4492df/f361b3db89964c33b2638eea36fd78e1/FLAG8eee698c9 [2022-11-25 15:43:17,519 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/data/09e4492df/f361b3db89964c33b2638eea36fd78e1 [2022-11-25 15:43:17,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:43:17,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:43:17,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:43:17,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:43:17,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:43:17,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:43:17" (1/1) ... [2022-11-25 15:43:17,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0a2361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:17, skipping insertion in model container [2022-11-25 15:43:17,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:43:17" (1/1) ... [2022-11-25 15:43:17,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:43:17,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:43:17,944 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-25 15:43:17,951 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-25 15:43:18,960 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:18,967 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:18,970 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:18,971 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:18,972 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:18,973 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:18,980 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:18,998 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,000 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,001 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,006 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,008 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,013 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,014 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,015 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,017 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,018 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,120 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:19,121 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:19,122 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:19,130 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 15:43:19,132 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 15:43:19,133 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 15:43:19,510 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:19,514 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 15:43:19,517 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 15:43:19,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 15:43:19,524 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 15:43:19,526 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 15:43:19,530 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 15:43:19,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 15:43:19,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 15:43:19,533 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 15:43:19,534 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 15:43:19,709 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 15:43:19,734 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,734 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,740 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,743 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,746 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,747 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,749 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,752 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,756 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,756 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,757 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,758 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,759 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:19,822 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:43:19,843 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,844 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,844 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,845 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,845 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,845 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,846 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,846 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:19,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,847 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,848 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,848 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,848 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,849 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,851 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,852 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,852 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,853 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,856 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,857 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,865 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,866 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,866 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:19,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:43:19,932 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-25 15:43:19,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:43:19,984 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-25 15:43:19,985 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-25 15:43:20,059 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,061 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,062 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,062 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,063 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,063 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,065 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,070 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,076 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,077 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,078 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,078 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,079 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,080 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,081 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,089 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,092 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,093 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,100 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 15:43:20,102 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 15:43:20,103 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 15:43:20,138 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:20,143 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 15:43:20,144 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 15:43:20,145 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 15:43:20,146 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 15:43:20,148 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 15:43:20,148 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 15:43:20,149 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 15:43:20,149 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 15:43:20,150 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 15:43:20,150 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 15:43:20,187 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 15:43:20,212 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,213 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,214 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,216 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,220 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,235 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,236 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,238 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,239 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,240 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,240 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,241 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,242 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,242 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,277 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:43:20,285 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,286 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,287 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,287 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,288 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,288 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:20,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,289 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,290 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,291 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,291 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,292 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,295 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,296 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,306 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,308 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,308 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:43:20,345 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:43:20,369 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-25 15:43:20,375 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_5749e23d-1058-430d-aa38-8e13bab36578/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-25 15:43:20,437 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,462 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,463 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,465 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,472 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,487 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,487 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,491 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,492 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,494 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,495 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,495 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,496 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,496 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,507 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,523 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,523 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 15:43:20,534 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 15:43:20,536 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 15:43:20,536 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 15:43:20,583 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:20,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 15:43:20,598 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 15:43:20,599 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 15:43:20,600 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 15:43:20,601 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 15:43:20,601 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 15:43:20,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 15:43:20,602 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 15:43:20,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 15:43:20,603 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 15:43:20,638 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 15:43:20,658 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,659 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,661 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,662 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,665 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,666 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,667 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,669 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,670 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,671 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,672 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,673 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,673 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,673 WARN L623 FunctionHandler]: Unknown extern function my_memcpy [2022-11-25 15:43:20,739 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:43:20,749 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,750 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,755 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,756 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,756 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,757 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,757 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,757 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 15:43:20,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,758 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,759 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,759 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,760 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,763 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,768 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,775 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,776 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 15:43:20,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:43:21,146 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:43:21,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21 WrapperNode [2022-11-25 15:43:21,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:43:21,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:43:21,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:43:21,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:43:21,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,316 INFO L138 Inliner]: procedures = 717, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 907 [2022-11-25 15:43:21,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:43:21,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:43:21,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:43:21,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:43:21,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:43:21,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:43:21,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:43:21,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:43:21,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (1/1) ... [2022-11-25 15:43:21,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:43:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:43:21,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:43:21,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:43:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-25 15:43:21,575 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-25 15:43:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-25 15:43:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-25 15:43:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-25 15:43:21,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-25 15:43:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:43:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-25 15:43:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-25 15:43:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-25 15:43:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-25 15:43:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 15:43:21,577 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 15:43:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 15:43:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 15:43:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-25 15:43:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-25 15:43:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-25 15:43:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 15:43:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 15:43:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 15:43:21,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 15:43:21,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-25 15:43:21,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-25 15:43:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:43:21,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:43:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:43:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-25 15:43:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-25 15:43:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-25 15:43:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-25 15:43:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:43:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:43:21,588 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 15:43:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 15:43:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-25 15:43:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-25 15:43:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 15:43:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 15:43:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-25 15:43:21,589 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-25 15:43:21,589 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-25 15:43:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-25 15:43:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-25 15:43:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-25 15:43:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:43:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:43:21,590 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-25 15:43:21,590 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:43:21,591 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-25 15:43:21,591 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-25 15:43:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 15:43:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 15:43:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 15:43:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 15:43:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-25 15:43:21,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-25 15:43:21,592 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 15:43:21,593 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-25 15:43:22,036 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:43:22,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:43:25,111 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:43:25,128 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:43:25,128 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 15:43:25,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:43:25 BoogieIcfgContainer [2022-11-25 15:43:25,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:43:25,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:43:25,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:43:25,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:43:25,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:43:17" (1/3) ... [2022-11-25 15:43:25,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f09121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:43:25, skipping insertion in model container [2022-11-25 15:43:25,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:21" (2/3) ... [2022-11-25 15:43:25,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f09121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:43:25, skipping insertion in model container [2022-11-25 15:43:25,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:43:25" (3/3) ... [2022-11-25 15:43:25,145 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-25 15:43:25,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:43:25,166 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:43:25,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:43:25,258 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;@61a4350a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:43:25,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:43:25,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-25 15:43:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 15:43:25,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:25,300 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-11-25 15:43:25,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:25,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:25,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1022866682, now seen corresponding path program 1 times [2022-11-25 15:43:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:25,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596420128] [2022-11-25 15:43:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:25,334 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 [2022-11-25 15:43:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:25,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 15:43:26,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-25 15:43:26,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:26,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:26,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596420128] [2022-11-25 15:43:26,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1596420128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:26,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:26,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:43:26,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803406703] [2022-11-25 15:43:26,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:26,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:43:26,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:26,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:43:26,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:43:26,379 INFO L87 Difference]: Start difference. First operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:43:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:26,516 INFO L93 Difference]: Finished difference Result 681 states and 1052 transitions. [2022-11-25 15:43:26,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:43:26,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-25 15:43:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:26,539 INFO L225 Difference]: With dead ends: 681 [2022-11-25 15:43:26,539 INFO L226 Difference]: Without dead ends: 340 [2022-11-25 15:43:26,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:43:26,554 INFO L413 NwaCegarLoop]: 476 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, 476 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 [2022-11-25 15:43:26,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:43:26,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-25 15:43:26,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-11-25 15:43:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 202 states have (on average 1.2227722772277227) internal successors, (247), 204 states have internal predecessors, (247), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-25 15:43:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 471 transitions. [2022-11-25 15:43:26,660 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 471 transitions. Word has length 103 [2022-11-25 15:43:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:26,662 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 471 transitions. [2022-11-25 15:43:26,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 15:43:26,663 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 471 transitions. [2022-11-25 15:43:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-25 15:43:26,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:26,666 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 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] [2022-11-25 15:43:26,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:26,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:26,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:26,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:26,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1551260672, now seen corresponding path program 1 times [2022-11-25 15:43:26,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338945557] [2022-11-25 15:43:26,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:26,883 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 [2022-11-25 15:43:26,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:26,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:26,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:27,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:43:27,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 15:43:27,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:27,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:27,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338945557] [2022-11-25 15:43:27,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338945557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:27,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:27,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:43:27,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812892461] [2022-11-25 15:43:27,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:27,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:43:27,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:27,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:43:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:43:27,927 INFO L87 Difference]: Start difference. First operand 340 states and 471 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:43:28,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:28,299 INFO L93 Difference]: Finished difference Result 646 states and 906 transitions. [2022-11-25 15:43:28,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:43:28,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2022-11-25 15:43:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:28,305 INFO L225 Difference]: With dead ends: 646 [2022-11-25 15:43:28,305 INFO L226 Difference]: Without dead ends: 342 [2022-11-25 15:43:28,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:43:28,308 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 45 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:28,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1719 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 15:43:28,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-25 15:43:28,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-11-25 15:43:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 203 states have (on average 1.2216748768472907) internal successors, (248), 206 states have internal predecessors, (248), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-25 15:43:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 480 transitions. [2022-11-25 15:43:28,339 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 480 transitions. Word has length 103 [2022-11-25 15:43:28,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:28,340 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 480 transitions. [2022-11-25 15:43:28,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:43:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 480 transitions. [2022-11-25 15:43:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 15:43:28,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:28,342 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2022-11-25 15:43:28,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:28,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:28,561 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:28,561 INFO L85 PathProgramCache]: Analyzing trace with hash -51291587, now seen corresponding path program 1 times [2022-11-25 15:43:28,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:28,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068949889] [2022-11-25 15:43:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:28,566 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 [2022-11-25 15:43:28,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:28,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:28,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:29,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:43:29,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:29,610 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 15:43:29,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:29,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:29,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068949889] [2022-11-25 15:43:29,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068949889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:29,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:29,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:43:29,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019327746] [2022-11-25 15:43:29,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:29,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:43:29,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:43:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:43:29,615 INFO L87 Difference]: Start difference. First operand 342 states and 480 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-25 15:43:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:30,587 INFO L93 Difference]: Finished difference Result 669 states and 961 transitions. [2022-11-25 15:43:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:43:30,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2022-11-25 15:43:30,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:30,591 INFO L225 Difference]: With dead ends: 669 [2022-11-25 15:43:30,591 INFO L226 Difference]: Without dead ends: 363 [2022-11-25 15:43:30,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:43:30,594 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 79 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:30,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2571 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 15:43:30,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-25 15:43:30,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2022-11-25 15:43:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:43:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-25 15:43:30,624 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 111 [2022-11-25 15:43:30,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:30,625 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-25 15:43:30,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-25 15:43:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-25 15:43:30,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-25 15:43:30,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:30,627 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 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] [2022-11-25 15:43:30,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:30,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:30,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1795067440, now seen corresponding path program 1 times [2022-11-25 15:43:30,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:30,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731294596] [2022-11-25 15:43:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:30,848 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 [2022-11-25 15:43:30,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:30,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:30,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:31,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:43:31,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 15:43:32,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:32,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:32,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731294596] [2022-11-25 15:43:32,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731294596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:32,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:32,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:43:32,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19061096] [2022-11-25 15:43:32,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:32,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:43:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:43:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:43:32,103 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-25 15:43:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:32,781 INFO L93 Difference]: Finished difference Result 694 states and 1018 transitions. [2022-11-25 15:43:32,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:43:32,782 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), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2022-11-25 15:43:32,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:32,785 INFO L225 Difference]: With dead ends: 694 [2022-11-25 15:43:32,786 INFO L226 Difference]: Without dead ends: 369 [2022-11-25 15:43:32,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:43:32,789 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 68 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:32,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2108 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 15:43:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-25 15:43:32,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 361. [2022-11-25 15:43:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:43:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-25 15:43:32,817 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 126 [2022-11-25 15:43:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:32,817 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-25 15:43:32,818 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), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-25 15:43:32,818 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-25 15:43:32,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 15:43:32,820 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:32,820 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:32,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:33,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:33,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:33,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:33,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1135568802, now seen corresponding path program 1 times [2022-11-25 15:43:33,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:33,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728512595] [2022-11-25 15:43:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:33,038 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 [2022-11-25 15:43:33,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:33,039 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:33,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:34,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:43:34,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-25 15:43:34,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:34,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:34,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728512595] [2022-11-25 15:43:34,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728512595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:34,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:34,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:43:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708167573] [2022-11-25 15:43:34,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:34,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:43:34,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:34,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:43:34,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:43:34,391 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-25 15:43:35,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:35,802 INFO L93 Difference]: Finished difference Result 720 states and 1056 transitions. [2022-11-25 15:43:35,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:43:35,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2022-11-25 15:43:35,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:35,806 INFO L225 Difference]: With dead ends: 720 [2022-11-25 15:43:35,806 INFO L226 Difference]: Without dead ends: 395 [2022-11-25 15:43:35,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:43:35,809 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 117 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:35,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2862 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 15:43:35,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-25 15:43:35,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 361. [2022-11-25 15:43:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:43:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-25 15:43:35,836 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 142 [2022-11-25 15:43:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:35,837 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-25 15:43:35,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-25 15:43:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-25 15:43:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 15:43:35,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:35,840 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:35,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:36,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:36,059 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:36,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:36,060 INFO L85 PathProgramCache]: Analyzing trace with hash 781855149, now seen corresponding path program 1 times [2022-11-25 15:43:36,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:36,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609135187] [2022-11-25 15:43:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:36,062 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 [2022-11-25 15:43:36,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:36,062 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:36,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:37,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:43:37,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-25 15:43:38,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:38,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:38,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609135187] [2022-11-25 15:43:38,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609135187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:38,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:38,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:43:38,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023065653] [2022-11-25 15:43:38,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:38,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:43:38,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:38,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:43:38,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:43:38,227 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:43:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:43,030 INFO L93 Difference]: Finished difference Result 722 states and 1073 transitions. [2022-11-25 15:43:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:43:43,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-25 15:43:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:43,039 INFO L225 Difference]: With dead ends: 722 [2022-11-25 15:43:43,039 INFO L226 Difference]: Without dead ends: 397 [2022-11-25 15:43:43,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:43:43,042 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 23 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:43,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2202 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 15:43:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-25 15:43:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 369. [2022-11-25 15:43:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2334801762114538) internal successors, (280), 230 states have internal predecessors, (280), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:43:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 527 transitions. [2022-11-25 15:43:43,087 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 527 transitions. Word has length 157 [2022-11-25 15:43:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:43,088 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 527 transitions. [2022-11-25 15:43:43,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:43:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 527 transitions. [2022-11-25 15:43:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 15:43:43,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:43,091 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:43,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:43,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:43,307 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:43,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:43,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1974772117, now seen corresponding path program 1 times [2022-11-25 15:43:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177664451] [2022-11-25 15:43:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:43,310 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 [2022-11-25 15:43:43,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:43,312 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:43,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:44,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 1589 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:43:44,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-25 15:43:45,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:43:45,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:43:45,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177664451] [2022-11-25 15:43:45,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177664451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:43:45,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:43:45,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:43:45,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049153714] [2022-11-25 15:43:45,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:43:45,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:43:45,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:43:45,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:43:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:43:45,312 INFO L87 Difference]: Start difference. First operand 369 states and 527 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:43:50,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:43:50,908 INFO L93 Difference]: Finished difference Result 732 states and 1083 transitions. [2022-11-25 15:43:50,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:43:50,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-25 15:43:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:43:50,914 INFO L225 Difference]: With dead ends: 732 [2022-11-25 15:43:50,914 INFO L226 Difference]: Without dead ends: 399 [2022-11-25 15:43:50,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:43:50,917 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 20 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:43:50,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2666 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 15:43:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-25 15:43:50,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 373. [2022-11-25 15:43:50,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2294372294372293) internal successors, (284), 234 states have internal predecessors, (284), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-25 15:43:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 531 transitions. [2022-11-25 15:43:50,943 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 531 transitions. Word has length 157 [2022-11-25 15:43:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:43:50,943 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 531 transitions. [2022-11-25 15:43:50,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:43:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 531 transitions. [2022-11-25 15:43:50,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-25 15:43:50,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:43:50,947 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:43:50,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 15:43:51,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:43:51,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:43:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:43:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1839114921, now seen corresponding path program 1 times [2022-11-25 15:43:51,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:43:51,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728885075] [2022-11-25 15:43:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:43:51,166 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 [2022-11-25 15:43:51,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:43:51,169 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:43:51,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:43:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:43:52,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-25 15:43:52,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:43:55,239 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64))))))) is different from true [2022-11-25 15:43:57,570 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))))))) is different from true [2022-11-25 15:43:57,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-25 15:43:57,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-25 15:43:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 4 not checked. [2022-11-25 15:43:57,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:44:00,459 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-25 15:44:00,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-11-25 15:44:00,513 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-25 15:44:00,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-11-25 15:44:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-25 15:44:00,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:00,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728885075] [2022-11-25 15:44:00,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728885075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:44:00,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:44:00,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2022-11-25 15:44:00,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450424192] [2022-11-25 15:44:00,683 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:44:00,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 15:44:00,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:00,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 15:44:00,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=108, Unknown=2, NotChecked=42, Total=182 [2022-11-25 15:44:00,685 INFO L87 Difference]: Start difference. First operand 373 states and 531 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-25 15:44:05,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:44:07,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:44:10,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:10,549 INFO L93 Difference]: Finished difference Result 759 states and 1130 transitions. [2022-11-25 15:44:10,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 15:44:10,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 157 [2022-11-25 15:44:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:10,555 INFO L225 Difference]: With dead ends: 759 [2022-11-25 15:44:10,555 INFO L226 Difference]: Without dead ends: 448 [2022-11-25 15:44:10,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=113, Invalid=355, Unknown=2, NotChecked=82, Total=552 [2022-11-25 15:44:10,558 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 94 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1105 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:10,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 3330 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 590 Invalid, 2 Unknown, 1105 Unchecked, 8.6s Time] [2022-11-25 15:44:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-25 15:44:10,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 390. [2022-11-25 15:44:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (144), 117 states have call predecessors, (144), 115 states have call successors, (144) [2022-11-25 15:44:10,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 557 transitions. [2022-11-25 15:44:10,592 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 557 transitions. Word has length 157 [2022-11-25 15:44:10,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:10,592 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 557 transitions. [2022-11-25 15:44:10,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-25 15:44:10,593 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 557 transitions. [2022-11-25 15:44:10,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-25 15:44:10,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:10,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:10,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:10,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:10,815 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1514968390, now seen corresponding path program 1 times [2022-11-25 15:44:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:10,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357261475] [2022-11-25 15:44:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:10,817 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 [2022-11-25 15:44:10,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:10,818 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:12,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:44:12,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-25 15:44:12,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:12,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:12,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357261475] [2022-11-25 15:44:12,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357261475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:12,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:12,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:44:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895828127] [2022-11-25 15:44:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:44:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:12,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:44:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:44:12,249 INFO L87 Difference]: Start difference. First operand 390 states and 557 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 15:44:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:12,867 INFO L93 Difference]: Finished difference Result 704 states and 1024 transitions. [2022-11-25 15:44:12,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:44:12,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 159 [2022-11-25 15:44:12,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:12,872 INFO L225 Difference]: With dead ends: 704 [2022-11-25 15:44:12,872 INFO L226 Difference]: Without dead ends: 392 [2022-11-25 15:44:12,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:44:12,875 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 99 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:12,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 2499 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 15:44:12,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-25 15:44:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-25 15:44:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2022-11-25 15:44:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 564 transitions. [2022-11-25 15:44:12,907 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 564 transitions. Word has length 159 [2022-11-25 15:44:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:12,907 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 564 transitions. [2022-11-25 15:44:12,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-25 15:44:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 564 transitions. [2022-11-25 15:44:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 15:44:12,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:12,911 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:12,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:13,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:13,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:13,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1747799334, now seen corresponding path program 1 times [2022-11-25 15:44:13,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:13,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439352762] [2022-11-25 15:44:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:13,127 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 [2022-11-25 15:44:13,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:13,128 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:13,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:14,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:44:14,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-25 15:44:14,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:14,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:14,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439352762] [2022-11-25 15:44:14,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439352762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:14,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:14,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:44:14,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650021533] [2022-11-25 15:44:14,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:14,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:44:14,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:14,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:44:14,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:44:14,700 INFO L87 Difference]: Start difference. First operand 392 states and 564 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-25 15:44:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:15,980 INFO L93 Difference]: Finished difference Result 728 states and 1065 transitions. [2022-11-25 15:44:15,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:44:15,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 175 [2022-11-25 15:44:15,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:15,985 INFO L225 Difference]: With dead ends: 728 [2022-11-25 15:44:15,986 INFO L226 Difference]: Without dead ends: 414 [2022-11-25 15:44:15,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:44:15,989 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 150 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:15,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3233 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 15:44:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-25 15:44:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2022-11-25 15:44:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-25 15:44:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-25 15:44:16,026 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 175 [2022-11-25 15:44:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:16,029 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-25 15:44:16,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-25 15:44:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-25 15:44:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-25 15:44:16,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:16,033 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-25 15:44:16,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:16,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:16,255 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:16,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1181735422, now seen corresponding path program 1 times [2022-11-25 15:44:16,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:16,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113249765] [2022-11-25 15:44:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:16,259 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 [2022-11-25 15:44:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:16,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:16,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:18,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:44:18,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-25 15:44:18,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:18,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:18,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113249765] [2022-11-25 15:44:18,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113249765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:18,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:18,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:44:18,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014420896] [2022-11-25 15:44:18,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:18,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:44:18,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:18,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:44:18,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:44:18,297 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-25 15:44:19,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:19,288 INFO L93 Difference]: Finished difference Result 754 states and 1108 transitions. [2022-11-25 15:44:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:44:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 205 [2022-11-25 15:44:19,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:19,292 INFO L225 Difference]: With dead ends: 754 [2022-11-25 15:44:19,293 INFO L226 Difference]: Without dead ends: 420 [2022-11-25 15:44:19,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:44:19,296 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 122 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:19,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2867 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 15:44:19,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-25 15:44:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-11-25 15:44:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-25 15:44:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-25 15:44:19,331 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 205 [2022-11-25 15:44:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:19,332 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-25 15:44:19,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-25 15:44:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-25 15:44:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-25 15:44:19,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:19,336 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:19,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:19,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:19,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:19,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash -869942382, now seen corresponding path program 1 times [2022-11-25 15:44:19,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:19,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53756822] [2022-11-25 15:44:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:19,562 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 [2022-11-25 15:44:19,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:19,562 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:19,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:21,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:44:21,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-25 15:44:21,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:21,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:21,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53756822] [2022-11-25 15:44:21,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53756822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:21,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:21,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:44:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261946181] [2022-11-25 15:44:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:21,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:44:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:44:21,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:44:21,650 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 15:44:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:23,503 INFO L93 Difference]: Finished difference Result 770 states and 1124 transitions. [2022-11-25 15:44:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:44:23,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 217 [2022-11-25 15:44:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:23,508 INFO L225 Difference]: With dead ends: 770 [2022-11-25 15:44:23,508 INFO L226 Difference]: Without dead ends: 436 [2022-11-25 15:44:23,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:44:23,511 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 171 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:23,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 3579 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 15:44:23,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-25 15:44:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 390. [2022-11-25 15:44:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (142), 117 states have call predecessors, (142), 115 states have call successors, (142) [2022-11-25 15:44:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 555 transitions. [2022-11-25 15:44:23,568 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 555 transitions. Word has length 217 [2022-11-25 15:44:23,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:23,568 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 555 transitions. [2022-11-25 15:44:23,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 15:44:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 555 transitions. [2022-11-25 15:44:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-25 15:44:23,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:23,572 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:23,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:23,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:23,791 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:23,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1451940861, now seen corresponding path program 1 times [2022-11-25 15:44:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:23,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394887131] [2022-11-25 15:44:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:23,794 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 [2022-11-25 15:44:23,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:23,796 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:23,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:25,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:44:25,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-25 15:44:26,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:26,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:26,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394887131] [2022-11-25 15:44:26,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394887131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:26,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:26,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:44:26,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365624647] [2022-11-25 15:44:26,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:26,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:44:26,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:44:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:44:26,176 INFO L87 Difference]: Start difference. First operand 390 states and 555 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 15:44:27,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:27,129 INFO L93 Difference]: Finished difference Result 696 states and 1005 transitions. [2022-11-25 15:44:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:44:27,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 232 [2022-11-25 15:44:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:27,133 INFO L225 Difference]: With dead ends: 696 [2022-11-25 15:44:27,133 INFO L226 Difference]: Without dead ends: 392 [2022-11-25 15:44:27,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:44:27,136 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 129 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:27,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3278 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 15:44:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-25 15:44:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-25 15:44:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-25 15:44:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 560 transitions. [2022-11-25 15:44:27,164 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 560 transitions. Word has length 232 [2022-11-25 15:44:27,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:27,165 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 560 transitions. [2022-11-25 15:44:27,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-25 15:44:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 560 transitions. [2022-11-25 15:44:27,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-25 15:44:27,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:27,170 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:27,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:27,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:27,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:27,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:27,384 INFO L85 PathProgramCache]: Analyzing trace with hash 419999514, now seen corresponding path program 1 times [2022-11-25 15:44:27,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:27,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937783426] [2022-11-25 15:44:27,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:27,386 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 [2022-11-25 15:44:27,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:27,387 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:27,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:29,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:44:29,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-25 15:44:29,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:29,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:29,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937783426] [2022-11-25 15:44:29,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937783426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:29,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:29,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:44:29,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282515372] [2022-11-25 15:44:29,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:29,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:44:29,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:29,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:44:29,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:44:29,739 INFO L87 Difference]: Start difference. First operand 392 states and 560 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 15:44:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:29,790 INFO L93 Difference]: Finished difference Result 517 states and 720 transitions. [2022-11-25 15:44:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:44:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 267 [2022-11-25 15:44:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:29,794 INFO L225 Difference]: With dead ends: 517 [2022-11-25 15:44:29,794 INFO L226 Difference]: Without dead ends: 393 [2022-11-25 15:44:29,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:44:29,796 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:29,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:44:29,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-25 15:44:29,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-25 15:44:29,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 249 states have internal predecessors, (298), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-25 15:44:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 561 transitions. [2022-11-25 15:44:29,827 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 561 transitions. Word has length 267 [2022-11-25 15:44:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:29,828 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 561 transitions. [2022-11-25 15:44:29,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 15:44:29,829 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 561 transitions. [2022-11-25 15:44:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-25 15:44:29,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:29,831 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 15:44:29,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:30,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:30,055 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:30,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash -539719671, now seen corresponding path program 1 times [2022-11-25 15:44:30,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:30,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [29433408] [2022-11-25 15:44:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:30,058 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 [2022-11-25 15:44:30,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:30,059 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:30,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:32,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:44:32,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-25 15:44:32,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:32,560 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:32,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [29433408] [2022-11-25 15:44:32,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [29433408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:32,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:32,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 15:44:32,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076068633] [2022-11-25 15:44:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:32,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:44:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:44:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:44:32,591 INFO L87 Difference]: Start difference. First operand 393 states and 561 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 15:44:34,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:34,267 INFO L93 Difference]: Finished difference Result 721 states and 1043 transitions. [2022-11-25 15:44:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:44:34,268 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 248 [2022-11-25 15:44:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:34,272 INFO L225 Difference]: With dead ends: 721 [2022-11-25 15:44:34,272 INFO L226 Difference]: Without dead ends: 415 [2022-11-25 15:44:34,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:44:34,275 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 179 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:34,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3972 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 15:44:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-25 15:44:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2022-11-25 15:44:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-25 15:44:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-25 15:44:34,306 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 248 [2022-11-25 15:44:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:34,307 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-25 15:44:34,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-25 15:44:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-25 15:44:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-25 15:44:34,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:34,310 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:34,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:34,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:34,523 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash 563225069, now seen corresponding path program 1 times [2022-11-25 15:44:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800047578] [2022-11-25 15:44:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:34,526 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 [2022-11-25 15:44:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:34,527 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:34,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:37,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:44:37,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:37,529 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-25 15:44:37,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:37,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:37,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800047578] [2022-11-25 15:44:37,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800047578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:37,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:37,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:44:37,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725516744] [2022-11-25 15:44:37,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:37,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:44:37,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:37,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:44:37,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:44:37,532 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:44:38,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:38,922 INFO L93 Difference]: Finished difference Result 747 states and 1082 transitions. [2022-11-25 15:44:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:44:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 278 [2022-11-25 15:44:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:38,927 INFO L225 Difference]: With dead ends: 747 [2022-11-25 15:44:38,927 INFO L226 Difference]: Without dead ends: 421 [2022-11-25 15:44:38,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-25 15:44:38,933 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 152 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:38,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3623 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 15:44:38,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-25 15:44:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2022-11-25 15:44:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-25 15:44:38,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-25 15:44:38,969 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 278 [2022-11-25 15:44:38,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:38,970 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-25 15:44:38,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:44:38,970 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-25 15:44:38,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-25 15:44:38,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:38,972 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:39,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:39,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:39,187 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:39,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:39,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1736794708, now seen corresponding path program 1 times [2022-11-25 15:44:39,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:39,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239196212] [2022-11-25 15:44:39,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:39,190 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 [2022-11-25 15:44:39,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:39,191 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:39,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:41,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 1984 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 15:44:41,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-25 15:44:41,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:41,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:41,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239196212] [2022-11-25 15:44:41,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239196212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:41,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:41,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:44:41,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112355912] [2022-11-25 15:44:41,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:41,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:44:41,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:41,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:44:41,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:44:41,422 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-25 15:44:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:42,173 INFO L93 Difference]: Finished difference Result 719 states and 1031 transitions. [2022-11-25 15:44:42,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:44:42,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 250 [2022-11-25 15:44:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:42,177 INFO L225 Difference]: With dead ends: 719 [2022-11-25 15:44:42,178 INFO L226 Difference]: Without dead ends: 420 [2022-11-25 15:44:42,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:44:42,181 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 122 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:42,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 2864 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 15:44:42,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-25 15:44:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 415. [2022-11-25 15:44:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 265 states have (on average 1.2226415094339622) internal successors, (324), 269 states have internal predecessors, (324), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-25 15:44:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 591 transitions. [2022-11-25 15:44:42,225 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 591 transitions. Word has length 250 [2022-11-25 15:44:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:42,226 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 591 transitions. [2022-11-25 15:44:42,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-25 15:44:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 591 transitions. [2022-11-25 15:44:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-25 15:44:42,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:42,229 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:42,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:42,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:42,451 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:42,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash 548653344, now seen corresponding path program 1 times [2022-11-25 15:44:42,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:42,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638918049] [2022-11-25 15:44:42,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:42,454 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 [2022-11-25 15:44:42,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:42,455 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:42,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:44,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:44:44,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-25 15:44:45,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:45,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:45,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638918049] [2022-11-25 15:44:45,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638918049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:45,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:45,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 15:44:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645923048] [2022-11-25 15:44:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 15:44:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 15:44:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:44:45,204 INFO L87 Difference]: Start difference. First operand 415 states and 591 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:44:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:46,494 INFO L93 Difference]: Finished difference Result 724 states and 1038 transitions. [2022-11-25 15:44:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:44:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 273 [2022-11-25 15:44:46,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:46,499 INFO L225 Difference]: With dead ends: 724 [2022-11-25 15:44:46,499 INFO L226 Difference]: Without dead ends: 423 [2022-11-25 15:44:46,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:44:46,502 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 141 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:46,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3236 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 15:44:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-25 15:44:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416. [2022-11-25 15:44:46,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 266 states have (on average 1.2218045112781954) internal successors, (325), 270 states have internal predecessors, (325), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-25 15:44:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 592 transitions. [2022-11-25 15:44:46,536 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 592 transitions. Word has length 273 [2022-11-25 15:44:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:46,537 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 592 transitions. [2022-11-25 15:44:46,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-25 15:44:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 592 transitions. [2022-11-25 15:44:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-25 15:44:46,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:46,540 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:46,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:46,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:46,755 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash 2044143037, now seen corresponding path program 1 times [2022-11-25 15:44:46,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:46,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999581957] [2022-11-25 15:44:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:46,759 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 [2022-11-25 15:44:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:46,760 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:46,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:49,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:44:49,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-25 15:44:49,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:49,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:49,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999581957] [2022-11-25 15:44:49,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999581957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:49,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:49,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:44:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270738031] [2022-11-25 15:44:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:49,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:44:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:44:49,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:44:49,898 INFO L87 Difference]: Start difference. First operand 416 states and 592 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-25 15:44:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:51,323 INFO L93 Difference]: Finished difference Result 730 states and 1046 transitions. [2022-11-25 15:44:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:44:51,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 304 [2022-11-25 15:44:51,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:51,328 INFO L225 Difference]: With dead ends: 730 [2022-11-25 15:44:51,328 INFO L226 Difference]: Without dead ends: 433 [2022-11-25 15:44:51,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-25 15:44:51,331 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 116 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:51,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 3700 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 15:44:51,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-25 15:44:51,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 428. [2022-11-25 15:44:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 272 states have (on average 1.2205882352941178) internal successors, (332), 276 states have internal predecessors, (332), 123 states have call successors, (123), 27 states have call predecessors, (123), 31 states have return successors, (154), 124 states have call predecessors, (154), 121 states have call successors, (154) [2022-11-25 15:44:51,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 609 transitions. [2022-11-25 15:44:51,370 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 609 transitions. Word has length 304 [2022-11-25 15:44:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:51,371 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 609 transitions. [2022-11-25 15:44:51,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-25 15:44:51,372 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 609 transitions. [2022-11-25 15:44:51,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-25 15:44:51,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:51,375 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:51,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:51,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:51,591 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:51,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:51,591 INFO L85 PathProgramCache]: Analyzing trace with hash 369354797, now seen corresponding path program 1 times [2022-11-25 15:44:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:51,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705106647] [2022-11-25 15:44:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:51,594 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 [2022-11-25 15:44:51,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:51,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:51,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:44:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:44:54,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 15:44:54,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:44:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-25 15:44:54,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:44:54,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:44:54,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705106647] [2022-11-25 15:44:54,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705106647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:44:54,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:44:54,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:44:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406472482] [2022-11-25 15:44:54,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:44:54,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:44:54,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:44:54,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:44:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:44:54,728 INFO L87 Difference]: Start difference. First operand 428 states and 609 transitions. Second operand has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-25 15:44:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:44:56,991 INFO L93 Difference]: Finished difference Result 793 states and 1140 transitions. [2022-11-25 15:44:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 15:44:56,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 310 [2022-11-25 15:44:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:44:56,995 INFO L225 Difference]: With dead ends: 793 [2022-11-25 15:44:56,996 INFO L226 Difference]: Without dead ends: 452 [2022-11-25 15:44:56,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 15:44:56,998 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 201 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:44:56,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 4289 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 15:44:57,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-25 15:44:57,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 406. [2022-11-25 15:44:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 252 states have (on average 1.2142857142857142) internal successors, (306), 256 states have internal predecessors, (306), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-25 15:44:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 575 transitions. [2022-11-25 15:44:57,031 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 575 transitions. Word has length 310 [2022-11-25 15:44:57,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:44:57,032 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 575 transitions. [2022-11-25 15:44:57,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-25 15:44:57,032 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 575 transitions. [2022-11-25 15:44:57,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-25 15:44:57,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:44:57,035 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:44:57,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:44:57,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:44:57,259 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:44:57,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:44:57,260 INFO L85 PathProgramCache]: Analyzing trace with hash 433494193, now seen corresponding path program 1 times [2022-11-25 15:44:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:44:57,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735732483] [2022-11-25 15:44:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:44:57,262 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 [2022-11-25 15:44:57,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:44:57,263 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:44:57,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:45:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:00,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:45:00,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-25 15:45:00,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:00,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:00,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735732483] [2022-11-25 15:45:00,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735732483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:00,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:00,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:45:00,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810481648] [2022-11-25 15:45:00,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:00,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:45:00,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:00,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:45:00,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:45:00,813 INFO L87 Difference]: Start difference. First operand 406 states and 575 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 15:45:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:01,154 INFO L93 Difference]: Finished difference Result 744 states and 1076 transitions. [2022-11-25 15:45:01,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:45:01,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 340 [2022-11-25 15:45:01,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:01,158 INFO L225 Difference]: With dead ends: 744 [2022-11-25 15:45:01,159 INFO L226 Difference]: Without dead ends: 444 [2022-11-25 15:45:01,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:45:01,161 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 59 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:01,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2463 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:45:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-25 15:45:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 407. [2022-11-25 15:45:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 257 states have internal predecessors, (307), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-25 15:45:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 576 transitions. [2022-11-25 15:45:01,198 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 576 transitions. Word has length 340 [2022-11-25 15:45:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:01,199 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 576 transitions. [2022-11-25 15:45:01,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-25 15:45:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 576 transitions. [2022-11-25 15:45:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-25 15:45:01,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:01,202 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:01,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:01,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:01,423 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:01,424 INFO L85 PathProgramCache]: Analyzing trace with hash 714609585, now seen corresponding path program 1 times [2022-11-25 15:45:01,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962364417] [2022-11-25 15:45:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:01,427 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 [2022-11-25 15:45:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:01,429 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:01,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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 [2022-11-25 15:45:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:08,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 15:45:08,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:09,376 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 15:45:09,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2022-11-25 15:45:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-25 15:45:09,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:09,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:09,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962364417] [2022-11-25 15:45:09,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962364417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:09,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:09,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 15:45:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831012487] [2022-11-25 15:45:09,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:09,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:45:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:09,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:45:09,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:45:09,586 INFO L87 Difference]: Start difference. First operand 407 states and 576 transitions. Second operand has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 15:45:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:17,681 INFO L93 Difference]: Finished difference Result 744 states and 1067 transitions. [2022-11-25 15:45:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 15:45:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 334 [2022-11-25 15:45:17,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:17,688 INFO L225 Difference]: With dead ends: 744 [2022-11-25 15:45:17,688 INFO L226 Difference]: Without dead ends: 412 [2022-11-25 15:45:17,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:45:17,690 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 5 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:17,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2851 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-25 15:45:17,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-11-25 15:45:17,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2022-11-25 15:45:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 255 states have (on average 1.2117647058823529) internal successors, (309), 259 states have internal predecessors, (309), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-25 15:45:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 578 transitions. [2022-11-25 15:45:17,736 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 578 transitions. Word has length 334 [2022-11-25 15:45:17,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:17,737 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 578 transitions. [2022-11-25 15:45:17,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-25 15:45:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 578 transitions. [2022-11-25 15:45:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-25 15:45:17,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:17,741 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:17,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:17,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:17,949 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:17,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:17,950 INFO L85 PathProgramCache]: Analyzing trace with hash -427109524, now seen corresponding path program 1 times [2022-11-25 15:45:17,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:17,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430869328] [2022-11-25 15:45:17,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:17,952 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 [2022-11-25 15:45:17,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:17,953 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:17,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-25 15:45:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:20,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 2295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:45:20,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-25 15:45:20,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:20,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430869328] [2022-11-25 15:45:20,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430869328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:20,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:20,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:45:20,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507295122] [2022-11-25 15:45:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:20,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:45:20,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:20,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:45:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:45:20,371 INFO L87 Difference]: Start difference. First operand 409 states and 578 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 15:45:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:20,502 INFO L93 Difference]: Finished difference Result 777 states and 1134 transitions. [2022-11-25 15:45:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:45:20,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 309 [2022-11-25 15:45:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:20,507 INFO L225 Difference]: With dead ends: 777 [2022-11-25 15:45:20,508 INFO L226 Difference]: Without dead ends: 414 [2022-11-25 15:45:20,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:45:20,511 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 7 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:20,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1388 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:45:20,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-25 15:45:20,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2022-11-25 15:45:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 256 states have (on average 1.2109375) internal successors, (310), 260 states have internal predecessors, (310), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-25 15:45:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 579 transitions. [2022-11-25 15:45:20,556 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 579 transitions. Word has length 309 [2022-11-25 15:45:20,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:20,557 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 579 transitions. [2022-11-25 15:45:20,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 15:45:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 579 transitions. [2022-11-25 15:45:20,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-25 15:45:20,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:20,561 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:20,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:20,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:20,787 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:20,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:20,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1610843179, now seen corresponding path program 1 times [2022-11-25 15:45:20,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:20,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495319668] [2022-11-25 15:45:20,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:20,792 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 [2022-11-25 15:45:20,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:20,795 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:20,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-25 15:45:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:23,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:45:23,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-11-25 15:45:23,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:23,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:23,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495319668] [2022-11-25 15:45:23,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495319668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:23,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:23,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 15:45:23,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047154426] [2022-11-25 15:45:23,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:23,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 15:45:23,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 15:45:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:45:23,393 INFO L87 Difference]: Start difference. First operand 410 states and 579 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 15:45:24,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:24,375 INFO L93 Difference]: Finished difference Result 785 states and 1127 transitions. [2022-11-25 15:45:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:45:24,376 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 309 [2022-11-25 15:45:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:24,380 INFO L225 Difference]: With dead ends: 785 [2022-11-25 15:45:24,380 INFO L226 Difference]: Without dead ends: 424 [2022-11-25 15:45:24,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 15:45:24,384 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 5 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:24,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3954 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 15:45:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-25 15:45:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 417. [2022-11-25 15:45:24,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 261 states have (on average 1.206896551724138) internal successors, (315), 266 states have internal predecessors, (315), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-25 15:45:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 597 transitions. [2022-11-25 15:45:24,432 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 597 transitions. Word has length 309 [2022-11-25 15:45:24,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:24,432 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 597 transitions. [2022-11-25 15:45:24,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 15:45:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 597 transitions. [2022-11-25 15:45:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-11-25 15:45:24,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:24,436 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:24,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:24,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:24,659 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:24,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 315766778, now seen corresponding path program 1 times [2022-11-25 15:45:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:24,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234789983] [2022-11-25 15:45:24,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:24,664 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 [2022-11-25 15:45:24,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:24,665 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:24,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-25 15:45:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:27,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2523 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 15:45:27,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 356 proven. 1 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-25 15:45:27,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:45:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-25 15:45:28,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:28,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234789983] [2022-11-25 15:45:28,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234789983] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:45:28,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:45:28,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 15:45:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337313135] [2022-11-25 15:45:28,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:45:28,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 15:45:28,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:28,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 15:45:28,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:45:28,147 INFO L87 Difference]: Start difference. First operand 417 states and 597 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 15:45:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:28,655 INFO L93 Difference]: Finished difference Result 806 states and 1198 transitions. [2022-11-25 15:45:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:45:28,656 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 342 [2022-11-25 15:45:28,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:28,661 INFO L225 Difference]: With dead ends: 806 [2022-11-25 15:45:28,661 INFO L226 Difference]: Without dead ends: 432 [2022-11-25 15:45:28,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:45:28,666 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 25 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1411 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:28,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1411 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 15:45:28,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-25 15:45:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2022-11-25 15:45:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 270 states have (on average 1.211111111111111) internal successors, (327), 275 states have internal predecessors, (327), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-25 15:45:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 609 transitions. [2022-11-25 15:45:28,716 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 609 transitions. Word has length 342 [2022-11-25 15:45:28,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:28,717 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 609 transitions. [2022-11-25 15:45:28,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-25 15:45:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 609 transitions. [2022-11-25 15:45:28,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-25 15:45:28,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:28,749 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:28,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:28,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:28,950 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:28,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1031369426, now seen corresponding path program 1 times [2022-11-25 15:45:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:28,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018588617] [2022-11-25 15:45:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:28,953 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 [2022-11-25 15:45:28,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:28,954 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:28,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-25 15:45:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:36,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 2539 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-25 15:45:36,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:38,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 15:45:38,060 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 [2022-11-25 15:45:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-11-25 15:45:38,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:38,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:38,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018588617] [2022-11-25 15:45:38,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018588617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:38,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:38,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 15:45:38,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558347304] [2022-11-25 15:45:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:38,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 15:45:38,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:38,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 15:45:38,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-25 15:45:38,246 INFO L87 Difference]: Start difference. First operand 426 states and 609 transitions. Second operand has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-25 15:45:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:45,691 INFO L93 Difference]: Finished difference Result 876 states and 1327 transitions. [2022-11-25 15:45:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 15:45:45,694 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 348 [2022-11-25 15:45:45,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:45,698 INFO L225 Difference]: With dead ends: 876 [2022-11-25 15:45:45,698 INFO L226 Difference]: Without dead ends: 486 [2022-11-25 15:45:45,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-25 15:45:45,701 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 114 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 4128 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:45,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 4128 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-25 15:45:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-25 15:45:45,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 437. [2022-11-25 15:45:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 280 states have (on average 1.2107142857142856) internal successors, (339), 284 states have internal predecessors, (339), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-25 15:45:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 634 transitions. [2022-11-25 15:45:45,747 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 634 transitions. Word has length 348 [2022-11-25 15:45:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:45,747 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 634 transitions. [2022-11-25 15:45:45,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-25 15:45:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 634 transitions. [2022-11-25 15:45:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-25 15:45:45,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:45,751 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:45,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:45,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:45,971 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:45,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:45,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1408639060, now seen corresponding path program 1 times [2022-11-25 15:45:45,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:45,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010561826] [2022-11-25 15:45:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:45,974 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 [2022-11-25 15:45:45,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:45,975 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:45,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-25 15:45:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:48,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:45:48,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-11-25 15:45:48,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:48,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:48,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010561826] [2022-11-25 15:45:48,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010561826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:48,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:48,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:45:48,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222861596] [2022-11-25 15:45:48,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:48,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:45:48,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:48,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:45:48,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:45:48,127 INFO L87 Difference]: Start difference. First operand 437 states and 634 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:48,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:48,260 INFO L93 Difference]: Finished difference Result 858 states and 1281 transitions. [2022-11-25 15:45:48,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:45:48,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 318 [2022-11-25 15:45:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:48,266 INFO L225 Difference]: With dead ends: 858 [2022-11-25 15:45:48,266 INFO L226 Difference]: Without dead ends: 462 [2022-11-25 15:45:48,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:45:48,268 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 8 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:48,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1930 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:45:48,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-25 15:45:48,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 445. [2022-11-25 15:45:48,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2048611111111112) internal successors, (347), 292 states have internal predecessors, (347), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-25 15:45:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 642 transitions. [2022-11-25 15:45:48,312 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 642 transitions. Word has length 318 [2022-11-25 15:45:48,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:48,313 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 642 transitions. [2022-11-25 15:45:48,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 642 transitions. [2022-11-25 15:45:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-25 15:45:48,316 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:48,317 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:48,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:48,531 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:48,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:48,532 INFO L85 PathProgramCache]: Analyzing trace with hash 55827308, now seen corresponding path program 1 times [2022-11-25 15:45:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:48,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59670790] [2022-11-25 15:45:48,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:48,535 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 [2022-11-25 15:45:48,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:48,536 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:48,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-25 15:45:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:50,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2309 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:45:50,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-25 15:45:50,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:50,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:50,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59670790] [2022-11-25 15:45:50,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59670790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:50,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:50,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:45:50,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639789274] [2022-11-25 15:45:50,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:50,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:45:50,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:50,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:45:50,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:45:50,741 INFO L87 Difference]: Start difference. First operand 445 states and 642 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:50,853 INFO L93 Difference]: Finished difference Result 854 states and 1297 transitions. [2022-11-25 15:45:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:45:50,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 318 [2022-11-25 15:45:50,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:50,860 INFO L225 Difference]: With dead ends: 854 [2022-11-25 15:45:50,860 INFO L226 Difference]: Without dead ends: 445 [2022-11-25 15:45:50,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:45:50,864 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 7 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1405 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 [2022-11-25 15:45:50,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 15:45:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-25 15:45:50,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-25 15:45:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2013888888888888) internal successors, (346), 292 states have internal predecessors, (346), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-25 15:45:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 641 transitions. [2022-11-25 15:45:50,922 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 641 transitions. Word has length 318 [2022-11-25 15:45:50,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:50,922 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 641 transitions. [2022-11-25 15:45:50,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:50,923 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 641 transitions. [2022-11-25 15:45:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-25 15:45:50,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:50,926 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:50,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:51,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:51,151 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:51,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1031890635, now seen corresponding path program 1 times [2022-11-25 15:45:51,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:51,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686828646] [2022-11-25 15:45:51,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:51,154 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 [2022-11-25 15:45:51,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:51,155 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:51,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-25 15:45:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:45:53,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 15:45:53,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:45:53,751 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2022-11-25 15:45:53,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:45:53,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:45:53,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686828646] [2022-11-25 15:45:53,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686828646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:45:53,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:45:53,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:45:53,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261693197] [2022-11-25 15:45:53,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:45:53,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:45:53,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:45:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:45:53,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:45:53,755 INFO L87 Difference]: Start difference. First operand 445 states and 641 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:45:57,311 INFO L93 Difference]: Finished difference Result 854 states and 1295 transitions. [2022-11-25 15:45:57,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 15:45:57,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 337 [2022-11-25 15:45:57,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:45:57,317 INFO L225 Difference]: With dead ends: 854 [2022-11-25 15:45:57,317 INFO L226 Difference]: Without dead ends: 445 [2022-11-25 15:45:57,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:45:57,320 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 10 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:45:57,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1804 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-25 15:45:57,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-25 15:45:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-25 15:45:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.1979166666666667) internal successors, (345), 292 states have internal predecessors, (345), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-25 15:45:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 640 transitions. [2022-11-25 15:45:57,361 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 640 transitions. Word has length 337 [2022-11-25 15:45:57,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:45:57,361 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 640 transitions. [2022-11-25 15:45:57,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 15:45:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 640 transitions. [2022-11-25 15:45:57,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-25 15:45:57,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:45:57,365 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:45:57,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-25 15:45:57,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:45:57,587 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:45:57,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:45:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1906927256, now seen corresponding path program 1 times [2022-11-25 15:45:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:45:57,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333993087] [2022-11-25 15:45:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:45:57,590 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 [2022-11-25 15:45:57,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:45:57,591 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:45:57,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-25 15:46:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:46:06,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-25 15:46:06,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:46:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 330 proven. 3 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-25 15:46:07,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:46:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-11-25 15:46:09,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:46:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333993087] [2022-11-25 15:46:09,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333993087] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:46:09,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:46:09,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 20 [2022-11-25 15:46:09,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035128752] [2022-11-25 15:46:09,919 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:46:09,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-25 15:46:09,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:46:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-25 15:46:09,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-11-25 15:46:09,922 INFO L87 Difference]: Start difference. First operand 445 states and 640 transitions. Second operand has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-25 15:46:19,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:46:19,441 INFO L93 Difference]: Finished difference Result 771 states and 1117 transitions. [2022-11-25 15:46:19,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 15:46:19,445 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) Word has length 354 [2022-11-25 15:46:19,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:46:19,449 INFO L225 Difference]: With dead ends: 771 [2022-11-25 15:46:19,449 INFO L226 Difference]: Without dead ends: 450 [2022-11-25 15:46:19,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-25 15:46:19,452 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 160 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:46:19,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 4054 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-25 15:46:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-11-25 15:46:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 445. [2022-11-25 15:46:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.1944444444444444) internal successors, (344), 292 states have internal predecessors, (344), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-25 15:46:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 639 transitions. [2022-11-25 15:46:19,508 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 639 transitions. Word has length 354 [2022-11-25 15:46:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:46:19,509 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 639 transitions. [2022-11-25 15:46:19,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-25 15:46:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 639 transitions. [2022-11-25 15:46:19,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-25 15:46:19,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:46:19,512 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:46:19,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-25 15:46:19,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:46:19,735 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:46:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:19,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1988170829, now seen corresponding path program 1 times [2022-11-25 15:46:19,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:46:19,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655663095] [2022-11-25 15:46:19,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:46:19,738 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 [2022-11-25 15:46:19,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:46:19,739 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:46:19,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-25 15:46:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:46:22,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 15:46:22,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:46:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-25 15:46:23,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:46:23,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:46:23,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655663095] [2022-11-25 15:46:23,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655663095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:46:23,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:46:23,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 15:46:23,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041729719] [2022-11-25 15:46:23,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:46:23,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 15:46:23,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:46:23,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 15:46:23,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-25 15:46:23,263 INFO L87 Difference]: Start difference. First operand 445 states and 639 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 15:46:25,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:46:25,435 INFO L93 Difference]: Finished difference Result 806 states and 1164 transitions. [2022-11-25 15:46:25,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 15:46:25,436 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) Word has length 337 [2022-11-25 15:46:25,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:46:25,441 INFO L225 Difference]: With dead ends: 806 [2022-11-25 15:46:25,441 INFO L226 Difference]: Without dead ends: 478 [2022-11-25 15:46:25,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:46:25,444 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 191 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:46:25,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3897 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 15:46:25,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-25 15:46:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 468. [2022-11-25 15:46:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 310 states have (on average 1.196774193548387) internal successors, (371), 313 states have internal predecessors, (371), 123 states have call successors, (123), 27 states have call predecessors, (123), 33 states have return successors, (175), 127 states have call predecessors, (175), 121 states have call successors, (175) [2022-11-25 15:46:25,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 669 transitions. [2022-11-25 15:46:25,489 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 669 transitions. Word has length 337 [2022-11-25 15:46:25,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:46:25,490 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 669 transitions. [2022-11-25 15:46:25,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-25 15:46:25,490 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 669 transitions. [2022-11-25 15:46:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-11-25 15:46:25,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:46:25,494 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:46:25,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-25 15:46:25,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:46:25,712 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:46:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1199233577, now seen corresponding path program 2 times [2022-11-25 15:46:25,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:46:25,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751454277] [2022-11-25 15:46:25,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 15:46:25,716 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 [2022-11-25 15:46:25,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:46:25,725 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:46:25,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-25 15:46:29,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 15:46:29,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 15:46:29,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 2442 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 15:46:29,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:46:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 360 proven. 3 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-25 15:46:30,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:46:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-11-25 15:46:31,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:46:31,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751454277] [2022-11-25 15:46:31,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751454277] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 15:46:31,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 15:46:31,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-25 15:46:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369888141] [2022-11-25 15:46:31,239 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 15:46:31,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 15:46:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:46:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 15:46:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:46:31,241 INFO L87 Difference]: Start difference. First operand 468 states and 669 transitions. Second operand has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-25 15:46:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:46:33,260 INFO L93 Difference]: Finished difference Result 850 states and 1219 transitions. [2022-11-25 15:46:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 15:46:33,261 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) Word has length 339 [2022-11-25 15:46:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:46:33,264 INFO L225 Difference]: With dead ends: 850 [2022-11-25 15:46:33,264 INFO L226 Difference]: Without dead ends: 499 [2022-11-25 15:46:33,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-25 15:46:33,266 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 253 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:46:33,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 4363 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 15:46:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-11-25 15:46:33,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 442. [2022-11-25 15:46:33,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 286 states have (on average 1.1958041958041958) internal successors, (342), 289 states have internal predecessors, (342), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (169), 125 states have call predecessors, (169), 120 states have call successors, (169) [2022-11-25 15:46:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 633 transitions. [2022-11-25 15:46:33,305 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 633 transitions. Word has length 339 [2022-11-25 15:46:33,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:46:33,306 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 633 transitions. [2022-11-25 15:46:33,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.357142857142858) internal successors, (145), 14 states have internal predecessors, (145), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-25 15:46:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 633 transitions. [2022-11-25 15:46:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-25 15:46:33,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:46:33,310 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:46:33,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-25 15:46:33,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:46:33,523 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:46:33,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:46:33,523 INFO L85 PathProgramCache]: Analyzing trace with hash -646010006, now seen corresponding path program 1 times [2022-11-25 15:46:33,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:46:33,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059579050] [2022-11-25 15:46:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:46:33,527 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 [2022-11-25 15:46:33,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:46:33,528 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -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) [2022-11-25 15:46:33,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-25 15:51:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:57,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 71 conjunts are in the unsatisfiable core [2022-11-25 15:51:57,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:51:58,280 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (_ BitVec 64)) (v_ArrVal_5635 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_5635) |c_#memory_$Pointer$.base|)) is different from true [2022-11-25 15:51:58,411 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-25 15:51:58,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-25 15:51:58,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 15:51:59,981 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5639 (_ BitVec 64)) (v_ArrVal_5649 (_ BitVec 64)) (v_ArrVal_5648 (_ BitVec 64)) (v_ArrVal_5637 (_ BitVec 64)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (_ BitVec 64)) (v_ArrVal_5636 (_ BitVec 64)) (v_ArrVal_5646 (_ BitVec 64)) (v_ArrVal_5645 (_ BitVec 64)) (v_ArrVal_5644 (_ BitVec 64)) (v_ArrVal_5643 (_ BitVec 64)) (v_ArrVal_5653 (_ BitVec 64)) (v_ArrVal_5642 (_ BitVec 64)) (v_ArrVal_5652 (_ BitVec 64)) (v_ArrVal_5641 (_ BitVec 64)) (v_ArrVal_5640 (_ BitVec 64)) (v_ArrVal_5651 (_ BitVec 64)) (v_ArrVal_5650 (_ BitVec 64))) (let ((.cse0 (bvadd (_ bv1 64) |c_aws_mul_size_checked_#in~r#1.offset|)) (.cse1 (bvadd (_ bv2 64) |c_aws_mul_size_checked_#in~r#1.offset|)) (.cse2 (bvadd (_ bv3 64) |c_aws_mul_size_checked_#in~r#1.offset|)) (.cse3 (bvadd (_ bv4 64) |c_aws_mul_size_checked_#in~r#1.offset|)) (.cse4 (bvadd |c_aws_mul_size_checked_#in~r#1.offset| (_ bv5 64))) (.cse5 (bvadd (_ bv6 64) |c_aws_mul_size_checked_#in~r#1.offset|)) (.cse6 (bvadd (_ bv7 64) |c_aws_mul_size_checked_#in~r#1.offset|))) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5653) .cse0 v_ArrVal_5652) .cse1 v_ArrVal_5650) .cse2 v_ArrVal_5648) .cse3 v_ArrVal_5645) .cse4 v_ArrVal_5643) .cse5 v_ArrVal_5641) .cse6 v_ArrVal_5640)) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (store (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5651) .cse0 v_ArrVal_5649) .cse1 v_ArrVal_5646) .cse2 v_ArrVal_5644) .cse3 v_ArrVal_5642) .cse4 v_ArrVal_5639) .cse5 v_ArrVal_5637) .cse6 v_ArrVal_5636)) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-25 15:52:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 407 proven. 2 refuted. 0 times theorem prover too weak. 409 trivial. 17 not checked. [2022-11-25 15:52:21,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 15:52:29,253 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5739 (_ BitVec 64)) (v_ArrVal_5738 (_ BitVec 64)) (v_ArrVal_5749 (_ BitVec 64)) (v_ArrVal_5748 (_ BitVec 64)) (v_ArrVal_5737 (_ BitVec 64)) (v_ArrVal_5747 (_ BitVec 64)) (v_ArrVal_5736 (_ BitVec 64)) (v_ArrVal_5746 (_ BitVec 64)) (v_ArrVal_5745 (_ BitVec 64)) (v_ArrVal_5744 (_ BitVec 64)) (v_ArrVal_5743 (_ BitVec 64)) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_222| (_ BitVec 64)) (v_ArrVal_5742 (_ BitVec 64)) (v_ArrVal_5741 (_ BitVec 64)) (v_ArrVal_5751 (_ BitVec 64)) (v_ArrVal_5740 (_ BitVec 64)) (v_ArrVal_5750 (_ BitVec 64))) (let ((.cse0 (bvadd (_ bv32 64) c_aws_array_list_length_~list.offset))) (or (not (= (_ bv0 64) (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_222| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_222|) (_ bv0 64) v_ArrVal_5738) (_ bv1 64) v_ArrVal_5749) (_ bv2 64) v_ArrVal_5736) (_ bv3 64) v_ArrVal_5745) (_ bv4 64) v_ArrVal_5744) (_ bv5 64) v_ArrVal_5740) (_ bv6 64) v_ArrVal_5743) (_ bv7 64) v_ArrVal_5737)) c_aws_array_list_length_~list.base) .cse0))) (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_222| (store (store (store (store (store (store (store (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_222|) (_ bv0 64) v_ArrVal_5742) (_ bv1 64) v_ArrVal_5746) (_ bv2 64) v_ArrVal_5750) (_ bv3 64) v_ArrVal_5739) (_ bv4 64) v_ArrVal_5747) (_ bv5 64) v_ArrVal_5748) (_ bv6 64) v_ArrVal_5751) (_ bv7 64) v_ArrVal_5741)) c_aws_array_list_length_~list.base) .cse0) (_ bv0 64)))))) is different from false [2022-11-25 15:52:29,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:52:29,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059579050] [2022-11-25 15:52:29,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059579050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:52:29,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1847954127] [2022-11-25 15:52:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:29,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 15:52:29,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/cvc4 [2022-11-25 15:52:29,325 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 15:52:29,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5749e23d-1058-430d-aa38-8e13bab36578/bin/uautomizer-ZsLfNo2U6R/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process