./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:54:17,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:54:17,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 21:54:17,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:54:17,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:54:17,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:54:17,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:54:17,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:54:17,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:54:17,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:54:17,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:54:17,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:54:17,282 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:54:17,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:54:17,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:54:17,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:54:17,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:54:17,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:54:17,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:54:17,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:54:17,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:54:17,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:54:17,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:54:17,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:54:17,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:54:17,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:17,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:54:17,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:54:17,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:54:17,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:54:17,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:54:17,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:54:17,296 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:54:17,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:54:17,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:54:17,297 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:54:17,297 INFO L153 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_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f [2023-11-06 21:54:17,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:54:17,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:54:17,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:54:17,652 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:54:17,653 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:54:17,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:54:20,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:54:21,692 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:54:21,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:54:21,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/3db652023/692a97f7919345a2914dfe49f1f03118/FLAGba0892246 [2023-11-06 21:54:21,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/3db652023/692a97f7919345a2914dfe49f1f03118 [2023-11-06 21:54:21,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:54:21,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:54:21,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:21,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:54:21,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:54:21,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:21" (1/1) ... [2023-11-06 21:54:21,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe85a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:21, skipping insertion in model container [2023-11-06 21:54:21,810 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:21" (1/1) ... [2023-11-06 21:54:21,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:54:22,364 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-06 21:54:22,374 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-06 21:54:23,727 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,732 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,733 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,736 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,739 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,774 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,776 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,789 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,798 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,801 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,802 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,806 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:23,807 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:24,479 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 21:54:24,481 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 21:54:24,483 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 21:54:24,484 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 21:54:24,526 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 21:54:24,528 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 21:54:24,530 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 21:54:24,531 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 21:54:24,534 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 21:54:24,542 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 21:54:24,903 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:24,923 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,014 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,015 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,016 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,017 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,017 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,018 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,019 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,020 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,021 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,022 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,023 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,024 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,028 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,029 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,029 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,030 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,038 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,039 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,055 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,057 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,059 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:25,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:54:25,177 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-06 21:54:25,179 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-06 21:54:25,262 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,263 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,263 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,264 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,265 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,280 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,281 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,283 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,284 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,286 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,288 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,289 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,289 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,365 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 21:54:25,367 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 21:54:25,369 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 21:54:25,370 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 21:54:25,372 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 21:54:25,372 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 21:54:25,374 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 21:54:25,375 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 21:54:25,376 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 21:54:25,376 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 21:54:25,440 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,446 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-06 21:54:25,493 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,495 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,495 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,497 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,499 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,500 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,501 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,501 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,502 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,505 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,505 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,514 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,515 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,516 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:54:25,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:25,763 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,765 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,765 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,765 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,765 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,766 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,766 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,766 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,767 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,767 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,769 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,770 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,770 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,770 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,771 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:25,780 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:54:25,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25 WrapperNode [2023-11-06 21:54:25,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:25,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:25,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:54:25,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:54:25,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:25,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,096 INFO L138 Inliner]: procedures = 696, calls = 1881, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1147 [2023-11-06 21:54:26,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:26,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:54:26,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:54:26,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:54:26,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:54:26,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:54:26,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:54:26,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:54:26,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (1/1) ... [2023-11-06 21:54:26,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:26,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:26,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:54:26,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:54:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-06 21:54:26,367 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-06 21:54:26,367 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-06 21:54:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-06 21:54:26,371 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-06 21:54:26,371 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-06 21:54:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:54:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 21:54:26,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 21:54:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 21:54:26,372 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 21:54:26,372 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 21:54:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 21:54:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-06 21:54:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-06 21:54:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-06 21:54:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-06 21:54:26,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:54:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 21:54:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 21:54:26,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 21:54:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 21:54:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:54:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:54:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:54:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-06 21:54:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-06 21:54:26,375 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 21:54:26,376 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 21:54:26,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:54:26,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:54:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 21:54:26,377 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 21:54:26,377 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 21:54:26,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 21:54:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-06 21:54:26,378 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-06 21:54:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-06 21:54:26,378 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-06 21:54:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-06 21:54:26,379 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-06 21:54:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 21:54:26,380 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 21:54:26,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:54:26,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:54:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:54:26,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:54:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 21:54:26,385 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 21:54:26,385 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-06 21:54:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-06 21:54:26,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-06 21:54:26,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-06 21:54:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:54:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-06 21:54:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-06 21:54:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:54:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:54:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2023-11-06 21:54:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2023-11-06 21:54:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-06 21:54:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-06 21:54:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 21:54:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 21:54:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 21:54:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 21:54:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-06 21:54:26,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-06 21:54:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:54:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 21:54:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 21:54:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-06 21:54:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-06 21:54:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 21:54:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 21:54:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 21:54:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 21:54:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:54:27,008 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:54:27,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:54:28,794 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:54:28,820 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:54:28,820 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 21:54:28,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:54:28 BoogieIcfgContainer [2023-11-06 21:54:28,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:54:28,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:54:28,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:54:28,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:54:28,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:54:21" (1/3) ... [2023-11-06 21:54:28,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68462f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:54:28, skipping insertion in model container [2023-11-06 21:54:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:25" (2/3) ... [2023-11-06 21:54:28,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68462f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:54:28, skipping insertion in model container [2023-11-06 21:54:28,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:54:28" (3/3) ... [2023-11-06 21:54:28,837 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:54:28,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:54:28,861 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 21:54:28,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:54:28,950 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;@d265e1c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:54:28,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 21:54:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 534 states, 306 states have (on average 1.2450980392156863) internal successors, (381), 309 states have internal predecessors, (381), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2023-11-06 21:54:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 21:54:29,006 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:29,007 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:29,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:29,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash 385738447, now seen corresponding path program 1 times [2023-11-06 21:54:29,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:29,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993793641] [2023-11-06 21:54:29,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:29,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:54:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:54:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 21:54:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 21:54:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 21:54:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 21:54:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 21:54:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 21:54:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 21:54:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 21:54:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 21:54:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 21:54:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:54:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 21:54:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:54:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-06 21:54:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 21:54:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 21:54:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 21:54:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-06 21:54:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-06 21:54:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 21:54:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-06 21:54:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 21:54:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 21:54:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-06 21:54:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:31,201 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2023-11-06 21:54:31,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:31,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993793641] [2023-11-06 21:54:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993793641] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:54:31,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157801830] [2023-11-06 21:54:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:31,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:31,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:31,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:31,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:54:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:32,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 2404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:54:32,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:54:32,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157801830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:32,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:54:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-06 21:54:32,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555403505] [2023-11-06 21:54:32,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:32,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:54:32,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:54:32,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:54:32,366 INFO L87 Difference]: Start difference. First operand has 534 states, 306 states have (on average 1.2450980392156863) internal successors, (381), 309 states have internal predecessors, (381), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-06 21:54:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:33,019 INFO L93 Difference]: Finished difference Result 1057 states and 1665 transitions. [2023-11-06 21:54:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:54:33,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 162 [2023-11-06 21:54:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:33,059 INFO L225 Difference]: With dead ends: 1057 [2023-11-06 21:54:33,059 INFO L226 Difference]: Without dead ends: 529 [2023-11-06 21:54:33,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-06 21:54:33,082 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 763 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:33,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2802 Invalid, 200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 21:54:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-11-06 21:54:33,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529. [2023-11-06 21:54:33,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 301 states have (on average 1.2259136212624584) internal successors, (369), 304 states have internal predecessors, (369), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2023-11-06 21:54:33,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 761 transitions. [2023-11-06 21:54:33,221 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 761 transitions. Word has length 162 [2023-11-06 21:54:33,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:33,222 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 761 transitions. [2023-11-06 21:54:33,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-06 21:54:33,223 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 761 transitions. [2023-11-06 21:54:33,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 21:54:33,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:33,231 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:33,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 21:54:33,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:33,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:33,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1280759464, now seen corresponding path program 1 times [2023-11-06 21:54:33,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:33,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902885739] [2023-11-06 21:54:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:33,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:54:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:54:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 21:54:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-06 21:54:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 21:54:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 21:54:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 21:54:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 21:54:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-06 21:54:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 21:54:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 21:54:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 21:54:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 21:54:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:54:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-06 21:54:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 21:54:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 21:54:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 21:54:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 21:54:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-06 21:54:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-06 21:54:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 21:54:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-06 21:54:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-06 21:54:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-06 21:54:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 21:54:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-06 21:54:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-06 21:54:34,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:34,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902885739] [2023-11-06 21:54:34,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902885739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:54:34,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691163583] [2023-11-06 21:54:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:34,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:34,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:34,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:34,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:54:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:35,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 2454 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 21:54:35,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:54:35,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:35,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691163583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:35,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:54:35,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-06 21:54:35,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488940507] [2023-11-06 21:54:35,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:35,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:54:35,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:54:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:54:35,793 INFO L87 Difference]: Start difference. First operand 529 states and 761 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 21:54:36,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:36,749 INFO L93 Difference]: Finished difference Result 1046 states and 1546 transitions. [2023-11-06 21:54:36,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:54:36,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 170 [2023-11-06 21:54:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:36,759 INFO L225 Difference]: With dead ends: 1046 [2023-11-06 21:54:36,760 INFO L226 Difference]: Without dead ends: 550 [2023-11-06 21:54:36,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-11-06 21:54:36,766 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 801 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 3927 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:36,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 3927 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 21:54:36,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-06 21:54:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 548. [2023-11-06 21:54:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 317 states have (on average 1.2334384858044165) internal successors, (391), 320 states have internal predecessors, (391), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:54:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2023-11-06 21:54:36,863 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 170 [2023-11-06 21:54:36,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:36,869 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2023-11-06 21:54:36,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 21:54:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2023-11-06 21:54:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-06 21:54:36,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:36,878 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:36,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:37,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:37,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:37,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:37,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1321450891, now seen corresponding path program 1 times [2023-11-06 21:54:37,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104879568] [2023-11-06 21:54:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:37,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:37,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:37,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772911214] [2023-11-06 21:54:37,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:37,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:37,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:37,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:37,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:54:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:38,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 2595 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 21:54:38,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:38,173 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:54:38,173 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104879568] [2023-11-06 21:54:38,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:38,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772911214] [2023-11-06 21:54:38,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772911214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:38,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:38,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:54:38,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256648718] [2023-11-06 21:54:38,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:38,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:54:38,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:38,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:54:38,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:54:38,178 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 21:54:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:38,732 INFO L93 Difference]: Finished difference Result 1069 states and 1615 transitions. [2023-11-06 21:54:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:54:38,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 185 [2023-11-06 21:54:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:38,741 INFO L225 Difference]: With dead ends: 1069 [2023-11-06 21:54:38,741 INFO L226 Difference]: Without dead ends: 554 [2023-11-06 21:54:38,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:54:38,747 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 778 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:38,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 3450 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 21:54:38,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-06 21:54:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 548. [2023-11-06 21:54:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 317 states have (on average 1.2334384858044165) internal successors, (391), 320 states have internal predecessors, (391), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:54:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2023-11-06 21:54:38,809 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 185 [2023-11-06 21:54:38,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:38,810 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2023-11-06 21:54:38,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 21:54:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2023-11-06 21:54:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-06 21:54:38,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:38,815 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:38,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:39,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:39,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:39,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:39,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1301981539, now seen corresponding path program 1 times [2023-11-06 21:54:39,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:39,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195403739] [2023-11-06 21:54:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:39,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:39,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:39,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578213017] [2023-11-06 21:54:39,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:39,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:39,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:54:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:39,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 2667 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 21:54:39,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-06 21:54:40,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195403739] [2023-11-06 21:54:40,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578213017] [2023-11-06 21:54:40,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578213017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:40,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:40,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:54:40,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003433004] [2023-11-06 21:54:40,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:40,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:54:40,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:54:40,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:54:40,098 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-06 21:54:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:41,147 INFO L93 Difference]: Finished difference Result 1079 states and 1624 transitions. [2023-11-06 21:54:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:54:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 201 [2023-11-06 21:54:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:41,157 INFO L225 Difference]: With dead ends: 1079 [2023-11-06 21:54:41,158 INFO L226 Difference]: Without dead ends: 564 [2023-11-06 21:54:41,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:54:41,168 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 828 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:41,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 4536 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 21:54:41,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-11-06 21:54:41,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 548. [2023-11-06 21:54:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 317 states have (on average 1.2334384858044165) internal successors, (391), 320 states have internal predecessors, (391), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:54:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 819 transitions. [2023-11-06 21:54:41,243 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 819 transitions. Word has length 201 [2023-11-06 21:54:41,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:41,248 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 819 transitions. [2023-11-06 21:54:41,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-06 21:54:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 819 transitions. [2023-11-06 21:54:41,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-06 21:54:41,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:41,255 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:41,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:41,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:41,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:41,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:41,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1532764798, now seen corresponding path program 2 times [2023-11-06 21:54:41,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:41,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596796282] [2023-11-06 21:54:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:41,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:41,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:41,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812964979] [2023-11-06 21:54:41,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:54:41,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:41,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:41,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:41,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:54:42,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:54:42,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:54:42,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 1809 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 21:54:42,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 21:54:42,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:42,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:42,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596796282] [2023-11-06 21:54:42,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:42,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812964979] [2023-11-06 21:54:42,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812964979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:42,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:42,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:54:42,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174871664] [2023-11-06 21:54:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:42,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:54:42,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:42,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:54:42,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:54:42,324 INFO L87 Difference]: Start difference. First operand 548 states and 819 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-06 21:54:42,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:42,469 INFO L93 Difference]: Finished difference Result 556 states and 827 transitions. [2023-11-06 21:54:42,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:54:42,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 216 [2023-11-06 21:54:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:42,476 INFO L225 Difference]: With dead ends: 556 [2023-11-06 21:54:42,477 INFO L226 Difference]: Without dead ends: 554 [2023-11-06 21:54:42,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:54:42,479 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 5 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:42,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3708 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:54:42,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-06 21:54:42,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 553. [2023-11-06 21:54:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 320 states have (on average 1.23125) internal successors, (394), 323 states have internal predecessors, (394), 196 states have call successors, (196), 34 states have call predecessors, (196), 35 states have return successors, (234), 195 states have call predecessors, (234), 194 states have call successors, (234) [2023-11-06 21:54:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 824 transitions. [2023-11-06 21:54:42,535 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 824 transitions. Word has length 216 [2023-11-06 21:54:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:42,536 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 824 transitions. [2023-11-06 21:54:42,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-06 21:54:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 824 transitions. [2023-11-06 21:54:42,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-06 21:54:42,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:42,542 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:42,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:42,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:42,752 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:42,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:42,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1001352591, now seen corresponding path program 3 times [2023-11-06 21:54:42,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:42,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850715326] [2023-11-06 21:54:42,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:42,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:42,914 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:42,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523350434] [2023-11-06 21:54:42,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:54:42,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:42,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:42,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:42,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 21:54:44,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 21:54:44,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:54:44,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 2022 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:54:44,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-06 21:54:44,869 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:54:45,252 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-06 21:54:45,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:45,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850715326] [2023-11-06 21:54:45,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:45,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523350434] [2023-11-06 21:54:45,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523350434] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:54:45,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:54:45,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-06 21:54:45,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546562308] [2023-11-06 21:54:45,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:54:45,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:54:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:54:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:54:45,258 INFO L87 Difference]: Start difference. First operand 553 states and 824 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-06 21:54:46,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:46,034 INFO L93 Difference]: Finished difference Result 1057 states and 1597 transitions. [2023-11-06 21:54:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:54:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2023-11-06 21:54:46,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:46,048 INFO L225 Difference]: With dead ends: 1057 [2023-11-06 21:54:46,048 INFO L226 Difference]: Without dead ends: 561 [2023-11-06 21:54:46,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:54:46,059 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 36 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:46,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3455 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:54:46,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-06 21:54:46,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 558. [2023-11-06 21:54:46,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 323 states have (on average 1.2291021671826625) internal successors, (397), 325 states have internal predecessors, (397), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2023-11-06 21:54:46,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 831 transitions. [2023-11-06 21:54:46,138 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 831 transitions. Word has length 231 [2023-11-06 21:54:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:46,139 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 831 transitions. [2023-11-06 21:54:46,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-06 21:54:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 831 transitions. [2023-11-06 21:54:46,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-06 21:54:46,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:46,145 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:46,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:46,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:46,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:46,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:46,359 INFO L85 PathProgramCache]: Analyzing trace with hash -175812402, now seen corresponding path program 4 times [2023-11-06 21:54:46,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:46,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813708829] [2023-11-06 21:54:46,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:46,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:46,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:46,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537982449] [2023-11-06 21:54:46,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 21:54:46,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:46,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:46,537 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:46,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 21:54:47,016 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 21:54:47,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:54:47,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:54:47,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2023-11-06 21:54:47,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:47,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813708829] [2023-11-06 21:54:47,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:47,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537982449] [2023-11-06 21:54:47,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537982449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:47,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:54:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847681188] [2023-11-06 21:54:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:54:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:54:47,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:54:47,102 INFO L87 Difference]: Start difference. First operand 558 states and 831 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-06 21:54:47,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:47,780 INFO L93 Difference]: Finished difference Result 1170 states and 1765 transitions. [2023-11-06 21:54:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:54:47,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 246 [2023-11-06 21:54:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:47,789 INFO L225 Difference]: With dead ends: 1170 [2023-11-06 21:54:47,789 INFO L226 Difference]: Without dead ends: 663 [2023-11-06 21:54:47,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:54:47,795 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 125 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 5227 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:47,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 5227 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:54:47,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2023-11-06 21:54:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 655. [2023-11-06 21:54:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 389 states have (on average 1.25706940874036) internal successors, (489), 393 states have internal predecessors, (489), 227 states have call successors, (227), 36 states have call predecessors, (227), 37 states have return successors, (279), 225 states have call predecessors, (279), 225 states have call successors, (279) [2023-11-06 21:54:47,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 995 transitions. [2023-11-06 21:54:47,864 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 995 transitions. Word has length 246 [2023-11-06 21:54:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:47,867 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 995 transitions. [2023-11-06 21:54:47,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2023-11-06 21:54:47,867 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 995 transitions. [2023-11-06 21:54:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-06 21:54:47,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:47,874 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:54:47,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:48,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:48,083 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:48,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1721982462, now seen corresponding path program 1 times [2023-11-06 21:54:48,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:48,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825670438] [2023-11-06 21:54:48,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:48,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120395687] [2023-11-06 21:54:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:48,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:48,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 21:54:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:49,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 3281 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 21:54:49,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:49,221 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2023-11-06 21:54:49,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:54:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825670438] [2023-11-06 21:54:49,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:49,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120395687] [2023-11-06 21:54:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120395687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:54:49,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:54:49,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:54:49,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937153165] [2023-11-06 21:54:49,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:54:49,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:54:49,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:54:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:54:49,226 INFO L87 Difference]: Start difference. First operand 655 states and 995 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-06 21:54:49,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:49,910 INFO L93 Difference]: Finished difference Result 1173 states and 1780 transitions. [2023-11-06 21:54:49,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:54:49,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 269 [2023-11-06 21:54:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:49,922 INFO L225 Difference]: With dead ends: 1173 [2023-11-06 21:54:49,922 INFO L226 Difference]: Without dead ends: 563 [2023-11-06 21:54:49,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:54:49,930 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 843 mSDsluCounter, 3887 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:49,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 4561 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:54:49,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2023-11-06 21:54:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 561. [2023-11-06 21:54:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 325 states have (on average 1.2276923076923076) internal successors, (399), 328 states have internal predecessors, (399), 198 states have call successors, (198), 35 states have call predecessors, (198), 36 states have return successors, (240), 197 states have call predecessors, (240), 196 states have call successors, (240) [2023-11-06 21:54:49,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 837 transitions. [2023-11-06 21:54:49,995 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 837 transitions. Word has length 269 [2023-11-06 21:54:49,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:49,996 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 837 transitions. [2023-11-06 21:54:49,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 5 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2023-11-06 21:54:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 837 transitions. [2023-11-06 21:54:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-06 21:54:50,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:50,002 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 21:54:50,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:50,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 21:54:50,218 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:50,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1944131583, now seen corresponding path program 1 times [2023-11-06 21:54:50,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:50,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409633101] [2023-11-06 21:54:50,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:50,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:50,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:50,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506980778] [2023-11-06 21:54:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:50,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:50,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:50,335 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:50,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 21:54:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:54:51,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 3212 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 21:54:51,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 253 proven. 3 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-06 21:54:51,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:54:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2023-11-06 21:54:51,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:54:51,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409633101] [2023-11-06 21:54:51,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:54:51,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506980778] [2023-11-06 21:54:51,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506980778] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:54:51,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:54:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-06 21:54:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842879644] [2023-11-06 21:54:51,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:54:51,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 21:54:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:54:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 21:54:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:54:51,924 INFO L87 Difference]: Start difference. First operand 561 states and 837 transitions. Second operand has 16 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 9 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (52), 5 states have call predecessors, (52), 9 states have call successors, (52) [2023-11-06 21:54:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:54:53,355 INFO L93 Difference]: Finished difference Result 1096 states and 1645 transitions. [2023-11-06 21:54:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:54:53,356 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 9 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (52), 5 states have call predecessors, (52), 9 states have call successors, (52) Word has length 270 [2023-11-06 21:54:53,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:54:53,363 INFO L225 Difference]: With dead ends: 1096 [2023-11-06 21:54:53,363 INFO L226 Difference]: Without dead ends: 580 [2023-11-06 21:54:53,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 525 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2023-11-06 21:54:53,369 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 823 mSDsluCounter, 7555 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 8220 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:54:53,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 8220 Invalid, 1424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [139 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 21:54:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2023-11-06 21:54:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 574. [2023-11-06 21:54:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 337 states have (on average 1.2344213649851632) internal successors, (416), 339 states have internal predecessors, (416), 199 states have call successors, (199), 35 states have call predecessors, (199), 36 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2023-11-06 21:54:53,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 856 transitions. [2023-11-06 21:54:53,418 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 856 transitions. Word has length 270 [2023-11-06 21:54:53,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:54:53,418 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 856 transitions. [2023-11-06 21:54:53,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 9.571428571428571) internal successors, (134), 14 states have internal predecessors, (134), 9 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (52), 5 states have call predecessors, (52), 9 states have call successors, (52) [2023-11-06 21:54:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 856 transitions. [2023-11-06 21:54:53,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-06 21:54:53,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:54:53,425 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-06 21:54:53,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 21:54:53,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-06 21:54:53,638 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:54:53,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:54:53,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1745183786, now seen corresponding path program 2 times [2023-11-06 21:54:53,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:54:53,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889263968] [2023-11-06 21:54:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:54:53,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:54:53,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:54:53,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106217815] [2023-11-06 21:54:53,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:54:53,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:54:53,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:53,853 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:54:53,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 21:54:55,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:54:55,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:54:55,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 3353 conjuncts, 185 conjunts are in the unsatisfiable core [2023-11-06 21:54:55,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:54:57,452 INFO L322 Elim1Store]: treesize reduction 204, result has 50.1 percent of original size [2023-11-06 21:54:57,453 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 52 select indices, 52 select index equivalence classes, 1275 disjoint index pairs (out of 1326 index pairs), introduced 52 new quantified variables, introduced 51 case distinctions, treesize of input 261 treesize of output 361 [2023-11-06 21:55:04,003 WARN L667 sPolynomialRelations]: Constructing 2147483647(two to the power of 51 dual juncts. [2023-11-06 21:55:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889263968] [2023-11-06 21:55:04,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:55:04,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106217815] [2023-11-06 21:55:04,004 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-06 21:55:04,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 21:55:04,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 21:55:04,219 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$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:669) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:541) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) 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:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) 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:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) 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:210) 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) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) [2023-11-06 21:55:04,223 INFO L158 Benchmark]: Toolchain (without parser) took 42427.31ms. Allocated memory was 155.2MB in the beginning and 641.7MB in the end (delta: 486.5MB). Free memory was 100.4MB in the beginning and 457.9MB in the end (delta: -357.5MB). Peak memory consumption was 131.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,223 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 98.8MB in the end (delta: 190.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:55:04,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3982.22ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 99.9MB in the beginning and 104.3MB in the end (delta: -4.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 313.77ms. Allocated memory is still 192.9MB. Free memory was 104.3MB in the beginning and 93.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,226 INFO L158 Benchmark]: Boogie Preprocessor took 166.12ms. Allocated memory is still 192.9MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,226 INFO L158 Benchmark]: RCFGBuilder took 2560.94ms. Allocated memory was 192.9MB in the beginning and 253.8MB in the end (delta: 60.8MB). Free memory was 82.5MB in the beginning and 109.6MB in the end (delta: -27.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,227 INFO L158 Benchmark]: TraceAbstraction took 35392.95ms. Allocated memory was 253.8MB in the beginning and 641.7MB in the end (delta: 388.0MB). Free memory was 108.6MB in the beginning and 457.9MB in the end (delta: -349.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-11-06 21:55:04,229 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 155.2MB. Free memory was 99.0MB in the beginning and 98.8MB in the end (delta: 190.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3982.22ms. Allocated memory was 155.2MB in the beginning and 192.9MB in the end (delta: 37.7MB). Free memory was 99.9MB in the beginning and 104.3MB in the end (delta: -4.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 313.77ms. Allocated memory is still 192.9MB. Free memory was 104.3MB in the beginning and 93.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 166.12ms. Allocated memory is still 192.9MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2560.94ms. Allocated memory was 192.9MB in the beginning and 253.8MB in the end (delta: 60.8MB). Free memory was 82.5MB in the beginning and 109.6MB in the end (delta: -27.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * TraceAbstraction took 35392.95ms. Allocated memory was 253.8MB in the beginning and 641.7MB in the end (delta: 388.0MB). Free memory was 108.6MB in the beginning and 457.9MB in the end (delta: -349.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 7771]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] * 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:669) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-06 21:55:04,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/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_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:55:06,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:55:07,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-06 21:55:07,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:55:07,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:55:07,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:55:07,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:55:07,164 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:55:07,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:55:07,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:55:07,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:55:07,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:55:07,173 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:55:07,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:55:07,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:55:07,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:55:07,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:55:07,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:55:07,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:55:07,179 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:55:07,179 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:55:07,180 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:55:07,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:55:07,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:55:07,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:55:07,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:55:07,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:55:07,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:07,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:55:07,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:55:07,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:55:07,186 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 21:55:07,186 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:55:07,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:55:07,187 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:55:07,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:55:07,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:55:07,188 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 21:55:07,188 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:55:07,189 INFO L153 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_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5898cdbe41b781bfcf4b6658764bb7941a3da7ed2a29e4c15f0b850532a75f [2023-11-06 21:55:07,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:55:07,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:55:07,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:55:07,694 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:55:07,694 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:55:07,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:55:11,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:55:11,809 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:55:11,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:55:11,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/001e04c06/70900fcdf49847dfa92ab65871be096a/FLAGa7b72e5f7 [2023-11-06 21:55:11,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/data/001e04c06/70900fcdf49847dfa92ab65871be096a [2023-11-06 21:55:11,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:55:11,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:55:11,880 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:11,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:55:11,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:55:11,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:11" (1/1) ... [2023-11-06 21:55:11,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d481fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:11, skipping insertion in model container [2023-11-06 21:55:11,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:11" (1/1) ... [2023-11-06 21:55:12,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:55:12,343 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-06 21:55:12,352 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-06 21:55:13,494 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,495 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,496 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,497 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,498 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,512 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,512 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,515 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,515 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,518 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,519 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,520 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,520 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:13,985 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 21:55:13,986 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 21:55:13,987 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 21:55:13,989 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 21:55:13,991 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 21:55:13,998 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 21:55:13,999 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 21:55:14,000 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 21:55:14,001 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 21:55:14,002 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 21:55:14,241 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,254 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,389 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,390 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,391 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,392 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,393 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,394 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,395 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,396 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,396 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,401 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,402 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,403 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,409 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,410 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,411 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,411 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,423 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,424 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,450 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,453 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,453 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:14,553 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:55:14,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:55:14,614 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-06 21:55:14,615 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-06 21:55:14,704 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,707 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,708 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,709 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,710 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,717 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,722 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,727 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,727 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,728 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,729 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,730 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,731 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,772 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 21:55:14,773 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 21:55:14,775 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 21:55:14,776 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 21:55:14,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 21:55:14,777 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 21:55:14,778 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 21:55:14,779 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 21:55:14,780 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 21:55:14,780 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 21:55:14,835 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,840 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,872 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,872 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,872 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,874 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,874 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,874 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,875 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,876 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,876 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,877 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,877 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,878 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,878 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,879 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,880 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,880 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,881 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,884 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,884 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,900 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,900 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,901 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:14,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:14,934 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:55:14,957 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-06 21:55:14,957 WARN L240 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_b19542ea-5689-411f-bd69-925d1a60c33a/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-06 21:55:15,027 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,028 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,028 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,030 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,031 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,036 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,037 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,037 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,038 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,039 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,040 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,041 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,041 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,080 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-06 21:55:15,080 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-06 21:55:15,082 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-06 21:55:15,083 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-06 21:55:15,084 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-06 21:55:15,084 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-06 21:55:15,084 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-06 21:55:15,085 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-06 21:55:15,086 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-06 21:55:15,087 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-06 21:55:15,126 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,132 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7771-7782] [2023-11-06 21:55:15,160 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,161 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,161 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,161 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,162 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,162 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,162 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,163 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,163 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,164 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,165 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,166 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,166 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,167 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,167 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,167 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,168 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,170 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,170 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,175 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,177 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,178 WARN L1577 CHandler]: Possible shadowing of function index [2023-11-06 21:55:15,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:15,512 WARN L672 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,512 WARN L672 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,512 WARN L672 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,512 WARN L672 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,513 WARN L672 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,514 WARN L672 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,514 WARN L672 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,514 WARN L672 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,514 WARN L672 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,514 WARN L672 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:15,522 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:55:15,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15 WrapperNode [2023-11-06 21:55:15,523 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:15,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:15,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:55:15,524 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:55:15,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,784 INFO L138 Inliner]: procedures = 716, calls = 1881, calls flagged for inlining = 58, calls inlined = 17, statements flattened = 1123 [2023-11-06 21:55:15,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:15,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:55:15,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:55:15,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:55:15,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:55:15,962 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:55:15,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:55:15,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:55:15,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (1/1) ... [2023-11-06 21:55:15,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:15,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:55:16,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:55:16,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:55:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-06 21:55:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-06 21:55:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-06 21:55:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-06 21:55:16,061 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-06 21:55:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-06 21:55:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:55:16,062 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-06 21:55:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-06 21:55:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-06 21:55:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-06 21:55:16,063 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-06 21:55:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-06 21:55:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:55:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 21:55:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-06 21:55:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-06 21:55:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-06 21:55:16,064 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-06 21:55:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-06 21:55:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-06 21:55:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-06 21:55:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 21:55:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 21:55:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:55:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 21:55:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:55:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:55:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:55:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-06 21:55:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-06 21:55:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-06 21:55:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-06 21:55:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:55:16,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:55:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-06 21:55:16,067 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-06 21:55:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 21:55:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 21:55:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-06 21:55:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-06 21:55:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-06 21:55:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-06 21:55:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-06 21:55:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-06 21:55:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-06 21:55:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-06 21:55:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-06 21:55:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-06 21:55:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:55:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:55:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:55:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:55:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-06 21:55:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-06 21:55:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-06 21:55:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-06 21:55:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-06 21:55:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-06 21:55:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:55:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-06 21:55:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-06 21:55:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:55:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 21:55:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:55:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2023-11-06 21:55:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2023-11-06 21:55:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-06 21:55:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-06 21:55:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-06 21:55:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-06 21:55:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-06 21:55:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-06 21:55:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-06 21:55:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-06 21:55:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-06 21:55:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-06 21:55:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-06 21:55:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-06 21:55:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 21:55:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-06 21:55:16,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:55:16,602 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:55:21,365 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:55:21,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:55:21,378 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 21:55:21,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:21 BoogieIcfgContainer [2023-11-06 21:55:21,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:55:21,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:55:21,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:55:21,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:55:21,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:55:11" (1/3) ... [2023-11-06 21:55:21,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ef610e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:21, skipping insertion in model container [2023-11-06 21:55:21,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:15" (2/3) ... [2023-11-06 21:55:21,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ef610e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:21, skipping insertion in model container [2023-11-06 21:55:21,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:21" (3/3) ... [2023-11-06 21:55:21,390 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2023-11-06 21:55:21,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:55:21,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 21:55:21,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:55:21,551 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;@54b479d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:55:21,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 21:55:21,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 299 states have (on average 1.2508361204013378) internal successors, (374), 302 states have internal predecessors, (374), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) [2023-11-06 21:55:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 21:55:21,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:21,611 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:21,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:21,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:21,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1413056833, now seen corresponding path program 1 times [2023-11-06 21:55:21,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:21,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803596053] [2023-11-06 21:55:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:21,645 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 [2023-11-06 21:55:21,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:21,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:21,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:22,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:55:22,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-06 21:55:22,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:22,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:22,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803596053] [2023-11-06 21:55:22,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803596053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:22,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:22,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:55:22,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205135001] [2023-11-06 21:55:22,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:22,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:55:22,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:22,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:55:22,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:55:22,866 INFO L87 Difference]: Start difference. First operand has 527 states, 299 states have (on average 1.2508361204013378) internal successors, (374), 302 states have internal predecessors, (374), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (193), 193 states have call predecessors, (193), 193 states have call successors, (193) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 21:55:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:23,035 INFO L93 Difference]: Finished difference Result 1041 states and 1640 transitions. [2023-11-06 21:55:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:55:23,037 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2023-11-06 21:55:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:23,058 INFO L225 Difference]: With dead ends: 1041 [2023-11-06 21:55:23,059 INFO L226 Difference]: Without dead ends: 520 [2023-11-06 21:55:23,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:55:23,085 INFO L413 NwaCegarLoop]: 750 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, 750 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 [2023-11-06 21:55:23,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:55:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-06 21:55:23,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-11-06 21:55:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 293 states have (on average 1.2320819112627985) internal successors, (361), 295 states have internal predecessors, (361), 193 states have call successors, (193), 33 states have call predecessors, (193), 32 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2023-11-06 21:55:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 745 transitions. [2023-11-06 21:55:23,266 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 745 transitions. Word has length 162 [2023-11-06 21:55:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:23,267 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 745 transitions. [2023-11-06 21:55:23,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 21:55:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 745 transitions. [2023-11-06 21:55:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-06 21:55:23,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:23,282 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:23,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:23,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:23,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:23,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash -508529149, now seen corresponding path program 1 times [2023-11-06 21:55:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:23,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097642029] [2023-11-06 21:55:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:23,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:23,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:23,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:24,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:55:24,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:55:24,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:24,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:24,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097642029] [2023-11-06 21:55:24,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097642029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:24,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:24,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:55:24,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826380257] [2023-11-06 21:55:24,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:24,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:55:24,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:24,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:55:24,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:55:24,875 INFO L87 Difference]: Start difference. First operand 520 states and 745 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-06 21:55:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:25,311 INFO L93 Difference]: Finished difference Result 1009 states and 1456 transitions. [2023-11-06 21:55:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:55:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 162 [2023-11-06 21:55:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:25,326 INFO L225 Difference]: With dead ends: 1009 [2023-11-06 21:55:25,326 INFO L226 Difference]: Without dead ends: 522 [2023-11-06 21:55:25,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:55:25,331 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 32 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:25,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2846 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 21:55:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-06 21:55:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-11-06 21:55:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 294 states have (on average 1.2312925170068028) internal successors, (362), 297 states have internal predecessors, (362), 193 states have call successors, (193), 33 states have call predecessors, (193), 33 states have return successors, (199), 191 states have call predecessors, (199), 191 states have call successors, (199) [2023-11-06 21:55:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 754 transitions. [2023-11-06 21:55:25,420 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 754 transitions. Word has length 162 [2023-11-06 21:55:25,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:25,421 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 754 transitions. [2023-11-06 21:55:25,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-06 21:55:25,421 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 754 transitions. [2023-11-06 21:55:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-06 21:55:25,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:25,425 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:25,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:25,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:25,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:25,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:25,650 INFO L85 PathProgramCache]: Analyzing trace with hash 924634, now seen corresponding path program 1 times [2023-11-06 21:55:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:25,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493191278] [2023-11-06 21:55:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:25,654 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 [2023-11-06 21:55:25,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:25,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:25,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:26,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:55:26,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:55:27,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:27,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493191278] [2023-11-06 21:55:27,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493191278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:27,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:27,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:55:27,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122622947] [2023-11-06 21:55:27,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:27,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:55:27,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:55:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:55:27,010 INFO L87 Difference]: Start difference. First operand 522 states and 754 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 21:55:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:28,666 INFO L93 Difference]: Finished difference Result 1032 states and 1532 transitions. [2023-11-06 21:55:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:55:28,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 170 [2023-11-06 21:55:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:28,677 INFO L225 Difference]: With dead ends: 1032 [2023-11-06 21:55:28,677 INFO L226 Difference]: Without dead ends: 543 [2023-11-06 21:55:28,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:55:28,684 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 83 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:28,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 4012 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-06 21:55:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-06 21:55:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2023-11-06 21:55:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 310 states have (on average 1.238709677419355) internal successors, (384), 313 states have internal predecessors, (384), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:55:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 812 transitions. [2023-11-06 21:55:28,754 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 812 transitions. Word has length 170 [2023-11-06 21:55:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:28,755 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 812 transitions. [2023-11-06 21:55:28,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-06 21:55:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 812 transitions. [2023-11-06 21:55:28,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-06 21:55:28,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:28,761 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:28,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:28,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:28,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:28,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:28,978 INFO L85 PathProgramCache]: Analyzing trace with hash -865797523, now seen corresponding path program 1 times [2023-11-06 21:55:28,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:28,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991523894] [2023-11-06 21:55:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:28,983 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 [2023-11-06 21:55:28,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:28,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:28,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:30,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:55:30,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:30,350 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-06 21:55:30,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:30,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:30,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991523894] [2023-11-06 21:55:30,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991523894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:30,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:30,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:55:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744092876] [2023-11-06 21:55:30,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:30,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:55:30,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:30,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:55:30,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:55:30,357 INFO L87 Difference]: Start difference. First operand 541 states and 812 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 21:55:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:30,961 INFO L93 Difference]: Finished difference Result 1055 states and 1601 transitions. [2023-11-06 21:55:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:55:30,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 185 [2023-11-06 21:55:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:30,970 INFO L225 Difference]: With dead ends: 1055 [2023-11-06 21:55:30,970 INFO L226 Difference]: Without dead ends: 547 [2023-11-06 21:55:30,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:55:30,977 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 51 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:30,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3520 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:55:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-06 21:55:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 541. [2023-11-06 21:55:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 310 states have (on average 1.238709677419355) internal successors, (384), 313 states have internal predecessors, (384), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:55:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 812 transitions. [2023-11-06 21:55:31,035 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 812 transitions. Word has length 185 [2023-11-06 21:55:31,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:31,036 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 812 transitions. [2023-11-06 21:55:31,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-06 21:55:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 812 transitions. [2023-11-06 21:55:31,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-06 21:55:31,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:31,041 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:31,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:31,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:31,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:31,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:31,266 INFO L85 PathProgramCache]: Analyzing trace with hash -499080953, now seen corresponding path program 1 times [2023-11-06 21:55:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:31,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364989790] [2023-11-06 21:55:31,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:31,268 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 [2023-11-06 21:55:31,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:31,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:31,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:32,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:55:32,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:32,767 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-06 21:55:32,767 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:32,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:32,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364989790] [2023-11-06 21:55:32,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364989790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:32,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:32,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:55:32,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991831259] [2023-11-06 21:55:32,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:32,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:55:32,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:55:32,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:55:32,771 INFO L87 Difference]: Start difference. First operand 541 states and 812 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-06 21:55:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:34,694 INFO L93 Difference]: Finished difference Result 1081 states and 1639 transitions. [2023-11-06 21:55:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:55:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) Word has length 201 [2023-11-06 21:55:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:34,706 INFO L225 Difference]: With dead ends: 1081 [2023-11-06 21:55:34,707 INFO L226 Difference]: Without dead ends: 573 [2023-11-06 21:55:34,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:55:34,713 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 102 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4641 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:34,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4641 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 21:55:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-06 21:55:34,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 541. [2023-11-06 21:55:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 310 states have (on average 1.238709677419355) internal successors, (384), 313 states have internal predecessors, (384), 195 states have call successors, (195), 33 states have call predecessors, (195), 34 states have return successors, (233), 194 states have call predecessors, (233), 193 states have call successors, (233) [2023-11-06 21:55:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 812 transitions. [2023-11-06 21:55:34,767 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 812 transitions. Word has length 201 [2023-11-06 21:55:34,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:34,768 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 812 transitions. [2023-11-06 21:55:34,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (27), 5 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-06 21:55:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 812 transitions. [2023-11-06 21:55:34,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-06 21:55:34,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:34,772 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:34,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:34,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:34,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:34,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:34,994 INFO L85 PathProgramCache]: Analyzing trace with hash -661656266, now seen corresponding path program 2 times [2023-11-06 21:55:34,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:34,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444148486] [2023-11-06 21:55:34,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:55:34,996 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 [2023-11-06 21:55:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:34,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:35,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:35,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:55:35,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:55:35,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:55:35,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 21:55:35,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:35,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:35,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444148486] [2023-11-06 21:55:35,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444148486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:35,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:35,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:55:35,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224444324] [2023-11-06 21:55:35,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:35,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:55:35,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:35,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:55:35,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:55:35,783 INFO L87 Difference]: Start difference. First operand 541 states and 812 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-06 21:55:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:36,003 INFO L93 Difference]: Finished difference Result 549 states and 820 transitions. [2023-11-06 21:55:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:55:36,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 216 [2023-11-06 21:55:36,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:36,013 INFO L225 Difference]: With dead ends: 549 [2023-11-06 21:55:36,013 INFO L226 Difference]: Without dead ends: 547 [2023-11-06 21:55:36,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:55:36,017 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 5 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:36,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3673 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:55:36,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-06 21:55:36,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 546. [2023-11-06 21:55:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 313 states have (on average 1.2364217252396166) internal successors, (387), 316 states have internal predecessors, (387), 196 states have call successors, (196), 34 states have call predecessors, (196), 35 states have return successors, (234), 195 states have call predecessors, (234), 194 states have call successors, (234) [2023-11-06 21:55:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 817 transitions. [2023-11-06 21:55:36,071 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 817 transitions. Word has length 216 [2023-11-06 21:55:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:36,075 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 817 transitions. [2023-11-06 21:55:36,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2023-11-06 21:55:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 817 transitions. [2023-11-06 21:55:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-06 21:55:36,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:36,080 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:36,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:36,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:36,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:36,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:36,303 INFO L85 PathProgramCache]: Analyzing trace with hash -252617203, now seen corresponding path program 3 times [2023-11-06 21:55:36,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:36,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915177276] [2023-11-06 21:55:36,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 21:55:36,305 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 [2023-11-06 21:55:36,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:36,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:36,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:38,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 21:55:38,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:55:38,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 21:55:38,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-06 21:55:39,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:55:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-06 21:55:39,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915177276] [2023-11-06 21:55:39,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915177276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:55:39,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:55:39,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-06 21:55:39,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930414663] [2023-11-06 21:55:39,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:55:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:55:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:55:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:55:39,662 INFO L87 Difference]: Start difference. First operand 546 states and 817 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-06 21:55:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:41,332 INFO L93 Difference]: Finished difference Result 1043 states and 1583 transitions. [2023-11-06 21:55:41,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:55:41,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2023-11-06 21:55:41,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:41,341 INFO L225 Difference]: With dead ends: 1043 [2023-11-06 21:55:41,341 INFO L226 Difference]: Without dead ends: 554 [2023-11-06 21:55:41,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:55:41,346 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 22 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:41,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 3425 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-06 21:55:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-06 21:55:41,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 551. [2023-11-06 21:55:41,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 316 states have (on average 1.2341772151898733) internal successors, (390), 318 states have internal predecessors, (390), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2023-11-06 21:55:41,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 824 transitions. [2023-11-06 21:55:41,399 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 824 transitions. Word has length 231 [2023-11-06 21:55:41,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:41,401 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 824 transitions. [2023-11-06 21:55:41,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-06 21:55:41,402 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 824 transitions. [2023-11-06 21:55:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-06 21:55:41,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:41,408 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:41,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:41,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:41,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:41,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1764999562, now seen corresponding path program 4 times [2023-11-06 21:55:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:41,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688113008] [2023-11-06 21:55:41,625 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 21:55:41,625 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 [2023-11-06 21:55:41,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:41,627 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:41,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:43,368 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 21:55:43,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:55:43,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 1981 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 21:55:43,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:44,008 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-06 21:55:44,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:44,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:44,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688113008] [2023-11-06 21:55:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688113008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:44,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:44,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:55:44,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403619284] [2023-11-06 21:55:44,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:44,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:55:44,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:44,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:55:44,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:55:44,012 INFO L87 Difference]: Start difference. First operand 551 states and 824 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-06 21:55:52,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:52,218 INFO L93 Difference]: Finished difference Result 1101 states and 1668 transitions. [2023-11-06 21:55:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:55:52,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 246 [2023-11-06 21:55:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:55:52,230 INFO L225 Difference]: With dead ends: 1101 [2023-11-06 21:55:52,230 INFO L226 Difference]: Without dead ends: 583 [2023-11-06 21:55:52,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:55:52,237 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 21 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:55:52,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3508 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-06 21:55:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-06 21:55:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 559. [2023-11-06 21:55:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 324 states have (on average 1.2345679012345678) internal successors, (400), 326 states have internal predecessors, (400), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2023-11-06 21:55:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 834 transitions. [2023-11-06 21:55:52,292 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 834 transitions. Word has length 246 [2023-11-06 21:55:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:55:52,293 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 834 transitions. [2023-11-06 21:55:52,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-06 21:55:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 834 transitions. [2023-11-06 21:55:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-06 21:55:52,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:55:52,299 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:52,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:52,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:55:52,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:55:52,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:52,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1609019020, now seen corresponding path program 1 times [2023-11-06 21:55:52,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:55:52,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41780827] [2023-11-06 21:55:52,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:52,520 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 [2023-11-06 21:55:52,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:55:52,521 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:55:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:55:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:54,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:55:54,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:55:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-06 21:55:55,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:55:55,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:55:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41780827] [2023-11-06 21:55:55,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41780827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:55,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:55,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:55:55,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674643016] [2023-11-06 21:55:55,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:55,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:55:55,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:55:55,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:55:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:55:55,050 INFO L87 Difference]: Start difference. First operand 559 states and 834 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-06 21:56:02,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:56:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:03,448 INFO L93 Difference]: Finished difference Result 1111 states and 1678 transitions. [2023-11-06 21:56:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:56:03,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 246 [2023-11-06 21:56:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:03,459 INFO L225 Difference]: With dead ends: 1111 [2023-11-06 21:56:03,459 INFO L226 Difference]: Without dead ends: 585 [2023-11-06 21:56:03,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:03,464 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 18 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:03,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4227 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-06 21:56:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-11-06 21:56:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 563. [2023-11-06 21:56:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 328 states have (on average 1.2317073170731707) internal successors, (404), 330 states have internal predecessors, (404), 198 states have call successors, (198), 35 states have call predecessors, (198), 35 states have return successors, (236), 197 states have call predecessors, (236), 196 states have call successors, (236) [2023-11-06 21:56:03,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 838 transitions. [2023-11-06 21:56:03,508 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 838 transitions. Word has length 246 [2023-11-06 21:56:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:03,508 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 838 transitions. [2023-11-06 21:56:03,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-06 21:56:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 838 transitions. [2023-11-06 21:56:03,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-06 21:56:03,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:03,513 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:03,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:03,729 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:03,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:03,730 INFO L85 PathProgramCache]: Analyzing trace with hash -178850802, now seen corresponding path program 1 times [2023-11-06 21:56:03,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:03,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931482815] [2023-11-06 21:56:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:03,732 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 [2023-11-06 21:56:03,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:03,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:03,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:05,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:56:05,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 200 proven. 3 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-06 21:56:05,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:05,985 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2023-11-06 21:56:05,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:05,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931482815] [2023-11-06 21:56:05,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931482815] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:05,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:56:05,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-06 21:56:05,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063663614] [2023-11-06 21:56:05,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:56:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:56:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:56:05,990 INFO L87 Difference]: Start difference. First operand 563 states and 838 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-06 21:56:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:06,167 INFO L93 Difference]: Finished difference Result 1101 states and 1644 transitions. [2023-11-06 21:56:06,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:56:06,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 246 [2023-11-06 21:56:06,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:06,180 INFO L225 Difference]: With dead ends: 1101 [2023-11-06 21:56:06,180 INFO L226 Difference]: Without dead ends: 578 [2023-11-06 21:56:06,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:06,186 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 5 mSDsluCounter, 3704 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:06,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4446 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:56:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-11-06 21:56:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 570. [2023-11-06 21:56:06,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 333 states have (on average 1.2282282282282282) internal successors, (409), 335 states have internal predecessors, (409), 199 states have call successors, (199), 35 states have call predecessors, (199), 36 states have return successors, (241), 199 states have call predecessors, (241), 197 states have call successors, (241) [2023-11-06 21:56:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 849 transitions. [2023-11-06 21:56:06,239 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 849 transitions. Word has length 246 [2023-11-06 21:56:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:06,239 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 849 transitions. [2023-11-06 21:56:06,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-06 21:56:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 849 transitions. [2023-11-06 21:56:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-06 21:56:06,243 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:06,243 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:06,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:06,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:06,469 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:06,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:06,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1210443212, now seen corresponding path program 1 times [2023-11-06 21:56:06,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:06,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114043767] [2023-11-06 21:56:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:06,473 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 [2023-11-06 21:56:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:06,475 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:06,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:08,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 1974 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 21:56:08,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 220 proven. 3 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-06 21:56:08,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-11-06 21:56:09,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114043767] [2023-11-06 21:56:09,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114043767] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:09,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:56:09,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2023-11-06 21:56:09,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337506113] [2023-11-06 21:56:09,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:09,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 21:56:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 21:56:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:56:09,117 INFO L87 Difference]: Start difference. First operand 570 states and 849 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-06 21:56:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:10,567 INFO L93 Difference]: Finished difference Result 1097 states and 1636 transitions. [2023-11-06 21:56:10,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 21:56:10,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 246 [2023-11-06 21:56:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:10,576 INFO L225 Difference]: With dead ends: 1097 [2023-11-06 21:56:10,576 INFO L226 Difference]: Without dead ends: 566 [2023-11-06 21:56:10,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:10,581 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 4 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6151 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:10,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6151 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 21:56:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-06 21:56:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-11-06 21:56:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 330 states have (on average 1.2272727272727273) internal successors, (405), 333 states have internal predecessors, (405), 198 states have call successors, (198), 35 states have call predecessors, (198), 36 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2023-11-06 21:56:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 841 transitions. [2023-11-06 21:56:10,633 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 841 transitions. Word has length 246 [2023-11-06 21:56:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 841 transitions. [2023-11-06 21:56:10,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-06 21:56:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 841 transitions. [2023-11-06 21:56:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-06 21:56:10,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:10,637 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:10,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-06 21:56:10,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:10,861 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:10,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash -634488110, now seen corresponding path program 1 times [2023-11-06 21:56:10,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:10,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830638301] [2023-11-06 21:56:10,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:10,864 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 [2023-11-06 21:56:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:10,866 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:10,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:12,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:56:12,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-06 21:56:13,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:13,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:13,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830638301] [2023-11-06 21:56:13,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830638301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:13,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:13,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 21:56:13,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790188092] [2023-11-06 21:56:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:56:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:13,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:56:13,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:56:13,083 INFO L87 Difference]: Start difference. First operand 566 states and 841 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-06 21:56:13,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:13,795 INFO L93 Difference]: Finished difference Result 1089 states and 1627 transitions. [2023-11-06 21:56:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:56:13,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 257 [2023-11-06 21:56:13,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:13,804 INFO L225 Difference]: With dead ends: 1089 [2023-11-06 21:56:13,804 INFO L226 Difference]: Without dead ends: 568 [2023-11-06 21:56:13,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:56:13,809 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 121 mSDsluCounter, 3401 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:13,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 4121 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:56:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-06 21:56:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-11-06 21:56:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 331 states have (on average 1.2265861027190332) internal successors, (406), 335 states have internal predecessors, (406), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (242), 197 states have call predecessors, (242), 196 states have call successors, (242) [2023-11-06 21:56:13,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 846 transitions. [2023-11-06 21:56:13,866 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 846 transitions. Word has length 257 [2023-11-06 21:56:13,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:13,868 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 846 transitions. [2023-11-06 21:56:13,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-06 21:56:13,869 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 846 transitions. [2023-11-06 21:56:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-06 21:56:13,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:13,873 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:13,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:14,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:14,088 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:14,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 29530153, now seen corresponding path program 1 times [2023-11-06 21:56:14,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:14,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942572589] [2023-11-06 21:56:14,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:14,092 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 [2023-11-06 21:56:14,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:14,094 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:14,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:16,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:56:16,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-11-06 21:56:16,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:16,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:16,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942572589] [2023-11-06 21:56:16,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942572589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:16,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:16,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 21:56:16,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801952017] [2023-11-06 21:56:16,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:16,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 21:56:16,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:16,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 21:56:16,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-06 21:56:16,568 INFO L87 Difference]: Start difference. First operand 568 states and 846 transitions. Second operand has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 5 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 21:56:18,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:18,542 INFO L93 Difference]: Finished difference Result 1113 states and 1664 transitions. [2023-11-06 21:56:18,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:56:18,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 5 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 265 [2023-11-06 21:56:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:18,550 INFO L225 Difference]: With dead ends: 1113 [2023-11-06 21:56:18,550 INFO L226 Difference]: Without dead ends: 590 [2023-11-06 21:56:18,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:18,555 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 172 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:18,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 5201 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 21:56:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-11-06 21:56:18,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 588. [2023-11-06 21:56:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 353 states have internal predecessors, (431), 199 states have call successors, (199), 35 states have call predecessors, (199), 37 states have return successors, (243), 199 states have call predecessors, (243), 197 states have call successors, (243) [2023-11-06 21:56:18,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 873 transitions. [2023-11-06 21:56:18,614 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 873 transitions. Word has length 265 [2023-11-06 21:56:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:18,615 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 873 transitions. [2023-11-06 21:56:18,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 5 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 21:56:18,616 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 873 transitions. [2023-11-06 21:56:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-11-06 21:56:18,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:18,619 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:18,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:18,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:18,833 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:18,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:18,834 INFO L85 PathProgramCache]: Analyzing trace with hash -411120746, now seen corresponding path program 2 times [2023-11-06 21:56:18,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:18,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356425960] [2023-11-06 21:56:18,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:56:18,837 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 [2023-11-06 21:56:18,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:18,838 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:18,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:23,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:56:23,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:56:23,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 2142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:56:23,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:23,687 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-06 21:56:23,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:23,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:23,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356425960] [2023-11-06 21:56:23,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356425960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:23,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:23,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:56:23,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635019172] [2023-11-06 21:56:23,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:23,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:56:23,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:23,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:56:23,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:23,692 INFO L87 Difference]: Start difference. First operand 588 states and 873 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 21:56:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:24,715 INFO L93 Difference]: Finished difference Result 1137 states and 1698 transitions. [2023-11-06 21:56:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:56:24,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 280 [2023-11-06 21:56:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:24,723 INFO L225 Difference]: With dead ends: 1137 [2023-11-06 21:56:24,723 INFO L226 Difference]: Without dead ends: 594 [2023-11-06 21:56:24,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:56:24,728 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 140 mSDsluCounter, 4059 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:24,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 4772 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 21:56:24,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-06 21:56:24,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 588. [2023-11-06 21:56:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 353 states have internal predecessors, (431), 199 states have call successors, (199), 35 states have call predecessors, (199), 37 states have return successors, (243), 199 states have call predecessors, (243), 197 states have call successors, (243) [2023-11-06 21:56:24,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 873 transitions. [2023-11-06 21:56:24,786 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 873 transitions. Word has length 280 [2023-11-06 21:56:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:24,788 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 873 transitions. [2023-11-06 21:56:24,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-06 21:56:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 873 transitions. [2023-11-06 21:56:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-06 21:56:24,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:24,792 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:24,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 21:56:25,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:25,017 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:25,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1831486921, now seen corresponding path program 1 times [2023-11-06 21:56:25,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255428076] [2023-11-06 21:56:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:25,021 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 [2023-11-06 21:56:25,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:25,022 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:27,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:56:27,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 308 proven. 3 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-06 21:56:27,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:56:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2023-11-06 21:56:28,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255428076] [2023-11-06 21:56:28,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255428076] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:56:28,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 21:56:28,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2023-11-06 21:56:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541680114] [2023-11-06 21:56:28,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 21:56:28,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 21:56:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 21:56:28,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:56:28,402 INFO L87 Difference]: Start difference. First operand 588 states and 873 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-06 21:56:29,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:29,013 INFO L93 Difference]: Finished difference Result 1128 states and 1677 transitions. [2023-11-06 21:56:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:56:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) Word has length 311 [2023-11-06 21:56:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:29,020 INFO L225 Difference]: With dead ends: 1128 [2023-11-06 21:56:29,021 INFO L226 Difference]: Without dead ends: 588 [2023-11-06 21:56:29,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:56:29,025 INFO L413 NwaCegarLoop]: 737 mSDtfsCounter, 95 mSDsluCounter, 6472 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 7209 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:29,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 7209 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 21:56:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-11-06 21:56:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-11-06 21:56:29,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 353 states have internal predecessors, (430), 199 states have call successors, (199), 35 states have call predecessors, (199), 37 states have return successors, (243), 199 states have call predecessors, (243), 197 states have call successors, (243) [2023-11-06 21:56:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 872 transitions. [2023-11-06 21:56:29,084 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 872 transitions. Word has length 311 [2023-11-06 21:56:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:29,085 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 872 transitions. [2023-11-06 21:56:29,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (42), 3 states have call predecessors, (42), 4 states have return successors, (39), 6 states have call predecessors, (39), 4 states have call successors, (39) [2023-11-06 21:56:29,086 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 872 transitions. [2023-11-06 21:56:29,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-06 21:56:29,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:29,090 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:29,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:29,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:29,313 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:29,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:29,314 INFO L85 PathProgramCache]: Analyzing trace with hash -584349429, now seen corresponding path program 1 times [2023-11-06 21:56:29,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:29,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741702547] [2023-11-06 21:56:29,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:29,316 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 [2023-11-06 21:56:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:29,317 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:29,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:31,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 21:56:31,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-06 21:56:32,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:32,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741702547] [2023-11-06 21:56:32,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741702547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:32,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:32,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 21:56:32,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113333153] [2023-11-06 21:56:32,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:32,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:56:32,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:32,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:56:32,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:56:32,135 INFO L87 Difference]: Start difference. First operand 588 states and 872 transitions. Second operand has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-06 21:56:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:33,617 INFO L93 Difference]: Finished difference Result 1125 states and 1670 transitions. [2023-11-06 21:56:33,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 21:56:33,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) Word has length 311 [2023-11-06 21:56:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:33,622 INFO L225 Difference]: With dead ends: 1125 [2023-11-06 21:56:33,622 INFO L226 Difference]: Without dead ends: 588 [2023-11-06 21:56:33,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:56:33,626 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 122 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 4602 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:33,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 4602 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-06 21:56:33,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-11-06 21:56:33,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2023-11-06 21:56:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 350 states have (on average 1.2285714285714286) internal successors, (430), 353 states have internal predecessors, (430), 199 states have call successors, (199), 35 states have call predecessors, (199), 37 states have return successors, (240), 199 states have call predecessors, (240), 197 states have call successors, (240) [2023-11-06 21:56:33,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 869 transitions. [2023-11-06 21:56:33,687 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 869 transitions. Word has length 311 [2023-11-06 21:56:33,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:33,688 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 869 transitions. [2023-11-06 21:56:33,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 5 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (31), 4 states have call predecessors, (31), 5 states have call successors, (31) [2023-11-06 21:56:33,689 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 869 transitions. [2023-11-06 21:56:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-06 21:56:33,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:33,693 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:33,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:33,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:33,901 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:33,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1343847143, now seen corresponding path program 2 times [2023-11-06 21:56:33,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:33,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821240845] [2023-11-06 21:56:33,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:56:33,906 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 [2023-11-06 21:56:33,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:33,910 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:33,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:37,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:56:37,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:56:38,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:56:38,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-06 21:56:38,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:38,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821240845] [2023-11-06 21:56:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821240845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:38,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:38,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 21:56:38,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591274100] [2023-11-06 21:56:38,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:38,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 21:56:38,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:38,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 21:56:38,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:56:38,565 INFO L87 Difference]: Start difference. First operand 588 states and 869 transitions. Second operand has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-06 21:56:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:40,989 INFO L93 Difference]: Finished difference Result 1153 states and 1706 transitions. [2023-11-06 21:56:40,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:56:40,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) Word has length 311 [2023-11-06 21:56:40,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:40,997 INFO L225 Difference]: With dead ends: 1153 [2023-11-06 21:56:40,997 INFO L226 Difference]: Without dead ends: 610 [2023-11-06 21:56:41,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-06 21:56:41,002 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 189 mSDsluCounter, 5126 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 5802 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:41,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 5802 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 21:56:41,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-06 21:56:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 566. [2023-11-06 21:56:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 330 states have (on average 1.2242424242424241) internal successors, (404), 333 states have internal predecessors, (404), 198 states have call successors, (198), 35 states have call predecessors, (198), 36 states have return successors, (231), 197 states have call predecessors, (231), 196 states have call successors, (231) [2023-11-06 21:56:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 833 transitions. [2023-11-06 21:56:41,055 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 833 transitions. Word has length 311 [2023-11-06 21:56:41,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:41,056 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 833 transitions. [2023-11-06 21:56:41,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (36), 3 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 6 states have call successors, (33) [2023-11-06 21:56:41,057 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 833 transitions. [2023-11-06 21:56:41,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-11-06 21:56:41,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:41,061 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:41,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:41,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:41,277 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:41,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash 30658354, now seen corresponding path program 1 times [2023-11-06 21:56:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521300087] [2023-11-06 21:56:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:41,281 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 [2023-11-06 21:56:41,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:41,282 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:41,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:47,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 2411 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 21:56:47,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:56:47,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 21:56:47,971 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 21:56:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2023-11-06 21:56:48,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:56:48,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:56:48,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521300087] [2023-11-06 21:56:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521300087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:48,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:48,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-06 21:56:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22611822] [2023-11-06 21:56:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:48,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 21:56:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:56:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 21:56:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:56:48,162 INFO L87 Difference]: Start difference. First operand 566 states and 833 transitions. Second operand has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-06 21:56:59,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:56:59,110 INFO L93 Difference]: Finished difference Result 1171 states and 1765 transitions. [2023-11-06 21:56:59,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 21:56:59,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 326 [2023-11-06 21:56:59,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:56:59,122 INFO L225 Difference]: With dead ends: 1171 [2023-11-06 21:56:59,123 INFO L226 Difference]: Without dead ends: 638 [2023-11-06 21:56:59,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2023-11-06 21:56:59,129 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 99 mSDsluCounter, 7220 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 7920 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-06 21:56:59,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 7920 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-11-06 21:56:59,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-06 21:56:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 603. [2023-11-06 21:56:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 366 states have (on average 1.2322404371584699) internal successors, (451), 368 states have internal predecessors, (451), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-06 21:56:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 912 transitions. [2023-11-06 21:56:59,206 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 912 transitions. Word has length 326 [2023-11-06 21:56:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:56:59,207 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 912 transitions. [2023-11-06 21:56:59,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.307692307692308) internal successors, (121), 14 states have internal predecessors, (121), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-06 21:56:59,208 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 912 transitions. [2023-11-06 21:56:59,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-11-06 21:56:59,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:56:59,242 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:56:59,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:56:59,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:56:59,457 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:56:59,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:59,459 INFO L85 PathProgramCache]: Analyzing trace with hash 304812530, now seen corresponding path program 1 times [2023-11-06 21:56:59,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:56:59,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857767259] [2023-11-06 21:56:59,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:59,461 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 [2023-11-06 21:56:59,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:56:59,462 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:56:59,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:01,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 2405 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:57:01,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:57:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-11-06 21:57:01,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:57:01,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:57:01,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857767259] [2023-11-06 21:57:01,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857767259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:01,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:01,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 21:57:01,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130976242] [2023-11-06 21:57:01,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:01,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:57:01,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:57:01,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:57:01,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:57:01,907 INFO L87 Difference]: Start difference. First operand 603 states and 912 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-06 21:57:02,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:57:02,030 INFO L93 Difference]: Finished difference Result 1176 states and 1847 transitions. [2023-11-06 21:57:02,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:57:02,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 326 [2023-11-06 21:57:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:57:02,055 INFO L225 Difference]: With dead ends: 1176 [2023-11-06 21:57:02,055 INFO L226 Difference]: Without dead ends: 606 [2023-11-06 21:57:02,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:57:02,059 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 7 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2221 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 [2023-11-06 21:57:02,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2221 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:57:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2023-11-06 21:57:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2023-11-06 21:57:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 366 states have (on average 1.2295081967213115) internal successors, (450), 368 states have internal predecessors, (450), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-06 21:57:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 911 transitions. [2023-11-06 21:57:02,114 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 911 transitions. Word has length 326 [2023-11-06 21:57:02,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:57:02,115 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 911 transitions. [2023-11-06 21:57:02,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-06 21:57:02,116 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 911 transitions. [2023-11-06 21:57:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-06 21:57:02,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:57:02,126 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:02,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:02,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:57:02,341 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:57:02,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:02,342 INFO L85 PathProgramCache]: Analyzing trace with hash 44744114, now seen corresponding path program 1 times [2023-11-06 21:57:02,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:57:02,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752334116] [2023-11-06 21:57:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:02,346 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 [2023-11-06 21:57:02,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:57:02,347 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:57:02,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:08,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 21:57:08,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:57:09,912 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:57:09,913 INFO L351 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 [2023-11-06 21:57:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2023-11-06 21:57:10,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:57:10,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:57:10,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752334116] [2023-11-06 21:57:10,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752334116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:10,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:10,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 21:57:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402025163] [2023-11-06 21:57:10,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:10,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 21:57:10,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:57:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 21:57:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:57:10,130 INFO L87 Difference]: Start difference. First operand 603 states and 911 transitions. Second operand has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-06 21:57:21,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:57:21,822 INFO L93 Difference]: Finished difference Result 1204 states and 1865 transitions. [2023-11-06 21:57:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 21:57:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 330 [2023-11-06 21:57:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:57:21,829 INFO L225 Difference]: With dead ends: 1204 [2023-11-06 21:57:21,830 INFO L226 Difference]: Without dead ends: 634 [2023-11-06 21:57:21,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-11-06 21:57:21,835 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 90 mSDsluCounter, 5935 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 6630 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:57:21,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 6630 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2023-11-06 21:57:21,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-11-06 21:57:21,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 585. [2023-11-06 21:57:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 348 states have (on average 1.2155172413793103) internal successors, (423), 350 states have internal predecessors, (423), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-06 21:57:21,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 884 transitions. [2023-11-06 21:57:21,887 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 884 transitions. Word has length 330 [2023-11-06 21:57:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:57:21,887 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 884 transitions. [2023-11-06 21:57:21,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.909090909090908) internal successors, (120), 12 states have internal predecessors, (120), 7 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2023-11-06 21:57:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 884 transitions. [2023-11-06 21:57:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-06 21:57:21,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:57:21,891 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:21,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:57:22,107 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:57:22,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash -625035022, now seen corresponding path program 1 times [2023-11-06 21:57:22,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:57:22,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927612674] [2023-11-06 21:57:22,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:22,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:57:22,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:57:22,111 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:57:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:24,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:57:24,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:57:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-11-06 21:57:24,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:57:24,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:57:24,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927612674] [2023-11-06 21:57:24,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927612674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:24,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:24,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:57:24,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349384405] [2023-11-06 21:57:24,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:24,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:57:24,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:57:24,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:57:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:57:24,899 INFO L87 Difference]: Start difference. First operand 585 states and 884 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-06 21:57:26,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 21:57:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:57:32,772 INFO L93 Difference]: Finished difference Result 1137 states and 1787 transitions. [2023-11-06 21:57:32,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:32,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 330 [2023-11-06 21:57:32,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:57:32,786 INFO L225 Difference]: With dead ends: 1137 [2023-11-06 21:57:32,786 INFO L226 Difference]: Without dead ends: 585 [2023-11-06 21:57:32,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:57:32,793 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 10 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-06 21:57:32,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2900 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-11-06 21:57:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-11-06 21:57:32,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2023-11-06 21:57:32,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 348 states have (on average 1.2126436781609196) internal successors, (422), 350 states have internal predecessors, (422), 198 states have call successors, (198), 35 states have call predecessors, (198), 37 states have return successors, (263), 199 states have call predecessors, (263), 196 states have call successors, (263) [2023-11-06 21:57:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 883 transitions. [2023-11-06 21:57:32,875 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 883 transitions. Word has length 330 [2023-11-06 21:57:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:57:32,876 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 883 transitions. [2023-11-06 21:57:32,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-06 21:57:32,878 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 883 transitions. [2023-11-06 21:57:32,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-11-06 21:57:32,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:57:32,882 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:32,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 21:57:33,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 21:57:33,098 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:57:33,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:33,099 INFO L85 PathProgramCache]: Analyzing trace with hash 660506034, now seen corresponding path program 1 times [2023-11-06 21:57:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:57:33,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132208302] [2023-11-06 21:57:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:33,102 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 [2023-11-06 21:57:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:57:33,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 21:57:33,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19542ea-5689-411f-bd69-925d1a60c33a/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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