./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 0e0057cc 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 8a38a43769c42d8669572ba16bfe2bf0ba7986e6a4cc5f2e35ff1bb4fb35c723 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:30,159 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:30,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:51:30,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:30,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:30,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:30,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:30,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:30,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:30,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:30,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:30,340 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:30,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:30,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:30,343 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:30,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:30,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:30,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:30,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:30,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:30,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:30,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:30,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:30,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:30,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:30,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:30,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:30,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:30,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:30,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:30,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:30,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:30,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:30,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:30,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:30,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:30,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:30,353 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:30,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:30,354 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a38a43769c42d8669572ba16bfe2bf0ba7986e6a4cc5f2e35ff1bb4fb35c723 [2023-11-26 11:51:30,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:30,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:30,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:30,671 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:30,671 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:30,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-26 11:51:33,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:34,444 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:34,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i [2023-11-26 11:51:34,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/data/43be6611e/4754ae03fa1943adac1b8e470fd46d84/FLAGcb2f1ad42 [2023-11-26 11:51:34,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/data/43be6611e/4754ae03fa1943adac1b8e470fd46d84 [2023-11-26 11:51:34,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:34,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:34,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:34,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:34,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:34,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:34" (1/1) ... [2023-11-26 11:51:34,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c72521a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:34, skipping insertion in model container [2023-11-26 11:51:34,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:34" (1/1) ... [2023-11-26 11:51:34,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:34,968 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-26 11:51:34,978 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-26 11:51:36,277 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,282 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,283 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,287 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,328 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:36,897 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:51:36,898 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:51:36,900 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:51:36,901 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:51:36,903 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:51:36,904 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:51:36,905 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:51:36,906 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:51:36,907 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:51:36,908 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:51:37,147 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,155 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,265 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,266 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,267 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,267 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,268 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,268 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,269 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,269 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,270 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,270 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,271 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,271 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,272 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,275 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,275 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,276 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,276 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,287 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,288 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:37,366 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:37,393 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4501,4514] [2023-11-26 11:51:37,395 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_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness_negated.i[4561,4574] [2023-11-26 11:51:37,455 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,455 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,456 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,456 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,464 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,481 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,482 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,483 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,484 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,486 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,550 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:51:37,552 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:51:37,553 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:51:37,555 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:51:37,556 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:51:37,556 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:51:37,557 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:51:37,557 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:51:37,558 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:51:37,559 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:51:37,613 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,621 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-26 11:51:37,663 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,665 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,665 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,666 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,668 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,674 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,674 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,683 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,684 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:51:37,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:38,045 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,046 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,046 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,046 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,046 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,047 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,047 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,048 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,049 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,049 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,049 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,050 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,050 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,050 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,050 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:51:38,059 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:38,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38 WrapperNode [2023-11-26 11:51:38,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:38,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:38,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:38,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:38,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,307 INFO L138 Inliner]: procedures = 696, calls = 1898, calls flagged for inlining = 57, calls inlined = 17, statements flattened = 1170 [2023-11-26 11:51:38,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:38,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:38,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:38,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:38,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,465 INFO L175 MemorySlicer]: Split 383 memory accesses to 7 slices as follows [2, 236, 7, 9, 24, 102, 3]. 62 percent of accesses are in the largest equivalence class. The 260 initializations are split as follows [2, 236, 2, 1, 5, 11, 3]. The 23 writes are split as follows [0, 0, 1, 1, 8, 13, 0]. [2023-11-26 11:51:38,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,545 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:38,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:38,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:38,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:38,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (1/1) ... [2023-11-26 11:51:38,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:38,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:38,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:38,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-26 11:51:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-26 11:51:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-26 11:51:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-26 11:51:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-26 11:51:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-26 11:51:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-26 11:51:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-26 11:51:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-26 11:51:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-26 11:51:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-26 11:51:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-26 11:51:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-26 11:51:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-26 11:51:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-26 11:51:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-26 11:51:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:51:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:51:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-26 11:51:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-26 11:51:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:51:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:51:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:51:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:51:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:51:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:51:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:51:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:51:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:51:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:51:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-26 11:51:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-26 11:51:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-26 11:51:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-26 11:51:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:38,745 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-26 11:51:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-26 11:51:38,747 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-11-26 11:51:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-11-26 11:51:38,748 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-26 11:51:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-26 11:51:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-26 11:51:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-26 11:51:38,754 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-26 11:51:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-26 11:51:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-26 11:51:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-26 11:51:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-26 11:51:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-26 11:51:38,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-26 11:51:38,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-26 11:51:38,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-26 11:51:38,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:51:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:51:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-26 11:51:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-26 11:51:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-26 11:51:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-26 11:51:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-26 11:51:38,758 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-26 11:51:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-26 11:51:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:51:38,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:51:38,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:51:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:51:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_push_ref [2023-11-26 11:51:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_push_ref [2023-11-26 11:51:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-26 11:51:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-26 11:51:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-26 11:51:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-26 11:51:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-26 11:51:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:51:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:51:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:51:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:51:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:51:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-26 11:51:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-26 11:51:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-26 11:51:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-26 11:51:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-26 11:51:38,764 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-26 11:51:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:51:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:51:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:51:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:51:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:51:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:51:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:51:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:51:39,189 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:39,192 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:40,779 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:40,935 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:40,936 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 11:51:40,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:40 BoogieIcfgContainer [2023-11-26 11:51:40,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:40,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:40,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:40,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:40,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:34" (1/3) ... [2023-11-26 11:51:40,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2d33d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:40, skipping insertion in model container [2023-11-26 11:51:40,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:38" (2/3) ... [2023-11-26 11:51:40,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2d33d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:40, skipping insertion in model container [2023-11-26 11:51:40,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:40" (3/3) ... [2023-11-26 11:51:40,947 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness_negated.i [2023-11-26 11:51:40,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:40,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:51:41,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:41,051 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=LoopHeads, 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;@550ee363, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:41,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:51:41,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 518 states, 282 states have (on average 1.2695035460992907) internal successors, (358), 285 states have internal predecessors, (358), 199 states have call successors, (199), 35 states have call predecessors, (199), 35 states have return successors, (199), 199 states have call predecessors, (199), 199 states have call successors, (199) [2023-11-26 11:51:41,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-26 11:51:41,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:41,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 3, 3, 3, 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] [2023-11-26 11:51:41,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:41,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:41,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1958581679, now seen corresponding path program 1 times [2023-11-26 11:51:41,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:41,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453864841] [2023-11-26 11:51:41,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:41,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:51:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:51:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:51:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:51:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:51:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:51:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:51:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:51:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:51:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:51:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:51:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:51:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:51:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-26 11:51:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-26 11:51:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 11:51:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-26 11:51:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:51:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-26 11:51:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-26 11:51:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-26 11:51:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-26 11:51:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-26 11:51:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-26 11:51:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-26 11:51:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,118 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-26 11:51:43,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:43,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453864841] [2023-11-26 11:51:43,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453864841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:43,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34564336] [2023-11-26 11:51:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:43,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:43,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:43,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:43,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:51:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:43,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:43,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-26 11:51:44,032 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:44,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34564336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:44,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:44,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-26 11:51:44,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256478397] [2023-11-26 11:51:44,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:44,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:51:44,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:44,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:44,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:51:44,077 INFO L87 Difference]: Start difference. First operand has 518 states, 282 states have (on average 1.2695035460992907) internal successors, (358), 285 states have internal predecessors, (358), 199 states have call successors, (199), 35 states have call predecessors, (199), 35 states have return successors, (199), 199 states have call predecessors, (199), 199 states have call successors, (199) 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-26 11:51:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:44,736 INFO L93 Difference]: Finished difference Result 1015 states and 1628 transitions. [2023-11-26 11:51:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:44,739 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 175 [2023-11-26 11:51:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:44,757 INFO L225 Difference]: With dead ends: 1015 [2023-11-26 11:51:44,757 INFO L226 Difference]: Without dead ends: 517 [2023-11-26 11:51:44,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:51:44,771 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 32 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:44,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 2712 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:51:44,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-26 11:51:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2023-11-26 11:51:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 281 states have (on average 1.2455516014234875) internal successors, (350), 284 states have internal predecessors, (350), 199 states have call successors, (199), 35 states have call predecessors, (199), 35 states have return successors, (205), 197 states have call predecessors, (205), 197 states have call successors, (205) [2023-11-26 11:51:44,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 754 transitions. [2023-11-26 11:51:44,882 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 754 transitions. Word has length 175 [2023-11-26 11:51:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:44,883 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 754 transitions. [2023-11-26 11:51:44,884 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, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-26 11:51:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 754 transitions. [2023-11-26 11:51:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-26 11:51:44,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:44,889 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 4, 4, 4, 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] [2023-11-26 11:51:44,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:45,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:51:45,100 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:45,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash -306364341, now seen corresponding path program 1 times [2023-11-26 11:51:45,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:45,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433819033] [2023-11-26 11:51:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:45,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:51:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:51:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:51:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:51:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:51:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:51:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:51:45,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:51:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:51:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:51:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:51:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:51:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:51:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:51:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-26 11:51:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:51:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-26 11:51:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-26 11:51:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-26 11:51:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:51:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-26 11:51:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-26 11:51:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-26 11:51:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-26 11:51:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-26 11:51:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-26 11:51:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-26 11:51:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-26 11:51:46,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:46,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433819033] [2023-11-26 11:51:46,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433819033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:51:46,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033912313] [2023-11-26 11:51:46,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:46,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:46,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:46,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:46,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:51:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:47,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:47,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-26 11:51:47,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:47,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033912313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:47,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:51:47,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-26 11:51:47,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011808631] [2023-11-26 11:51:47,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:47,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:51:47,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:47,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:51:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:51:47,442 INFO L87 Difference]: Start difference. First operand 517 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, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-11-26 11:51:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:48,511 INFO L93 Difference]: Finished difference Result 1012 states and 1517 transitions. [2023-11-26 11:51:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:51:48,512 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, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 183 [2023-11-26 11:51:48,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:48,520 INFO L225 Difference]: With dead ends: 1012 [2023-11-26 11:51:48,520 INFO L226 Difference]: Without dead ends: 538 [2023-11-26 11:51:48,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:51:48,525 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 82 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 3815 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:48,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 3815 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:51:48,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-26 11:51:48,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 536. [2023-11-26 11:51:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 297 states have (on average 1.2525252525252526) internal successors, (372), 300 states have internal predecessors, (372), 201 states have call successors, (201), 35 states have call predecessors, (201), 36 states have return successors, (239), 200 states have call predecessors, (239), 199 states have call successors, (239) [2023-11-26 11:51:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 812 transitions. [2023-11-26 11:51:48,588 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 812 transitions. Word has length 183 [2023-11-26 11:51:48,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:48,589 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 812 transitions. [2023-11-26 11:51:48,589 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, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-11-26 11:51:48,589 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 812 transitions. [2023-11-26 11:51:48,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-26 11:51:48,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:48,596 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:48,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:48,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:48,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:48,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 756876731, now seen corresponding path program 1 times [2023-11-26 11:51:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:48,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142835035] [2023-11-26 11:51:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:48,907 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:51:48,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699325734] [2023-11-26 11:51:48,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:48,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:48,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:48,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:48,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:51:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:49,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:51:49,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-26 11:51:49,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:49,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:49,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142835035] [2023-11-26 11:51:49,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:51:49,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699325734] [2023-11-26 11:51:49,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699325734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:49,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:49,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:51:49,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055969201] [2023-11-26 11:51:49,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:49,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:49,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:49,737 INFO L87 Difference]: Start difference. First operand 536 states and 812 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-26 11:51:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:50,352 INFO L93 Difference]: Finished difference Result 1035 states and 1586 transitions. [2023-11-26 11:51:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:51:50,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 196 [2023-11-26 11:51:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:50,359 INFO L225 Difference]: With dead ends: 1035 [2023-11-26 11:51:50,359 INFO L226 Difference]: Without dead ends: 542 [2023-11-26 11:51:50,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:51:50,364 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 51 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:50,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3349 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:51:50,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-26 11:51:50,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 536. [2023-11-26 11:51:50,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 297 states have (on average 1.2525252525252526) internal successors, (372), 300 states have internal predecessors, (372), 201 states have call successors, (201), 35 states have call predecessors, (201), 36 states have return successors, (239), 200 states have call predecessors, (239), 199 states have call successors, (239) [2023-11-26 11:51:50,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 812 transitions. [2023-11-26 11:51:50,414 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 812 transitions. Word has length 196 [2023-11-26 11:51:50,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:50,415 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 812 transitions. [2023-11-26 11:51:50,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-26 11:51:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 812 transitions. [2023-11-26 11:51:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-26 11:51:50,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:50,419 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:50,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 11:51:50,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:50,622 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:50,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash 262777520, now seen corresponding path program 1 times [2023-11-26 11:51:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:50,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233322138] [2023-11-26 11:51:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:50,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:51:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038514819] [2023-11-26 11:51:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:50,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:50,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:50,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:50,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:51:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:51,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 2760 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:51:51,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-26 11:51:51,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:51,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:51,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233322138] [2023-11-26 11:51:51,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:51:51,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038514819] [2023-11-26 11:51:51,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038514819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:51,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:51,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:51:51,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797486541] [2023-11-26 11:51:51,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:51,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:51:51,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:51,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:51:51,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:51,645 INFO L87 Difference]: Start difference. First operand 536 states and 812 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-26 11:51:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:52,994 INFO L93 Difference]: Finished difference Result 1061 states and 1624 transitions. [2023-11-26 11:51:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:51:52,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 212 [2023-11-26 11:51:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:53,002 INFO L225 Difference]: With dead ends: 1061 [2023-11-26 11:51:53,003 INFO L226 Difference]: Without dead ends: 568 [2023-11-26 11:51:53,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:51:53,012 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 102 mSDsluCounter, 3750 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:53,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4402 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 11:51:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-26 11:51:53,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 536. [2023-11-26 11:51:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 297 states have (on average 1.2525252525252526) internal successors, (372), 300 states have internal predecessors, (372), 201 states have call successors, (201), 35 states have call predecessors, (201), 36 states have return successors, (239), 200 states have call predecessors, (239), 199 states have call successors, (239) [2023-11-26 11:51:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 812 transitions. [2023-11-26 11:51:53,072 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 812 transitions. Word has length 212 [2023-11-26 11:51:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:53,073 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 812 transitions. [2023-11-26 11:51:53,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-26 11:51:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 812 transitions. [2023-11-26 11:51:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-26 11:51:53,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:53,078 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:53,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:53,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:53,291 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:53,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 254227242, now seen corresponding path program 2 times [2023-11-26 11:51:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886768101] [2023-11-26 11:51:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:53,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:51:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563417622] [2023-11-26 11:51:53,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:51:53,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:53,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:53,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:53,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:51:54,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:51:54,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:54,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:51:54,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2023-11-26 11:51:54,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:54,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:54,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886768101] [2023-11-26 11:51:54,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:51:54,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563417622] [2023-11-26 11:51:54,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563417622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:54,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:54,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:51:54,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007289214] [2023-11-26 11:51:54,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:54,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:54,102 INFO L87 Difference]: Start difference. First operand 536 states and 812 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2023-11-26 11:51:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:54,568 INFO L93 Difference]: Finished difference Result 544 states and 820 transitions. [2023-11-26 11:51:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:54,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 225 [2023-11-26 11:51:54,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:54,576 INFO L225 Difference]: With dead ends: 544 [2023-11-26 11:51:54,576 INFO L226 Difference]: Without dead ends: 542 [2023-11-26 11:51:54,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:51:54,578 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 5 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:54,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3534 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:51:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-11-26 11:51:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 541. [2023-11-26 11:51:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 300 states have (on average 1.25) internal successors, (375), 303 states have internal predecessors, (375), 202 states have call successors, (202), 36 states have call predecessors, (202), 37 states have return successors, (240), 201 states have call predecessors, (240), 200 states have call successors, (240) [2023-11-26 11:51:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 817 transitions. [2023-11-26 11:51:54,626 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 817 transitions. Word has length 225 [2023-11-26 11:51:54,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:54,627 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 817 transitions. [2023-11-26 11:51:54,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2023-11-26 11:51:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 817 transitions. [2023-11-26 11:51:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-26 11:51:54,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:54,632 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:54,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:54,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:54,845 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:54,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1670879472, now seen corresponding path program 3 times [2023-11-26 11:51:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:54,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399903281] [2023-11-26 11:51:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:54,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:51:54,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76910036] [2023-11-26 11:51:54,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:51:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:54,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:54,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:51:55,960 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 11:51:55,960 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:55,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-26 11:51:55,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:56,138 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-26 11:51:56,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:56,531 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-11-26 11:51:56,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:56,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399903281] [2023-11-26 11:51:56,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:51:56,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76910036] [2023-11-26 11:51:56,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76910036] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:56,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:51:56,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-26 11:51:56,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163867114] [2023-11-26 11:51:56,533 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:56,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:51:56,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:56,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:51:56,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:56,536 INFO L87 Difference]: Start difference. First operand 541 states and 817 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-26 11:51:57,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:57,814 INFO L93 Difference]: Finished difference Result 1022 states and 1567 transitions. [2023-11-26 11:51:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:51:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) Word has length 238 [2023-11-26 11:51:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:57,822 INFO L225 Difference]: With dead ends: 1022 [2023-11-26 11:51:57,822 INFO L226 Difference]: Without dead ends: 548 [2023-11-26 11:51:57,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:51:57,827 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 35 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 3295 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:57,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 3295 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 11:51:57,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-11-26 11:51:57,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2023-11-26 11:51:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 303 states have (on average 1.2475247524752475) internal successors, (378), 305 states have internal predecessors, (378), 204 states have call successors, (204), 37 states have call predecessors, (204), 37 states have return successors, (242), 203 states have call predecessors, (242), 202 states have call successors, (242) [2023-11-26 11:51:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 824 transitions. [2023-11-26 11:51:57,875 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 824 transitions. Word has length 238 [2023-11-26 11:51:57,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:57,878 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 824 transitions. [2023-11-26 11:51:57,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-26 11:51:57,878 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 824 transitions. [2023-11-26 11:51:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-26 11:51:57,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:57,884 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:57,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:51:58,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:51:58,095 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:58,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:58,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1589105214, now seen corresponding path program 4 times [2023-11-26 11:51:58,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:58,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826271755] [2023-11-26 11:51:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:58,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:58,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:51:58,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390348564] [2023-11-26 11:51:58,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 11:51:58,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:51:58,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:58,225 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:51:58,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:51:58,806 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 11:51:58,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:51:58,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:51:58,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:58,921 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-26 11:51:58,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:58,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:58,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826271755] [2023-11-26 11:51:58,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:51:58,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390348564] [2023-11-26 11:51:58,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390348564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:58,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:51:58,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327205403] [2023-11-26 11:51:58,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:51:58,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:51:58,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:58,925 INFO L87 Difference]: Start difference. First operand 546 states and 824 transitions. Second operand has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-26 11:51:59,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:59,925 INFO L93 Difference]: Finished difference Result 1135 states and 1735 transitions. [2023-11-26 11:51:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:51:59,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) Word has length 251 [2023-11-26 11:51:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:59,934 INFO L225 Difference]: With dead ends: 1135 [2023-11-26 11:51:59,934 INFO L226 Difference]: Without dead ends: 650 [2023-11-26 11:51:59,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:51:59,939 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 123 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 4948 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:59,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 4948 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:51:59,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-26 11:51:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 642. [2023-11-26 11:51:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 368 states have (on average 1.2744565217391304) internal successors, (469), 372 states have internal predecessors, (469), 233 states have call successors, (233), 38 states have call predecessors, (233), 39 states have return successors, (285), 231 states have call predecessors, (285), 231 states have call successors, (285) [2023-11-26 11:51:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 987 transitions. [2023-11-26 11:51:59,991 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 987 transitions. Word has length 251 [2023-11-26 11:51:59,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,992 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 987 transitions. [2023-11-26 11:51:59,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.714285714285714) internal successors, (96), 8 states have internal predecessors, (96), 4 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-26 11:51:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 987 transitions. [2023-11-26 11:51:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-26 11:51:59,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,998 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:00,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:00,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:52:00,211 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:00,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1353649428, now seen corresponding path program 1 times [2023-11-26 11:52:00,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:00,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071770966] [2023-11-26 11:52:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:00,326 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:00,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947778856] [2023-11-26 11:52:00,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:00,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:00,328 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:00,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:52:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:01,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 3366 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:52:01,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-11-26 11:52:01,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:01,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071770966] [2023-11-26 11:52:01,391 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947778856] [2023-11-26 11:52:01,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947778856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:01,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:01,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:52:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342711247] [2023-11-26 11:52:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:01,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:52:01,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:01,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:52:01,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:01,396 INFO L87 Difference]: Start difference. First operand 642 states and 987 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-26 11:52:02,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:02,164 INFO L93 Difference]: Finished difference Result 1138 states and 1750 transitions. [2023-11-26 11:52:02,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:52:02,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) Word has length 272 [2023-11-26 11:52:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:02,171 INFO L225 Difference]: With dead ends: 1138 [2023-11-26 11:52:02,171 INFO L226 Difference]: Without dead ends: 551 [2023-11-26 11:52:02,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:02,177 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 143 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:02,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 4539 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:52:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-26 11:52:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-11-26 11:52:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 308 states have internal predecessors, (380), 204 states have call successors, (204), 37 states have call predecessors, (204), 38 states have return successors, (246), 203 states have call predecessors, (246), 202 states have call successors, (246) [2023-11-26 11:52:02,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 830 transitions. [2023-11-26 11:52:02,219 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 830 transitions. Word has length 272 [2023-11-26 11:52:02,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:02,219 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 830 transitions. [2023-11-26 11:52:02,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 5 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 5 states have call successors, (36) [2023-11-26 11:52:02,220 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 830 transitions. [2023-11-26 11:52:02,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-11-26 11:52:02,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:02,225 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:02,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:02,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 11:52:02,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:02,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1028667347, now seen corresponding path program 1 times [2023-11-26 11:52:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379603015] [2023-11-26 11:52:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:02,558 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:02,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648317135] [2023-11-26 11:52:02,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:02,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:02,560 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:02,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:52:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:03,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 3299 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:52:03,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 245 proven. 3 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-26 11:52:03,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2023-11-26 11:52:04,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:04,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379603015] [2023-11-26 11:52:04,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:04,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648317135] [2023-11-26 11:52:04,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648317135] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:04,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:52:04,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-26 11:52:04,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511779851] [2023-11-26 11:52:04,173 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:04,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:52:04,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:04,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:52:04,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:52:04,176 INFO L87 Difference]: Start difference. First operand 549 states and 830 transitions. Second operand has 14 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 9 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (64), 5 states have call predecessors, (64), 9 states have call successors, (64) [2023-11-26 11:52:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:05,704 INFO L93 Difference]: Finished difference Result 1062 states and 1616 transitions. [2023-11-26 11:52:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:52:05,706 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 9 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (64), 5 states have call predecessors, (64), 9 states have call successors, (64) Word has length 275 [2023-11-26 11:52:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:05,712 INFO L225 Difference]: With dead ends: 1062 [2023-11-26 11:52:05,712 INFO L226 Difference]: Without dead ends: 568 [2023-11-26 11:52:05,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 535 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:52:05,718 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 243 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:05,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 5536 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-26 11:52:05,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-11-26 11:52:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 562. [2023-11-26 11:52:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 317 states have (on average 1.252365930599369) internal successors, (397), 319 states have internal predecessors, (397), 205 states have call successors, (205), 37 states have call predecessors, (205), 38 states have return successors, (247), 205 states have call predecessors, (247), 203 states have call successors, (247) [2023-11-26 11:52:05,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 849 transitions. [2023-11-26 11:52:05,762 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 849 transitions. Word has length 275 [2023-11-26 11:52:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:05,762 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 849 transitions. [2023-11-26 11:52:05,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.083333333333334) internal successors, (133), 12 states have internal predecessors, (133), 9 states have call successors, (68), 4 states have call predecessors, (68), 4 states have return successors, (64), 5 states have call predecessors, (64), 9 states have call successors, (64) [2023-11-26 11:52:05,763 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 849 transitions. [2023-11-26 11:52:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-26 11:52:05,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:05,771 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:05,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:05,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:05,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:05,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:05,984 INFO L85 PathProgramCache]: Analyzing trace with hash -380987779, now seen corresponding path program 2 times [2023-11-26 11:52:05,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:05,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343477630] [2023-11-26 11:52:05,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:05,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:06,128 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:06,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827413728] [2023-11-26 11:52:06,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:52:06,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:06,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:06,134 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:06,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:52:07,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:52:07,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:07,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 3577 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:52:07,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:07,361 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-26 11:52:07,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:07,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343477630] [2023-11-26 11:52:07,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:07,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827413728] [2023-11-26 11:52:07,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827413728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:07,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:07,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:52:07,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144484427] [2023-11-26 11:52:07,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:07,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:52:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:07,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:52:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:52:07,367 INFO L87 Difference]: Start difference. First operand 562 states and 849 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 4 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-26 11:52:08,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:08,581 INFO L93 Difference]: Finished difference Result 1063 states and 1608 transitions. [2023-11-26 11:52:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:52:08,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 4 states have call predecessors, (35), 5 states have call successors, (35) Word has length 301 [2023-11-26 11:52:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:08,589 INFO L225 Difference]: With dead ends: 1063 [2023-11-26 11:52:08,589 INFO L226 Difference]: Without dead ends: 562 [2023-11-26 11:52:08,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:52:08,595 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 126 mSDsluCounter, 3716 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:08,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 4376 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:52:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-11-26 11:52:08,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2023-11-26 11:52:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 317 states have (on average 1.252365930599369) internal successors, (397), 319 states have internal predecessors, (397), 205 states have call successors, (205), 37 states have call predecessors, (205), 38 states have return successors, (244), 205 states have call predecessors, (244), 203 states have call successors, (244) [2023-11-26 11:52:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 846 transitions. [2023-11-26 11:52:08,649 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 846 transitions. Word has length 301 [2023-11-26 11:52:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:08,651 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 846 transitions. [2023-11-26 11:52:08,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (35), 4 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-26 11:52:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 846 transitions. [2023-11-26 11:52:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-26 11:52:08,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:08,656 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:08,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:08,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:52:08,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:08,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash -37651615, now seen corresponding path program 3 times [2023-11-26 11:52:08,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:08,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047628802] [2023-11-26 11:52:08,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:08,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:09,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:09,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67056154] [2023-11-26 11:52:09,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:52:09,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:09,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:09,038 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:09,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:52:10,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-26 11:52:10,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:52:10,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 2248 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:52:10,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2023-11-26 11:52:10,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:10,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047628802] [2023-11-26 11:52:10,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67056154] [2023-11-26 11:52:10,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67056154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:10,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:10,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:52:10,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866344789] [2023-11-26 11:52:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:10,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:52:10,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:52:10,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:52:10,853 INFO L87 Difference]: Start difference. First operand 562 states and 846 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-26 11:52:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:11,584 INFO L93 Difference]: Finished difference Result 1060 states and 1598 transitions. [2023-11-26 11:52:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:52:11,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) Word has length 301 [2023-11-26 11:52:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:11,592 INFO L225 Difference]: With dead ends: 1060 [2023-11-26 11:52:11,593 INFO L226 Difference]: Without dead ends: 562 [2023-11-26 11:52:11,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:11,599 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:11,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2602 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:52:11,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-11-26 11:52:11,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2023-11-26 11:52:11,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 317 states have (on average 1.249211356466877) internal successors, (396), 319 states have internal predecessors, (396), 205 states have call successors, (205), 37 states have call predecessors, (205), 38 states have return successors, (244), 205 states have call predecessors, (244), 203 states have call successors, (244) [2023-11-26 11:52:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 845 transitions. [2023-11-26 11:52:11,649 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 845 transitions. Word has length 301 [2023-11-26 11:52:11,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:11,650 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 845 transitions. [2023-11-26 11:52:11,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (35), 2 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-26 11:52:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 845 transitions. [2023-11-26 11:52:11,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-26 11:52:11,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:11,654 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:11,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:11,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:11,870 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:11,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash -716923869, now seen corresponding path program 1 times [2023-11-26 11:52:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:11,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633934824] [2023-11-26 11:52:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:11,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:11,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195631864] [2023-11-26 11:52:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:11,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:11,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:11,995 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:12,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:52:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:13,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 3580 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:52:13,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-26 11:52:13,334 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:13,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633934824] [2023-11-26 11:52:13,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:13,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195631864] [2023-11-26 11:52:13,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195631864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:13,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:13,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:52:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254852902] [2023-11-26 11:52:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:13,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 11:52:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:13,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 11:52:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:52:13,338 INFO L87 Difference]: Start difference. First operand 562 states and 845 transitions. Second operand has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) [2023-11-26 11:52:14,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:14,658 INFO L93 Difference]: Finished difference Result 1085 states and 1636 transitions. [2023-11-26 11:52:14,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:52:14,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) Word has length 301 [2023-11-26 11:52:14,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:14,666 INFO L225 Difference]: With dead ends: 1085 [2023-11-26 11:52:14,666 INFO L226 Difference]: Without dead ends: 578 [2023-11-26 11:52:14,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:52:14,672 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 192 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:14,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 5503 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-26 11:52:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-11-26 11:52:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 546. [2023-11-26 11:52:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 303 states have (on average 1.2442244224422443) internal successors, (377), 305 states have internal predecessors, (377), 204 states have call successors, (204), 37 states have call predecessors, (204), 37 states have return successors, (235), 203 states have call predecessors, (235), 202 states have call successors, (235) [2023-11-26 11:52:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 816 transitions. [2023-11-26 11:52:14,716 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 816 transitions. Word has length 301 [2023-11-26 11:52:14,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:14,717 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 816 transitions. [2023-11-26 11:52:14,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (37), 5 states have call predecessors, (37), 6 states have call successors, (37) [2023-11-26 11:52:14,717 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 816 transitions. [2023-11-26 11:52:14,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-11-26 11:52:14,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:14,720 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:14,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:14,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:14,933 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:14,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:14,934 INFO L85 PathProgramCache]: Analyzing trace with hash 757425583, now seen corresponding path program 1 times [2023-11-26 11:52:14,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:14,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183556335] [2023-11-26 11:52:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:15,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:52:15,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825131290] [2023-11-26 11:52:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:15,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:15,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:15,075 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:15,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d0ce262-a2bd-422b-bc8b-85b9e54c09cf/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:52:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:16,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 3719 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:52:16,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2023-11-26 11:52:16,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:52:16,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:16,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183556335] [2023-11-26 11:52:16,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:52:16,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825131290] [2023-11-26 11:52:16,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825131290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:16,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:16,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:52:16,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084508194] [2023-11-26 11:52:16,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:16,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:16,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:16,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:16,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:16,383 INFO L87 Difference]: Start difference. First operand 546 states and 816 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)