./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/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_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/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_02eac070-c1c9-4c97-857d-088ccbfe4317/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 2270fe5cc07251a3e14220516eaebb03f8e5cd298a28c4582f3a498662459431 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:43:43,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,225 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,258 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,262 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:43:43,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,275 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,276 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_02eac070-c1c9-4c97-857d-088ccbfe4317/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2270fe5cc07251a3e14220516eaebb03f8e5cd298a28c4582f3a498662459431 [2023-11-26 11:43:43,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:43,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:43,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:43,575 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:43,575 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:43,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-26 11:43:46,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i [2023-11-26 11:43:47,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/data/14ae021ce/0dbb3948d56c4dc68c5903cde4a08745/FLAG033dc43a0 [2023-11-26 11:43:47,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/data/14ae021ce/0dbb3948d56c4dc68c5903cde4a08745 [2023-11-26 11:43:47,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1d28bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:47,915 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_02eac070-c1c9-4c97-857d-088ccbfe4317/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-26 11:43:47,925 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_02eac070-c1c9-4c97-857d-088ccbfe4317/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-26 11:43:49,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,198 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,199 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,201 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,203 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,237 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,244 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,246 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,249 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,253 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,717 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:43:49,719 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:43:49,720 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:43:49,722 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:43:49,724 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:43:49,725 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:43:49,726 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:43:49,727 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:43:49,728 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:43:49,729 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:43:49,951 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:49,961 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,041 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,042 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,042 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,043 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,044 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,044 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,045 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,046 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,048 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,051 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,052 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,052 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,053 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,057 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,058 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,067 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,068 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,069 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:50,154 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:50,181 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_02eac070-c1c9-4c97-857d-088ccbfe4317/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4497,4510] [2023-11-26 11:43:50,195 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_02eac070-c1c9-4c97-857d-088ccbfe4317/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness_negated.i[4557,4570] [2023-11-26 11:43:50,235 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,235 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,236 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,236 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,237 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,246 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,246 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,248 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,248 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,250 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,251 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,252 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,299 WARN L638 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-26 11:43:50,300 WARN L638 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-26 11:43:50,302 WARN L638 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-26 11:43:50,303 WARN L638 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-26 11:43:50,304 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-26 11:43:50,305 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-26 11:43:50,306 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-26 11:43:50,307 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-26 11:43:50,307 WARN L638 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-26 11:43:50,308 WARN L638 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-26 11:43:50,355 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,363 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-26 11:43:50,400 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,402 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,402 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,402 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,403 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,404 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,404 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,404 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,405 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,405 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,406 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,407 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,408 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,411 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,411 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,419 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-26 11:43:50,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:50,749 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,749 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,750 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,750 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,750 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,750 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,751 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,752 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,752 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,752 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,753 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,753 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,754 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,754 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,754 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:43:50,763 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:50,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50 WrapperNode [2023-11-26 11:43:50,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:50,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:50,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:50,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:50,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:50,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,068 INFO L138 Inliner]: procedures = 696, calls = 1897, calls flagged for inlining = 59, calls inlined = 19, statements flattened = 1188 [2023-11-26 11:43:51,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:51,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:51,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:51,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:51,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,281 INFO L175 MemorySlicer]: Split 384 memory accesses to 7 slices as follows [2, 103, 236, 24, 7, 9, 3]. 61 percent of accesses are in the largest equivalence class. The 260 initializations are split as follows [2, 11, 236, 5, 2, 1, 3]. The 23 writes are split as follows [0, 13, 0, 8, 1, 1, 0]. [2023-11-26 11:43:51,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:51,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:51,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:51,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:51,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (1/1) ... [2023-11-26 11:43:51,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:51,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:51,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:51,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:51,498 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-26 11:43:51,498 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-26 11:43:51,498 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2023-11-26 11:43:51,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2023-11-26 11:43:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-26 11:43:51,499 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-26 11:43:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-26 11:43:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-26 11:43:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-26 11:43:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-26 11:43:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-26 11:43:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-26 11:43:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-26 11:43:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-26 11:43:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-26 11:43:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:43:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:43:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:43:51,503 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-26 11:43:51,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-26 11:43:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:43:51,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:43:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:51,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:43:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:43:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:43:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:43:51,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:43:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:43:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:43:51,507 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-26 11:43:51,507 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-26 11:43:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-26 11:43:51,511 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-26 11:43:51,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:51,512 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-26 11:43:51,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-26 11:43:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-11-26 11:43:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-11-26 11:43:51,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-26 11:43:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-26 11:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-26 11:43:51,520 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-26 11:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-26 11:43:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-26 11:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2023-11-26 11:43:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2023-11-26 11:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-26 11:43:51,522 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-26 11:43:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:43:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:43:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:43:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:43:51,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-26 11:43:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-26 11:43:51,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-26 11:43:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:43:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:43:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:43:51,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:43:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-26 11:43:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-26 11:43:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-26 11:43:51,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:43:51,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:43:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-26 11:43:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-26 11:43:51,525 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-26 11:43:51,525 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-26 11:43:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-26 11:43:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-26 11:43:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-26 11:43:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-26 11:43:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:43:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:43:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:43:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:43:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:43:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:43:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:43:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:43:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:43:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-26 11:43:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-26 11:43:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-26 11:43:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-26 11:43:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-26 11:43:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-26 11:43:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-26 11:43:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:43:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:43:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:43:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-26 11:43:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-26 11:43:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2023-11-26 11:43:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2023-11-26 11:43:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-26 11:43:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-26 11:43:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:43:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-26 11:43:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:43:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:43:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:43:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:43:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:43:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:43:52,032 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:52,045 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:53,719 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:53,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:53,860 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 11:43:53,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:53 BoogieIcfgContainer [2023-11-26 11:43:53,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:53,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:53,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:53,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:53,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:53,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197860c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:53, skipping insertion in model container [2023-11-26 11:43:53,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:50" (2/3) ... [2023-11-26 11:43:53,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197860c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:53, skipping insertion in model container [2023-11-26 11:43:53,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:53" (3/3) ... [2023-11-26 11:43:53,873 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness_negated.i [2023-11-26 11:43:53,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:53,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:43:53,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:53,988 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;@7d5645bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:53,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 11:43:53,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 521 states, 283 states have (on average 1.2720848056537102) internal successors, (360), 286 states have internal predecessors, (360), 202 states have call successors, (202), 34 states have call predecessors, (202), 34 states have return successors, (202), 202 states have call predecessors, (202), 202 states have call successors, (202) [2023-11-26 11:43:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-26 11:43:54,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:54,020 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:54,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:43:54,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash -782464069, now seen corresponding path program 1 times [2023-11-26 11:43:54,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248778277] [2023-11-26 11:43:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:43:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:43:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:43:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:43:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:43:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:43:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:43:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:43:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:43:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:43:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:43:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:43:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:43:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:43:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:43:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:43:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:43:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:43:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:43:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:43:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 11:43:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:43:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:43:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:43:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 11:43:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-26 11:43:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-26 11:43:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-26 11:43:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-26 11:43:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-26 11:43:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-26 11:43:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-26 11:43:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,429 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-11-26 11:43:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248778277] [2023-11-26 11:43:55,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248778277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:55,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352899974] [2023-11-26 11:43:55,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:55,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:55,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:55,503 INFO L87 Difference]: Start difference. First operand has 521 states, 283 states have (on average 1.2720848056537102) internal successors, (360), 286 states have internal predecessors, (360), 202 states have call successors, (202), 34 states have call predecessors, (202), 34 states have return successors, (202), 202 states have call predecessors, (202), 202 states have call successors, (202) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:43:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:59,906 INFO L93 Difference]: Finished difference Result 1173 states and 1983 transitions. [2023-11-26 11:43:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:43:59,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 182 [2023-11-26 11:43:59,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:59,946 INFO L225 Difference]: With dead ends: 1173 [2023-11-26 11:43:59,946 INFO L226 Difference]: Without dead ends: 672 [2023-11-26 11:43:59,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:59,966 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 307 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:59,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1135 Invalid, 1806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [627 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-26 11:43:59,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-11-26 11:44:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 518. [2023-11-26 11:44:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 281 states have (on average 1.2491103202846976) internal successors, (351), 283 states have internal predecessors, (351), 202 states have call successors, (202), 34 states have call predecessors, (202), 33 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2023-11-26 11:44:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 753 transitions. [2023-11-26 11:44:00,122 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 753 transitions. Word has length 182 [2023-11-26 11:44:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:00,123 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 753 transitions. [2023-11-26 11:44:00,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-26 11:44:00,123 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 753 transitions. [2023-11-26 11:44:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-26 11:44:00,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:00,129 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:00,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:00,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:00,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:00,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1346787397, now seen corresponding path program 1 times [2023-11-26 11:44:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:00,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84132360] [2023-11-26 11:44:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:44:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:44:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:44:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:44:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:44:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:44:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:44:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-26 11:44:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-26 11:44:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-26 11:44:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-26 11:44:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-26 11:44:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-26 11:44:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-26 11:44:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-26 11:44:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-26 11:44:01,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-26 11:44:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-26 11:44:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-26 11:44:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-26 11:44:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-26 11:44:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-26 11:44:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-26 11:44:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2023-11-26 11:44:01,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84132360] [2023-11-26 11:44:01,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84132360] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:01,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447919434] [2023-11-26 11:44:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:01,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:01,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:01,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:44:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:44:02,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-26 11:44:02,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:02,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447919434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:02,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-26 11:44:02,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233480444] [2023-11-26 11:44:02,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:02,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:02,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:44:02,297 INFO L87 Difference]: Start difference. First operand 518 states and 753 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-26 11:44:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:02,749 INFO L93 Difference]: Finished difference Result 995 states and 1459 transitions. [2023-11-26 11:44:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 182 [2023-11-26 11:44:02,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:02,756 INFO L225 Difference]: With dead ends: 995 [2023-11-26 11:44:02,757 INFO L226 Difference]: Without dead ends: 520 [2023-11-26 11:44:02,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 241 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 11:44:02,762 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 83 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:02,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2648 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:44:02,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-11-26 11:44:02,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2023-11-26 11:44:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 282 states have (on average 1.24822695035461) internal successors, (352), 285 states have internal predecessors, (352), 202 states have call successors, (202), 34 states have call predecessors, (202), 34 states have return successors, (210), 200 states have call predecessors, (210), 200 states have call successors, (210) [2023-11-26 11:44:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 764 transitions. [2023-11-26 11:44:02,827 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 764 transitions. Word has length 182 [2023-11-26 11:44:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:02,828 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 764 transitions. [2023-11-26 11:44:02,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-26 11:44:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 764 transitions. [2023-11-26 11:44:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-26 11:44:02,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:02,832 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 4, 4, 4, 3, 3, 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 11:44:02,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:44:03,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:03,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:03,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1022191685, now seen corresponding path program 1 times [2023-11-26 11:44:03,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:03,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983894906] [2023-11-26 11:44:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:03,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:44:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-26 11:44:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:44:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:44:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:44:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 11:44:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:44:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:44:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:44:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-26 11:44:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 11:44:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:44:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-26 11:44:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:44:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-26 11:44:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-26 11:44:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 11:44:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-26 11:44:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-26 11:44:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-26 11:44:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-26 11:44:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-26 11:44:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-26 11:44:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-26 11:44:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-26 11:44:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-26 11:44:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-26 11:44:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-26 11:44:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,239 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-11-26 11:44:04,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:04,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983894906] [2023-11-26 11:44:04,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983894906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:04,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160773340] [2023-11-26 11:44:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:04,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:04,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:04,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:04,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:44:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 2552 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:44:04,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-26 11:44:05,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:05,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160773340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:05,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:05,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-26 11:44:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740989661] [2023-11-26 11:44:05,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:05,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:05,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:05,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:05,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:44:05,160 INFO L87 Difference]: Start difference. First operand 520 states and 764 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-26 11:44:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:06,175 INFO L93 Difference]: Finished difference Result 1018 states and 1539 transitions. [2023-11-26 11:44:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:06,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 190 [2023-11-26 11:44:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:06,182 INFO L225 Difference]: With dead ends: 1018 [2023-11-26 11:44:06,183 INFO L226 Difference]: Without dead ends: 541 [2023-11-26 11:44:06,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 248 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 11:44:06,187 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 133 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:06,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 3765 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:44:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-11-26 11:44:06,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2023-11-26 11:44:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 298 states have (on average 1.25503355704698) internal successors, (374), 301 states have internal predecessors, (374), 204 states have call successors, (204), 34 states have call predecessors, (204), 35 states have return successors, (244), 203 states have call predecessors, (244), 202 states have call successors, (244) [2023-11-26 11:44:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 822 transitions. [2023-11-26 11:44:06,273 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 822 transitions. Word has length 190 [2023-11-26 11:44:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:06,274 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 822 transitions. [2023-11-26 11:44:06,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-26 11:44:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 822 transitions. [2023-11-26 11:44:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-26 11:44:06,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:06,279 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 4, 4, 3, 3, 3, 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] [2023-11-26 11:44:06,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:44:06,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:06,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:06,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash -172747958, now seen corresponding path program 1 times [2023-11-26 11:44:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442793621] [2023-11-26 11:44:06,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:06,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:06,597 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:06,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [633480092] [2023-11-26 11:44:06,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:06,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:06,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:06,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:06,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:44:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:07,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:44:07,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-11-26 11:44:07,485 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:07,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442793621] [2023-11-26 11:44:07,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:07,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633480092] [2023-11-26 11:44:07,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633480092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:07,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:07,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:44:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537117574] [2023-11-26 11:44:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:07,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:07,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:07,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:07,488 INFO L87 Difference]: Start difference. First operand 539 states and 822 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-26 11:44:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:08,037 INFO L93 Difference]: Finished difference Result 1041 states and 1610 transitions. [2023-11-26 11:44:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:08,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 203 [2023-11-26 11:44:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:08,044 INFO L225 Difference]: With dead ends: 1041 [2023-11-26 11:44:08,044 INFO L226 Difference]: Without dead ends: 545 [2023-11-26 11:44:08,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 198 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 11:44:08,050 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 102 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:08,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3290 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:44:08,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-11-26 11:44:08,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2023-11-26 11:44:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 298 states have (on average 1.25503355704698) internal successors, (374), 301 states have internal predecessors, (374), 204 states have call successors, (204), 34 states have call predecessors, (204), 35 states have return successors, (244), 203 states have call predecessors, (244), 202 states have call successors, (244) [2023-11-26 11:44:08,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 822 transitions. [2023-11-26 11:44:08,150 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 822 transitions. Word has length 203 [2023-11-26 11:44:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:08,151 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 822 transitions. [2023-11-26 11:44:08,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-26 11:44:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 822 transitions. [2023-11-26 11:44:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-26 11:44:08,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:08,159 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:08,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:08,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:08,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:08,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:08,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1491319321, now seen corresponding path program 1 times [2023-11-26 11:44:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:08,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870452826] [2023-11-26 11:44:08,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:08,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:08,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559944377] [2023-11-26 11:44:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:08,515 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:08,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:44:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:44:09,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-11-26 11:44:09,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:09,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:09,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870452826] [2023-11-26 11:44:09,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:09,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559944377] [2023-11-26 11:44:09,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559944377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:09,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:09,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 11:44:09,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944166116] [2023-11-26 11:44:09,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:09,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:44:09,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:09,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:44:09,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:44:09,449 INFO L87 Difference]: Start difference. First operand 539 states and 822 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-26 11:44:10,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:10,676 INFO L93 Difference]: Finished difference Result 1067 states and 1648 transitions. [2023-11-26 11:44:10,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:10,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) Word has length 219 [2023-11-26 11:44:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:10,685 INFO L225 Difference]: With dead ends: 1067 [2023-11-26 11:44:10,685 INFO L226 Difference]: Without dead ends: 571 [2023-11-26 11:44:10,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 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 11:44:10,691 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 153 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 4354 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:10,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 4354 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-26 11:44:10,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-26 11:44:10,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 539. [2023-11-26 11:44:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 298 states have (on average 1.25503355704698) internal successors, (374), 301 states have internal predecessors, (374), 204 states have call successors, (204), 34 states have call predecessors, (204), 35 states have return successors, (244), 203 states have call predecessors, (244), 202 states have call successors, (244) [2023-11-26 11:44:10,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 822 transitions. [2023-11-26 11:44:10,756 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 822 transitions. Word has length 219 [2023-11-26 11:44:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:10,758 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 822 transitions. [2023-11-26 11:44:10,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2023-11-26 11:44:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 822 transitions. [2023-11-26 11:44:10,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-26 11:44:10,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:10,764 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:10,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:10,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:10,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:10,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash 734690736, now seen corresponding path program 2 times [2023-11-26 11:44:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453848015] [2023-11-26 11:44:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:11,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669856637] [2023-11-26 11:44:11,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:44:11,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:11,108 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:11,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:44:11,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:44:11,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:11,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:44:11,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2023-11-26 11:44:11,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:11,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:11,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453848015] [2023-11-26 11:44:11,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:11,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669856637] [2023-11-26 11:44:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669856637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:11,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:44:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844440067] [2023-11-26 11:44:11,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:11,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:11,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:11,781 INFO L87 Difference]: Start difference. First operand 539 states and 822 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2023-11-26 11:44:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:12,208 INFO L93 Difference]: Finished difference Result 547 states and 830 transitions. [2023-11-26 11:44:12,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:12,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 232 [2023-11-26 11:44:12,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:12,215 INFO L225 Difference]: With dead ends: 547 [2023-11-26 11:44:12,216 INFO L226 Difference]: Without dead ends: 545 [2023-11-26 11:44:12,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 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 11:44:12,217 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 5 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3568 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:12,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3568 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:44:12,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-11-26 11:44:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 544. [2023-11-26 11:44:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 301 states have (on average 1.2524916943521596) internal successors, (377), 304 states have internal predecessors, (377), 205 states have call successors, (205), 35 states have call predecessors, (205), 36 states have return successors, (245), 204 states have call predecessors, (245), 203 states have call successors, (245) [2023-11-26 11:44:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 827 transitions. [2023-11-26 11:44:12,278 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 827 transitions. Word has length 232 [2023-11-26 11:44:12,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:12,279 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 827 transitions. [2023-11-26 11:44:12,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2023-11-26 11:44:12,279 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 827 transitions. [2023-11-26 11:44:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-26 11:44:12,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:12,284 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:12,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:12,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:12,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:12,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1442904999, now seen corresponding path program 3 times [2023-11-26 11:44:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125556428] [2023-11-26 11:44:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442002403] [2023-11-26 11:44:12,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:44:12,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:12,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:12,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:12,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:44:13,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 11:44:13,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:13,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-26 11:44:13,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:13,935 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-11-26 11:44:13,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2023-11-26 11:44:14,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125556428] [2023-11-26 11:44:14,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442002403] [2023-11-26 11:44:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442002403] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:14,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:44:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-26 11:44:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824775404] [2023-11-26 11:44:14,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:44:14,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:44:14,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:44:14,262 INFO L87 Difference]: Start difference. First operand 544 states and 827 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2023-11-26 11:44:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:15,124 INFO L93 Difference]: Finished difference Result 1026 states and 1581 transitions. [2023-11-26 11:44:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:15,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) Word has length 245 [2023-11-26 11:44:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:15,131 INFO L225 Difference]: With dead ends: 1026 [2023-11-26 11:44:15,131 INFO L226 Difference]: Without dead ends: 551 [2023-11-26 11:44:15,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 483 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 11:44:15,137 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 40 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:15,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2673 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:44:15,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-26 11:44:15,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-11-26 11:44:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 304 states have (on average 1.25) internal successors, (380), 306 states have internal predecessors, (380), 207 states have call successors, (207), 36 states have call predecessors, (207), 36 states have return successors, (247), 206 states have call predecessors, (247), 205 states have call successors, (247) [2023-11-26 11:44:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 834 transitions. [2023-11-26 11:44:15,193 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 834 transitions. Word has length 245 [2023-11-26 11:44:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:15,194 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 834 transitions. [2023-11-26 11:44:15,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (36), 4 states have call predecessors, (36), 3 states have call successors, (36) [2023-11-26 11:44:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 834 transitions. [2023-11-26 11:44:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-26 11:44:15,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:15,199 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:15,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:15,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:15,411 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:15,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash 980831346, now seen corresponding path program 4 times [2023-11-26 11:44:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:15,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564923855] [2023-11-26 11:44:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:15,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377236686] [2023-11-26 11:44:15,522 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-26 11:44:15,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:15,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:15,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:15,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:44:16,055 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-26 11:44:16,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:16,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:44:16,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 229 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-11-26 11:44:16,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2023-11-26 11:44:16,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564923855] [2023-11-26 11:44:16,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377236686] [2023-11-26 11:44:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377236686] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:16,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:44:16,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-26 11:44:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642479970] [2023-11-26 11:44:16,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 11:44:16,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:16,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:44:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:44:16,499 INFO L87 Difference]: Start difference. First operand 549 states and 834 transitions. Second operand has 15 states, 13 states have (on average 8.384615384615385) internal successors, (109), 15 states have internal predecessors, (109), 8 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (50), 6 states have call predecessors, (50), 8 states have call successors, (50) [2023-11-26 11:44:18,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:18,409 INFO L93 Difference]: Finished difference Result 1209 states and 1875 transitions. [2023-11-26 11:44:18,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:44:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.384615384615385) internal successors, (109), 15 states have internal predecessors, (109), 8 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (50), 6 states have call predecessors, (50), 8 states have call successors, (50) Word has length 258 [2023-11-26 11:44:18,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:18,421 INFO L225 Difference]: With dead ends: 1209 [2023-11-26 11:44:18,421 INFO L226 Difference]: Without dead ends: 723 [2023-11-26 11:44:18,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 502 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:44:18,427 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 270 mSDsluCounter, 5987 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 6774 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:18,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 6774 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-26 11:44:18,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-26 11:44:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 714. [2023-11-26 11:44:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 407 states have (on average 1.285012285012285) internal successors, (523), 411 states have internal predecessors, (523), 267 states have call successors, (267), 37 states have call predecessors, (267), 38 states have return successors, (328), 265 states have call predecessors, (328), 265 states have call successors, (328) [2023-11-26 11:44:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1118 transitions. [2023-11-26 11:44:18,508 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1118 transitions. Word has length 258 [2023-11-26 11:44:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:18,509 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 1118 transitions. [2023-11-26 11:44:18,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.384615384615385) internal successors, (109), 15 states have internal predecessors, (109), 8 states have call successors, (51), 2 states have call predecessors, (51), 5 states have return successors, (50), 6 states have call predecessors, (50), 8 states have call successors, (50) [2023-11-26 11:44:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1118 transitions. [2023-11-26 11:44:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-26 11:44:18,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:18,516 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:18,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:18,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:18,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:18,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1192224938, now seen corresponding path program 1 times [2023-11-26 11:44:18,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:18,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347881555] [2023-11-26 11:44:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:18,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363152485] [2023-11-26 11:44:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:18,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:18,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:18,918 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:18,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:44:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 3508 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:44:19,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-26 11:44:20,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:20,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:20,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347881555] [2023-11-26 11:44:20,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:20,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363152485] [2023-11-26 11:44:20,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363152485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:20,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568337999] [2023-11-26 11:44:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:20,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:20,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:20,067 INFO L87 Difference]: Start difference. First operand 714 states and 1118 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 4 states have call predecessors, (38), 5 states have call successors, (38) [2023-11-26 11:44:20,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:20,849 INFO L93 Difference]: Finished difference Result 1314 states and 2059 transitions. [2023-11-26 11:44:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:44:20,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 4 states have call predecessors, (38), 5 states have call successors, (38) Word has length 292 [2023-11-26 11:44:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:20,857 INFO L225 Difference]: With dead ends: 1314 [2023-11-26 11:44:20,858 INFO L226 Difference]: Without dead ends: 651 [2023-11-26 11:44:20,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:44:20,866 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 151 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:20,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3896 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:44:20,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-11-26 11:44:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 632. [2023-11-26 11:44:20,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 357 states have (on average 1.26890756302521) internal successors, (453), 363 states have internal predecessors, (453), 234 states have call successors, (234), 37 states have call predecessors, (234), 39 states have return successors, (295), 231 states have call predecessors, (295), 232 states have call successors, (295) [2023-11-26 11:44:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 982 transitions. [2023-11-26 11:44:20,932 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 982 transitions. Word has length 292 [2023-11-26 11:44:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 982 transitions. [2023-11-26 11:44:20,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 4 states have call predecessors, (38), 5 states have call successors, (38) [2023-11-26 11:44:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 982 transitions. [2023-11-26 11:44:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-11-26 11:44:20,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:20,939 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:20,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:21,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:21,152 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:21,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash 262783550, now seen corresponding path program 1 times [2023-11-26 11:44:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:21,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598477058] [2023-11-26 11:44:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:21,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:21,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820649844] [2023-11-26 11:44:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:21,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:21,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:21,318 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:21,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:44:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:22,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 3719 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:44:22,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-11-26 11:44:22,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:22,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:22,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598477058] [2023-11-26 11:44:22,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:22,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820649844] [2023-11-26 11:44:22,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820649844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:22,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:22,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:44:22,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983495862] [2023-11-26 11:44:22,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:22,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:22,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:22,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:22,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:44:22,432 INFO L87 Difference]: Start difference. First operand 632 states and 982 transitions. Second operand has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 5 states have call successors, (37) [2023-11-26 11:44:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:23,166 INFO L93 Difference]: Finished difference Result 1074 states and 1644 transitions. [2023-11-26 11:44:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:23,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 5 states have call successors, (37) Word has length 321 [2023-11-26 11:44:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:23,173 INFO L225 Difference]: With dead ends: 1074 [2023-11-26 11:44:23,173 INFO L226 Difference]: Without dead ends: 554 [2023-11-26 11:44:23,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:44:23,177 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 177 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:23,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 3871 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:44:23,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-26 11:44:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2023-11-26 11:44:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 307 states have (on average 1.247557003257329) internal successors, (383), 311 states have internal predecessors, (383), 207 states have call successors, (207), 36 states have call predecessors, (207), 38 states have return successors, (259), 206 states have call predecessors, (259), 205 states have call successors, (259) [2023-11-26 11:44:23,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 849 transitions. [2023-11-26 11:44:23,229 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 849 transitions. Word has length 321 [2023-11-26 11:44:23,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:23,230 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 849 transitions. [2023-11-26 11:44:23,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.666666666666666) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (37), 4 states have call predecessors, (37), 5 states have call successors, (37) [2023-11-26 11:44:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 849 transitions. [2023-11-26 11:44:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-26 11:44:23,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:23,236 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:23,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:23,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:44:23,458 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:23,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:23,458 INFO L85 PathProgramCache]: Analyzing trace with hash 260189891, now seen corresponding path program 1 times [2023-11-26 11:44:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935901483] [2023-11-26 11:44:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:23,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:23,567 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:23,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [380486914] [2023-11-26 11:44:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:23,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:23,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:23,569 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:23,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:44:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:24,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:44:24,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:24,637 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 317 proven. 3 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-11-26 11:44:24,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 25 proven. 22 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2023-11-26 11:44:25,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935901483] [2023-11-26 11:44:25,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:25,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380486914] [2023-11-26 11:44:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380486914] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:25,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:44:25,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-26 11:44:25,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029230624] [2023-11-26 11:44:25,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:25,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:44:25,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:44:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:44:25,077 INFO L87 Difference]: Start difference. First operand 554 states and 849 transitions. Second operand has 12 states, 10 states have (on average 13.9) internal successors, (139), 12 states have internal predecessors, (139), 9 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (69), 5 states have call predecessors, (69), 9 states have call successors, (69) [2023-11-26 11:44:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:26,082 INFO L93 Difference]: Finished difference Result 1076 states and 1665 transitions. [2023-11-26 11:44:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:44:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.9) internal successors, (139), 12 states have internal predecessors, (139), 9 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (69), 5 states have call predecessors, (69), 9 states have call successors, (69) Word has length 290 [2023-11-26 11:44:26,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:26,091 INFO L225 Difference]: With dead ends: 1076 [2023-11-26 11:44:26,091 INFO L226 Difference]: Without dead ends: 573 [2023-11-26 11:44:26,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 567 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:44:26,096 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 297 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3791 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:26,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 3791 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:44:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-26 11:44:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 567. [2023-11-26 11:44:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 319 states have (on average 1.2539184952978057) internal successors, (400), 322 states have internal predecessors, (400), 208 states have call successors, (208), 36 states have call predecessors, (208), 38 states have return successors, (260), 208 states have call predecessors, (260), 206 states have call successors, (260) [2023-11-26 11:44:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 868 transitions. [2023-11-26 11:44:26,154 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 868 transitions. Word has length 290 [2023-11-26 11:44:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:26,154 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 868 transitions. [2023-11-26 11:44:26,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.9) internal successors, (139), 12 states have internal predecessors, (139), 9 states have call successors, (71), 2 states have call predecessors, (71), 4 states have return successors, (69), 5 states have call predecessors, (69), 9 states have call successors, (69) [2023-11-26 11:44:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 868 transitions. [2023-11-26 11:44:26,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-11-26 11:44:26,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:26,158 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:26,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:26,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:44:26,371 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:26,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:26,372 INFO L85 PathProgramCache]: Analyzing trace with hash 127380989, now seen corresponding path program 2 times [2023-11-26 11:44:26,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:26,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790576516] [2023-11-26 11:44:26,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:26,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:26,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:26,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364141722] [2023-11-26 11:44:26,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:44:26,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:26,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:26,554 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:26,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:44:27,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:44:27,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:27,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 3630 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:44:27,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-26 11:44:28,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:28,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:28,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790576516] [2023-11-26 11:44:28,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:28,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364141722] [2023-11-26 11:44:28,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364141722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:28,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:28,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 11:44:28,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657845382] [2023-11-26 11:44:28,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:28,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:44:28,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:44:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:44:28,110 INFO L87 Difference]: Start difference. First operand 567 states and 868 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2023-11-26 11:44:29,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:29,251 INFO L93 Difference]: Finished difference Result 1099 states and 1691 transitions. [2023-11-26 11:44:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:44:29,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) Word has length 316 [2023-11-26 11:44:29,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:29,259 INFO L225 Difference]: With dead ends: 1099 [2023-11-26 11:44:29,259 INFO L226 Difference]: Without dead ends: 583 [2023-11-26 11:44:29,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:44:29,264 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 202 mSDsluCounter, 4269 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 4923 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:29,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 4923 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:44:29,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-26 11:44:29,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 551. [2023-11-26 11:44:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 308 states have internal predecessors, (381), 207 states have call successors, (207), 36 states have call predecessors, (207), 37 states have return successors, (249), 206 states have call predecessors, (249), 205 states have call successors, (249) [2023-11-26 11:44:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 837 transitions. [2023-11-26 11:44:29,319 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 837 transitions. Word has length 316 [2023-11-26 11:44:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:29,319 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 837 transitions. [2023-11-26 11:44:29,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 9 states have internal predecessors, (118), 6 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2023-11-26 11:44:29,320 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 837 transitions. [2023-11-26 11:44:29,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-11-26 11:44:29,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:29,323 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:29,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:29,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:44:29,537 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:29,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:29,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1654449086, now seen corresponding path program 3 times [2023-11-26 11:44:29,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:29,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212388050] [2023-11-26 11:44:29,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:29,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:29,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:29,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516777841] [2023-11-26 11:44:29,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:44:29,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:29,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:29,709 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:29,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02eac070-c1c9-4c97-857d-088ccbfe4317/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process