./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 fe7c8437c4e8e4a9eba5347957f7f909106bcd2e8ac9c6d24986782964465428 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 08:59:38,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 08:59:38,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 08:59:38,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 08:59:38,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 08:59:38,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 08:59:38,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 08:59:38,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 08:59:38,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 08:59:38,980 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 08:59:38,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 08:59:38,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 08:59:38,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 08:59:38,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 08:59:38,983 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 08:59:38,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 08:59:38,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 08:59:38,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 08:59:38,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 08:59:38,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 08:59:38,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 08:59:38,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 08:59:38,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 08:59:38,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 08:59:38,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 08:59:38,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 08:59:38,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 08:59:38,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 08:59:38,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:59:38,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 08:59:38,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 08:59:38,989 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 08:59:38,989 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 08:59:38,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 08:59:38,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 08:59:38,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 08:59:38,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 08:59:38,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 08:59:38,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 08:59:38,998 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7c8437c4e8e4a9eba5347957f7f909106bcd2e8ac9c6d24986782964465428 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 08:59:39,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 08:59:39,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 08:59:39,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 08:59:39,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 08:59:39,315 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 08:59:39,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-23 08:59:40,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 08:59:40,999 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 08:59:41,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i [2023-11-23 08:59:41,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c456d9cb/9fc0620529cd467b9c55d0b9e4ebe3ef/FLAGa756dad91 [2023-11-23 08:59:41,050 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c456d9cb/9fc0620529cd467b9c55d0b9e4ebe3ef [2023-11-23 08:59:41,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 08:59:41,054 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 08:59:41,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 08:59:41,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 08:59:41,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 08:59:41,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:59:41" (1/1) ... [2023-11-23 08:59:41,063 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbcb9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:41, skipping insertion in model container [2023-11-23 08:59:41,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:59:41" (1/1) ... [2023-11-23 08:59:41,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 08:59:41,388 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-11-23 08:59:41,397 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-11-23 08:59:42,226 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,227 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,249 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,250 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,253 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,257 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,556 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:59:42,558 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:59:42,559 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:59:42,560 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:59:42,561 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:59:42,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:59:42,562 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:59:42,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:59:42,563 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:59:42,564 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:59:42,847 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,855 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,932 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,933 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,934 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,972 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,978 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:42,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,037 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,038 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,038 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:59:43,110 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 08:59:43,137 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i[4496,4509] [2023-11-23 08:59:43,138 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_pop_harness_negated.i[4556,4569] [2023-11-23 08:59:43,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,208 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,209 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,210 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,210 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,211 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,212 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,212 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,292 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:59:43,295 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:59:43,296 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:59:43,297 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:59:43,298 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:59:43,298 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:59:43,299 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:59:43,299 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:59:43,299 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:59:43,300 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:59:43,343 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,347 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7739-7750] [2023-11-23 08:59:43,370 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,371 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,371 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,371 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,372 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,372 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,373 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,375 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,375 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,378 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,386 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,387 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,388 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:59:43,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:59:43,577 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,578 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,578 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,578 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,578 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,579 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,579 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,580 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,580 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,580 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,580 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,581 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,581 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,581 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,581 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:59:43,589 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:59:43,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43 WrapperNode [2023-11-23 08:59:43,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:59:43,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:59:43,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:59:43,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:59:43,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,838 INFO L138 Inliner]: procedures = 696, calls = 1919, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1036 [2023-11-23 08:59:43,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:59:43,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:59:43,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:59:43,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:59:43,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:43,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:44,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:59:44,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:59:44,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:59:44,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:59:44,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (1/1) ... [2023-11-23 08:59:44,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:59:44,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:44,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 08:59:44,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 08:59:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 08:59:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 08:59:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 08:59:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 08:59:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:59:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 08:59:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 08:59:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 08:59:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 08:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 08:59:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 08:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 08:59:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 08:59:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 08:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 08:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 08:59:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 08:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:59:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:59:44,106 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2023-11-23 08:59:44,106 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2023-11-23 08:59:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:59:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:59:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:59:44,107 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 08:59:44,107 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 08:59:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 08:59:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 08:59:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:59:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:59:44,108 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 08:59:44,108 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 08:59:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 08:59:44,109 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 08:59:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 08:59:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 08:59:44,109 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 08:59:44,109 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 08:59:44,110 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 08:59:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 08:59:44,113 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 08:59:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 08:59:44,113 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 08:59:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:59:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:59:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 08:59:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 08:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2023-11-23 08:59:44,115 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2023-11-23 08:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:59:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:59:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:59:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 08:59:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 08:59:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 08:59:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 08:59:44,121 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 08:59:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 08:59:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 08:59:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 08:59:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 08:59:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 08:59:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 08:59:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 08:59:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 08:59:44,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:59:44,123 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2023-11-23 08:59:44,123 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2023-11-23 08:59:44,464 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:59:44,467 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:59:46,088 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:59:46,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:59:46,184 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 08:59:46,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:59:46 BoogieIcfgContainer [2023-11-23 08:59:46,185 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:59:46,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:59:46,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:59:46,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:59:46,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:59:41" (1/3) ... [2023-11-23 08:59:46,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588d6c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:59:46, skipping insertion in model container [2023-11-23 08:59:46,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:59:43" (2/3) ... [2023-11-23 08:59:46,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588d6c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:59:46, skipping insertion in model container [2023-11-23 08:59:46,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:59:46" (3/3) ... [2023-11-23 08:59:46,196 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_pop_harness_negated.i [2023-11-23 08:59:46,212 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:59:46,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 08:59:46,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:59:46,290 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;@715335a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:59:46,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 08:59:46,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 226 states have (on average 1.2876106194690264) internal successors, (291), 229 states have internal predecessors, (291), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2023-11-23 08:59:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 08:59:46,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:46,313 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 08:59:46,313 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:46,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:46,318 INFO L85 PathProgramCache]: Analyzing trace with hash -126308937, now seen corresponding path program 1 times [2023-11-23 08:59:46,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:46,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343455861] [2023-11-23 08:59:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 08:59:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 08:59:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 08:59:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 08:59:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 08:59:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 08:59:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 08:59:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 08:59:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 08:59:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 08:59:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2023-11-23 08:59:47,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:47,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343455861] [2023-11-23 08:59:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343455861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 08:59:47,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692284816] [2023-11-23 08:59:47,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:47,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:59:47,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:47,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:59:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:59:47,200 INFO L87 Difference]: Start difference. First operand has 411 states, 226 states have (on average 1.2876106194690264) internal successors, (291), 229 states have internal predecessors, (291), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 08:59:49,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:49,690 INFO L93 Difference]: Finished difference Result 989 states and 1724 transitions. [2023-11-23 08:59:49,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:59:49,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2023-11-23 08:59:49,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:49,722 INFO L225 Difference]: With dead ends: 989 [2023-11-23 08:59:49,722 INFO L226 Difference]: Without dead ends: 584 [2023-11-23 08:59:49,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:59:49,734 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 297 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:49,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 921 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 08:59:49,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-11-23 08:59:49,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 408. [2023-11-23 08:59:49,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 224 states have (on average 1.2544642857142858) internal successors, (281), 227 states have internal predecessors, (281), 156 states have call successors, (156), 27 states have call predecessors, (156), 26 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-23 08:59:49,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 591 transitions. [2023-11-23 08:59:49,850 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 591 transitions. Word has length 124 [2023-11-23 08:59:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:49,851 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 591 transitions. [2023-11-23 08:59:49,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 08:59:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 591 transitions. [2023-11-23 08:59:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 08:59:49,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:49,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 08:59:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 08:59:49,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:49,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1410092607, now seen corresponding path program 1 times [2023-11-23 08:59:49,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:49,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81611781] [2023-11-23 08:59:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 08:59:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 08:59:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 08:59:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 08:59:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 08:59:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 08:59:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 08:59:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 08:59:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 08:59:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 08:59:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-23 08:59:50,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:50,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81611781] [2023-11-23 08:59:50,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81611781] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:59:50,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213325862] [2023-11-23 08:59:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:50,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:50,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:50,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:59:50,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 08:59:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:51,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 08:59:51,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 08:59:51,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:51,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213325862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:51,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:59:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 08:59:51,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924429942] [2023-11-23 08:59:51,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:59:51,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:51,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:59:51,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 08:59:51,301 INFO L87 Difference]: Start difference. First operand 408 states and 591 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 08:59:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:52,637 INFO L93 Difference]: Finished difference Result 787 states and 1156 transitions. [2023-11-23 08:59:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:59:52,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2023-11-23 08:59:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:52,641 INFO L225 Difference]: With dead ends: 787 [2023-11-23 08:59:52,641 INFO L226 Difference]: Without dead ends: 410 [2023-11-23 08:59:52,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-23 08:59:52,645 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 57 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:52,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 2049 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 08:59:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-23 08:59:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2023-11-23 08:59:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 225 states have (on average 1.2533333333333334) internal successors, (282), 229 states have internal predecessors, (282), 156 states have call successors, (156), 27 states have call predecessors, (156), 27 states have return successors, (167), 154 states have call predecessors, (167), 154 states have call successors, (167) [2023-11-23 08:59:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 605 transitions. [2023-11-23 08:59:52,677 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 605 transitions. Word has length 124 [2023-11-23 08:59:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:52,677 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 605 transitions. [2023-11-23 08:59:52,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 08:59:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 605 transitions. [2023-11-23 08:59:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 08:59:52,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:52,680 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-23 08:59:52,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 08:59:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:52,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:52,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -461116109, now seen corresponding path program 1 times [2023-11-23 08:59:52,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:52,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655077127] [2023-11-23 08:59:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:52,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:59:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:59:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 08:59:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:59:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 08:59:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 08:59:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 08:59:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 08:59:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 08:59:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:59:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 08:59:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 08:59:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 08:59:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 08:59:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 08:59:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 08:59:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 08:59:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 08:59:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-23 08:59:53,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:53,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655077127] [2023-11-23 08:59:53,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655077127] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:59:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038332772] [2023-11-23 08:59:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:53,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:53,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:53,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:59:53,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 08:59:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:54,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:59:54,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 08:59:54,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:54,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038332772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:54,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:59:54,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 08:59:54,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343109371] [2023-11-23 08:59:54,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:54,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 08:59:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 08:59:54,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 08:59:54,292 INFO L87 Difference]: Start difference. First operand 410 states and 605 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 08:59:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:56,366 INFO L93 Difference]: Finished difference Result 810 states and 1227 transitions. [2023-11-23 08:59:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 08:59:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 132 [2023-11-23 08:59:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:56,370 INFO L225 Difference]: With dead ends: 810 [2023-11-23 08:59:56,370 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 08:59:56,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-23 08:59:56,374 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 108 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:56,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2955 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 08:59:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 08:59:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 429. [2023-11-23 08:59:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 08:59:56,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 08:59:56,404 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 132 [2023-11-23 08:59:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:56,404 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 08:59:56,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 08:59:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 08:59:56,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-23 08:59:56,407 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:56,407 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:56,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 08:59:56,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 08:59:56,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:56,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1429164029, now seen corresponding path program 1 times [2023-11-23 08:59:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667433931] [2023-11-23 08:59:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:56,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:56,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643264758] [2023-11-23 08:59:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:56,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:56,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:56,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:59:56,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 08:59:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:59:57,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 2602 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:59:57,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:59:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-23 08:59:57,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:59:57,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:59:57,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667433931] [2023-11-23 08:59:57,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:59:57,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643264758] [2023-11-23 08:59:57,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643264758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:59:57,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:59:57,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 08:59:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007992150] [2023-11-23 08:59:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:59:57,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:59:57,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:59:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:59:57,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:59:57,426 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-23 08:59:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:59:59,288 INFO L93 Difference]: Finished difference Result 833 states and 1286 transitions. [2023-11-23 08:59:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 08:59:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 145 [2023-11-23 08:59:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:59:59,293 INFO L225 Difference]: With dead ends: 833 [2023-11-23 08:59:59,293 INFO L226 Difference]: Without dead ends: 435 [2023-11-23 08:59:59,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-23 08:59:59,297 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 76 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 2526 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 08:59:59,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 2526 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 08:59:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-23 08:59:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 429. [2023-11-23 08:59:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 08:59:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 08:59:59,323 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 145 [2023-11-23 08:59:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:59:59,324 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 08:59:59,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-23 08:59:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 08:59:59,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 08:59:59,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:59:59,328 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:59:59,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 08:59:59,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:59,542 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:59:59,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:59:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash 252766560, now seen corresponding path program 1 times [2023-11-23 08:59:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:59:59,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199390969] [2023-11-23 08:59:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:59:59,632 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:59:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382578654] [2023-11-23 08:59:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:59:59,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:59:59,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:59:59,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:59:59,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 09:00:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:00,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:00,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 09:00:00,357 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:00,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:00,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199390969] [2023-11-23 09:00:00,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:00,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382578654] [2023-11-23 09:00:00,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382578654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:00,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:00,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:00,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115343116] [2023-11-23 09:00:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:00,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:00,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:00,360 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:00:02,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:02,638 INFO L93 Difference]: Finished difference Result 843 states and 1290 transitions. [2023-11-23 09:00:02,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:00:02,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 161 [2023-11-23 09:00:02,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:02,643 INFO L225 Difference]: With dead ends: 843 [2023-11-23 09:00:02,643 INFO L226 Difference]: Without dead ends: 445 [2023-11-23 09:00:02,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:00:02,647 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 136 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:02,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 3389 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 09:00:02,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-23 09:00:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 429. [2023-11-23 09:00:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 241 states have (on average 1.2614107883817427) internal successors, (304), 245 states have internal predecessors, (304), 158 states have call successors, (158), 27 states have call predecessors, (158), 28 states have return successors, (186), 157 states have call predecessors, (186), 156 states have call successors, (186) [2023-11-23 09:00:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 648 transitions. [2023-11-23 09:00:02,671 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 648 transitions. Word has length 161 [2023-11-23 09:00:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:02,671 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 648 transitions. [2023-11-23 09:00:02,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 09:00:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 648 transitions. [2023-11-23 09:00:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-23 09:00:02,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:02,674 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:02,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:02,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:02,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:02,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:02,889 INFO L85 PathProgramCache]: Analyzing trace with hash 381004706, now seen corresponding path program 2 times [2023-11-23 09:00:02,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:02,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913093055] [2023-11-23 09:00:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:02,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:02,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:02,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420653223] [2023-11-23 09:00:02,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:00:02,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:02,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:02,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:03,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 09:00:03,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 09:00:03,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:03,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1806 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:03,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-23 09:00:03,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:03,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:03,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913093055] [2023-11-23 09:00:03,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:03,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420653223] [2023-11-23 09:00:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420653223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:03,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:03,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557564719] [2023-11-23 09:00:03,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:03,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:03,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:03,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:03,606 INFO L87 Difference]: Start difference. First operand 429 states and 648 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 09:00:03,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:03,958 INFO L93 Difference]: Finished difference Result 437 states and 656 transitions. [2023-11-23 09:00:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:00:03,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 174 [2023-11-23 09:00:03,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:03,962 INFO L225 Difference]: With dead ends: 437 [2023-11-23 09:00:03,962 INFO L226 Difference]: Without dead ends: 435 [2023-11-23 09:00:03,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:03,964 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 5 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:03,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2794 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:00:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-23 09:00:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 434. [2023-11-23 09:00:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 244 states have (on average 1.2581967213114753) internal successors, (307), 248 states have internal predecessors, (307), 159 states have call successors, (159), 28 states have call predecessors, (159), 29 states have return successors, (187), 158 states have call predecessors, (187), 157 states have call successors, (187) [2023-11-23 09:00:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 653 transitions. [2023-11-23 09:00:03,988 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 653 transitions. Word has length 174 [2023-11-23 09:00:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:03,989 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 653 transitions. [2023-11-23 09:00:03,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 09:00:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 653 transitions. [2023-11-23 09:00:03,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-23 09:00:03,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:03,993 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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] [2023-11-23 09:00:04,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:04,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:04,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:04,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1692945840, now seen corresponding path program 3 times [2023-11-23 09:00:04,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:04,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103260270] [2023-11-23 09:00:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:04,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:04,323 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:04,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445308856] [2023-11-23 09:00:04,324 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 09:00:04,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:04,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:04,325 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:04,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 09:00:05,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 09:00:05,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:05,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 09:00:05,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-23 09:00:05,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:00:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-23 09:00:05,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:05,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103260270] [2023-11-23 09:00:05,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:05,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445308856] [2023-11-23 09:00:05,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445308856] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:00:05,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:00:05,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2023-11-23 09:00:05,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204684003] [2023-11-23 09:00:05,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:00:05,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:05,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:05,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:05,956 INFO L87 Difference]: Start difference. First operand 434 states and 653 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 09:00:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:07,008 INFO L93 Difference]: Finished difference Result 808 states and 1252 transitions. [2023-11-23 09:00:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:00:07,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 187 [2023-11-23 09:00:07,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:07,012 INFO L225 Difference]: With dead ends: 808 [2023-11-23 09:00:07,013 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 09:00:07,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:00:07,017 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 21 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:07,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3175 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:00:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 09:00:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 439. [2023-11-23 09:00:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 247 states have (on average 1.2550607287449393) internal successors, (310), 250 states have internal predecessors, (310), 161 states have call successors, (161), 29 states have call predecessors, (161), 29 states have return successors, (189), 160 states have call predecessors, (189), 159 states have call successors, (189) [2023-11-23 09:00:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 660 transitions. [2023-11-23 09:00:07,040 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 660 transitions. Word has length 187 [2023-11-23 09:00:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:07,041 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 660 transitions. [2023-11-23 09:00:07,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 09:00:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 660 transitions. [2023-11-23 09:00:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 09:00:07,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:07,044 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:07,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:07,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:07,258 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:07,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:07,258 INFO L85 PathProgramCache]: Analyzing trace with hash 754290581, now seen corresponding path program 1 times [2023-11-23 09:00:07,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:07,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69837549] [2023-11-23 09:00:07,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:07,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:07,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:07,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916423530] [2023-11-23 09:00:07,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:07,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:07,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:07,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:07,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 09:00:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:08,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 2856 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:00:08,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 09:00:08,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:08,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69837549] [2023-11-23 09:00:08,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:08,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916423530] [2023-11-23 09:00:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916423530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:08,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:08,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831272900] [2023-11-23 09:00:08,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:08,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:08,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:08,104 INFO L87 Difference]: Start difference. First operand 439 states and 660 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 09:00:09,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:09,529 INFO L93 Difference]: Finished difference Result 819 states and 1250 transitions. [2023-11-23 09:00:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:00:09,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 188 [2023-11-23 09:00:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:09,533 INFO L225 Difference]: With dead ends: 819 [2023-11-23 09:00:09,533 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 09:00:09,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:09,537 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 62 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:09,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2566 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 09:00:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 09:00:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-11-23 09:00:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 252 states have internal predecessors, (311), 161 states have call successors, (161), 29 states have call predecessors, (161), 30 states have return successors, (200), 160 states have call predecessors, (200), 159 states have call successors, (200) [2023-11-23 09:00:09,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2023-11-23 09:00:09,559 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 188 [2023-11-23 09:00:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:09,560 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2023-11-23 09:00:09,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-23 09:00:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2023-11-23 09:00:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-23 09:00:09,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:09,562 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:09,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:09,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:09,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:09,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1434654563, now seen corresponding path program 1 times [2023-11-23 09:00:09,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:09,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622228547] [2023-11-23 09:00:09,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:09,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:09,908 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:09,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073519767] [2023-11-23 09:00:09,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:09,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:09,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:09,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 09:00:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:10,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 2906 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:10,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 09:00:10,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:10,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622228547] [2023-11-23 09:00:10,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:10,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073519767] [2023-11-23 09:00:10,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073519767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:10,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:10,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499992726] [2023-11-23 09:00:10,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:10,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:10,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:10,734 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 09:00:12,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:12,520 INFO L93 Difference]: Finished difference Result 837 states and 1294 transitions. [2023-11-23 09:00:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:12,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 196 [2023-11-23 09:00:12,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:12,524 INFO L225 Difference]: With dead ends: 837 [2023-11-23 09:00:12,525 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 09:00:12,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:00:12,529 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 114 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:12,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 3439 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 09:00:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 09:00:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 455. [2023-11-23 09:00:12,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 261 states have (on average 1.260536398467433) internal successors, (329), 264 states have internal predecessors, (329), 162 states have call successors, (162), 29 states have call predecessors, (162), 30 states have return successors, (201), 162 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-23 09:00:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 692 transitions. [2023-11-23 09:00:12,553 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 692 transitions. Word has length 196 [2023-11-23 09:00:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:12,554 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 692 transitions. [2023-11-23 09:00:12,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 09:00:12,554 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 692 transitions. [2023-11-23 09:00:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-23 09:00:12,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:12,558 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:12,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:12,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 09:00:12,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:12,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash -273374267, now seen corresponding path program 2 times [2023-11-23 09:00:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:12,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328905064] [2023-11-23 09:00:12,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:12,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:12,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609091971] [2023-11-23 09:00:12,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:00:12,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:12,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:12,894 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:12,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 09:00:13,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:00:13,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:00:13,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 3045 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 09:00:13,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:14,011 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 09:00:14,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 09:00:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-11-23 09:00:14,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:14,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:14,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328905064] [2023-11-23 09:00:14,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:14,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609091971] [2023-11-23 09:00:14,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609091971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:14,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:14,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:00:14,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189657081] [2023-11-23 09:00:14,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:14,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:00:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:00:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:14,127 INFO L87 Difference]: Start difference. First operand 455 states and 692 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 09:00:15,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:15,600 INFO L93 Difference]: Finished difference Result 855 states and 1328 transitions. [2023-11-23 09:00:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:15,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 209 [2023-11-23 09:00:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:15,605 INFO L225 Difference]: With dead ends: 855 [2023-11-23 09:00:15,605 INFO L226 Difference]: Without dead ends: 461 [2023-11-23 09:00:15,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:00:15,609 INFO L413 NwaCegarLoop]: 529 mSDtfsCounter, 81 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:15,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3035 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 09:00:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-23 09:00:15,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 455. [2023-11-23 09:00:15,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 261 states have (on average 1.260536398467433) internal successors, (329), 264 states have internal predecessors, (329), 162 states have call successors, (162), 29 states have call predecessors, (162), 30 states have return successors, (201), 162 states have call predecessors, (201), 160 states have call successors, (201) [2023-11-23 09:00:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 692 transitions. [2023-11-23 09:00:15,635 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 692 transitions. Word has length 209 [2023-11-23 09:00:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:15,636 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 692 transitions. [2023-11-23 09:00:15,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-11-23 09:00:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 692 transitions. [2023-11-23 09:00:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-23 09:00:15,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:15,639 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:00:15,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:15,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 09:00:15,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:15,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1238623212, now seen corresponding path program 1 times [2023-11-23 09:00:15,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:15,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45815832] [2023-11-23 09:00:15,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:15,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:15,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757065317] [2023-11-23 09:00:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:15,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:15,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:15,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:15,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 09:00:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:16,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 3256 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:16,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-23 09:00:16,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:00:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-11-23 09:00:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45815832] [2023-11-23 09:00:17,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:17,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757065317] [2023-11-23 09:00:17,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757065317] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:00:17,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:00:17,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-23 09:00:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853910151] [2023-11-23 09:00:17,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:00:17,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:00:17,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:17,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:00:17,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:00:17,287 INFO L87 Difference]: Start difference. First operand 455 states and 692 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 9 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2023-11-23 09:00:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:20,434 INFO L93 Difference]: Finished difference Result 845 states and 1298 transitions. [2023-11-23 09:00:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:20,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 9 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 238 [2023-11-23 09:00:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:20,439 INFO L225 Difference]: With dead ends: 845 [2023-11-23 09:00:20,439 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 09:00:20,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:00:20,442 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 56 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 5012 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:20,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 5012 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 09:00:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 09:00:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2023-11-23 09:00:20,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 262 states have (on average 1.2595419847328244) internal successors, (330), 265 states have internal predecessors, (330), 162 states have call successors, (162), 29 states have call predecessors, (162), 31 states have return successors, (207), 163 states have call predecessors, (207), 160 states have call successors, (207) [2023-11-23 09:00:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 699 transitions. [2023-11-23 09:00:20,466 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 699 transitions. Word has length 238 [2023-11-23 09:00:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:20,466 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 699 transitions. [2023-11-23 09:00:20,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 9 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2023-11-23 09:00:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 699 transitions. [2023-11-23 09:00:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-23 09:00:20,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:20,470 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:00:20,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:20,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 09:00:20,687 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:20,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -390656539, now seen corresponding path program 1 times [2023-11-23 09:00:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:20,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160293944] [2023-11-23 09:00:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:20,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:20,816 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:20,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520200585] [2023-11-23 09:00:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:20,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:20,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:20,818 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:20,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 09:00:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:21,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:00:21,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-23 09:00:21,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:21,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:21,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160293944] [2023-11-23 09:00:21,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:21,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520200585] [2023-11-23 09:00:21,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520200585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:21,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:21,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:00:21,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160145995] [2023-11-23 09:00:21,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:21,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:00:21,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:00:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:00:21,721 INFO L87 Difference]: Start difference. First operand 457 states and 699 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 09:00:24,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:24,515 INFO L93 Difference]: Finished difference Result 853 states and 1314 transitions. [2023-11-23 09:00:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:00:24,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) Word has length 237 [2023-11-23 09:00:24,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:24,520 INFO L225 Difference]: With dead ends: 853 [2023-11-23 09:00:24,520 INFO L226 Difference]: Without dead ends: 457 [2023-11-23 09:00:24,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:00:24,523 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 141 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:24,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 3873 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 09:00:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-23 09:00:24,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 441. [2023-11-23 09:00:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 248 states have (on average 1.2540322580645162) internal successors, (311), 251 states have internal predecessors, (311), 161 states have call successors, (161), 29 states have call predecessors, (161), 30 states have return successors, (193), 161 states have call predecessors, (193), 159 states have call successors, (193) [2023-11-23 09:00:24,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 665 transitions. [2023-11-23 09:00:24,543 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 665 transitions. Word has length 237 [2023-11-23 09:00:24,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:24,543 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 665 transitions. [2023-11-23 09:00:24,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 09:00:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 665 transitions. [2023-11-23 09:00:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:24,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:24,547 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:24,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:24,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 09:00:24,752 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:24,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:24,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1832407567, now seen corresponding path program 1 times [2023-11-23 09:00:24,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:24,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396474211] [2023-11-23 09:00:24,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:24,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:24,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:24,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486144899] [2023-11-23 09:00:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:24,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:24,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:24,872 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:24,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 09:00:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:25,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 3491 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 09:00:25,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-23 09:00:25,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:25,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:25,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396474211] [2023-11-23 09:00:25,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486144899] [2023-11-23 09:00:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486144899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:00:25,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946625765] [2023-11-23 09:00:25,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:25,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:00:25,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:25,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:00:25,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:25,761 INFO L87 Difference]: Start difference. First operand 441 states and 665 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:00:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:28,003 INFO L93 Difference]: Finished difference Result 860 states and 1311 transitions. [2023-11-23 09:00:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:00:28,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 250 [2023-11-23 09:00:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:28,007 INFO L225 Difference]: With dead ends: 860 [2023-11-23 09:00:28,007 INFO L226 Difference]: Without dead ends: 483 [2023-11-23 09:00:28,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:00:28,011 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 36 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:28,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3966 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 09:00:28,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-23 09:00:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 460. [2023-11-23 09:00:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 261 states have (on average 1.2567049808429118) internal successors, (328), 264 states have internal predecessors, (328), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 09:00:28,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 697 transitions. [2023-11-23 09:00:28,036 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 697 transitions. Word has length 250 [2023-11-23 09:00:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:28,038 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 697 transitions. [2023-11-23 09:00:28,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:00:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 697 transitions. [2023-11-23 09:00:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:28,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:28,041 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:28,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:28,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 09:00:28,256 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:28,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1153135313, now seen corresponding path program 1 times [2023-11-23 09:00:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:28,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958740902] [2023-11-23 09:00:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:28,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:28,471 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:28,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563613928] [2023-11-23 09:00:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:28,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:28,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:28,473 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:28,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 09:00:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:29,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 3488 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 09:00:29,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:29,365 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-23 09:00:29,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:29,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:29,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958740902] [2023-11-23 09:00:29,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:29,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563613928] [2023-11-23 09:00:29,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563613928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:29,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:29,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:00:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964318635] [2023-11-23 09:00:29,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:29,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:00:29,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:29,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:00:29,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:00:29,369 INFO L87 Difference]: Start difference. First operand 460 states and 697 transitions. Second operand has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:31,744 INFO L93 Difference]: Finished difference Result 866 states and 1319 transitions. [2023-11-23 09:00:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 09:00:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:31,748 INFO L225 Difference]: With dead ends: 866 [2023-11-23 09:00:31,748 INFO L226 Difference]: Without dead ends: 483 [2023-11-23 09:00:31,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:00:31,751 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 28 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:31,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3481 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-23 09:00:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-23 09:00:31,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 460. [2023-11-23 09:00:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 261 states have (on average 1.2528735632183907) internal successors, (327), 264 states have internal predecessors, (327), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 09:00:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 696 transitions. [2023-11-23 09:00:31,775 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 696 transitions. Word has length 250 [2023-11-23 09:00:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:31,776 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 696 transitions. [2023-11-23 09:00:31,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:31,776 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 696 transitions. [2023-11-23 09:00:31,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:31,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:31,778 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:31,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:31,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 09:00:31,992 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:31,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:31,992 INFO L85 PathProgramCache]: Analyzing trace with hash -477975187, now seen corresponding path program 1 times [2023-11-23 09:00:31,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:31,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830653357] [2023-11-23 09:00:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:31,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:32,100 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:32,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680320643] [2023-11-23 09:00:32,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:32,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:32,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:32,102 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:32,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 09:00:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:33,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 3485 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:00:33,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:33,125 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-23 09:00:33,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:33,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:33,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830653357] [2023-11-23 09:00:33,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:33,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680320643] [2023-11-23 09:00:33,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680320643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:33,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:33,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:00:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652704966] [2023-11-23 09:00:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:33,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:00:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:33,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:00:33,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:33,128 INFO L87 Difference]: Start difference. First operand 460 states and 696 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:34,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:34,988 INFO L93 Difference]: Finished difference Result 921 states and 1426 transitions. [2023-11-23 09:00:34,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:00:34,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 09:00:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:34,992 INFO L225 Difference]: With dead ends: 921 [2023-11-23 09:00:34,992 INFO L226 Difference]: Without dead ends: 492 [2023-11-23 09:00:34,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:00:34,995 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 21 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:34,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2634 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 09:00:34,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-23 09:00:35,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 468. [2023-11-23 09:00:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 269 states have (on average 1.2527881040892193) internal successors, (337), 272 states have internal predecessors, (337), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 09:00:35,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 706 transitions. [2023-11-23 09:00:35,022 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 706 transitions. Word has length 250 [2023-11-23 09:00:35,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:35,023 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 706 transitions. [2023-11-23 09:00:35,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 706 transitions. [2023-11-23 09:00:35,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:35,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:35,025 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:35,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-23 09:00:35,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:35,245 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:35,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:35,245 INFO L85 PathProgramCache]: Analyzing trace with hash 530045229, now seen corresponding path program 1 times [2023-11-23 09:00:35,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:35,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892958981] [2023-11-23 09:00:35,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:35,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:35,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:35,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112714577] [2023-11-23 09:00:35,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:35,492 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:35,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 09:00:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:36,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 3479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:00:36,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-23 09:00:36,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:36,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:36,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892958981] [2023-11-23 09:00:36,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:36,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112714577] [2023-11-23 09:00:36,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112714577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:36,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:36,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:00:36,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552666952] [2023-11-23 09:00:36,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:36,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:00:36,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:36,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:00:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:00:36,385 INFO L87 Difference]: Start difference. First operand 468 states and 706 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:36,577 INFO L93 Difference]: Finished difference Result 913 states and 1412 transitions. [2023-11-23 09:00:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:00:36,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 09:00:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:36,613 INFO L225 Difference]: With dead ends: 913 [2023-11-23 09:00:36,613 INFO L226 Difference]: Without dead ends: 476 [2023-11-23 09:00:36,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:00:36,617 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 3 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:36,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1685 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:00:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-11-23 09:00:36,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 472. [2023-11-23 09:00:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 273 states have (on average 1.249084249084249) internal successors, (341), 276 states have internal predecessors, (341), 166 states have call successors, (166), 29 states have call predecessors, (166), 31 states have return successors, (203), 167 states have call predecessors, (203), 164 states have call successors, (203) [2023-11-23 09:00:36,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 710 transitions. [2023-11-23 09:00:36,644 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 710 transitions. Word has length 250 [2023-11-23 09:00:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:36,645 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 710 transitions. [2023-11-23 09:00:36,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 710 transitions. [2023-11-23 09:00:36,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:36,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:36,647 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:36,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-23 09:00:36,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 09:00:36,860 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:36,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1652880621, now seen corresponding path program 1 times [2023-11-23 09:00:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:36,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589493171] [2023-11-23 09:00:36,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:36,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:36,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:36,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133188645] [2023-11-23 09:00:36,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:36,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:36,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:36,960 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:36,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 09:00:37,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:37,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 3469 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-23 09:00:37,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:38,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:38,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 09:00:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 09:00:38,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:38,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:38,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589493171] [2023-11-23 09:00:38,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:38,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133188645] [2023-11-23 09:00:38,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133188645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:38,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:38,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 09:00:38,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856051349] [2023-11-23 09:00:38,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:38,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:00:38,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:00:38,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:00:38,139 INFO L87 Difference]: Start difference. First operand 472 states and 710 transitions. Second operand has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:00:40,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 09:00:41,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:41,783 INFO L93 Difference]: Finished difference Result 985 states and 1522 transitions. [2023-11-23 09:00:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 09:00:41,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 250 [2023-11-23 09:00:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:41,787 INFO L225 Difference]: With dead ends: 985 [2023-11-23 09:00:41,787 INFO L226 Difference]: Without dead ends: 544 [2023-11-23 09:00:41,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2023-11-23 09:00:41,790 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 92 mSDsluCounter, 4989 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5527 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:41,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5527 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-23 09:00:41,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-23 09:00:41,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 509. [2023-11-23 09:00:41,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 309 states have (on average 1.255663430420712) internal successors, (388), 311 states have internal predecessors, (388), 166 states have call successors, (166), 29 states have call predecessors, (166), 32 states have return successors, (220), 169 states have call predecessors, (220), 164 states have call successors, (220) [2023-11-23 09:00:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 774 transitions. [2023-11-23 09:00:41,816 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 774 transitions. Word has length 250 [2023-11-23 09:00:41,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:41,816 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 774 transitions. [2023-11-23 09:00:41,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.75) internal successors, (105), 12 states have internal predecessors, (105), 5 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:00:41,816 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 774 transitions. [2023-11-23 09:00:41,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-23 09:00:41,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:41,819 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:00:41,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:42,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 09:00:42,038 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:42,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:42,039 INFO L85 PathProgramCache]: Analyzing trace with hash -749539027, now seen corresponding path program 1 times [2023-11-23 09:00:42,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:42,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671962202] [2023-11-23 09:00:42,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:42,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:42,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:42,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409911943] [2023-11-23 09:00:42,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:42,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:42,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:42,165 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:42,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 09:00:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:43,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:00:43,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-23 09:00:43,150 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:43,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:43,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671962202] [2023-11-23 09:00:43,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:43,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409911943] [2023-11-23 09:00:43,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409911943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:43,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:43,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:00:43,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186662119] [2023-11-23 09:00:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:43,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:00:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:43,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:00:43,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:00:43,153 INFO L87 Difference]: Start difference. First operand 509 states and 774 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:43,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:43,359 INFO L93 Difference]: Finished difference Result 990 states and 1583 transitions. [2023-11-23 09:00:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:00:43,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 250 [2023-11-23 09:00:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:43,363 INFO L225 Difference]: With dead ends: 990 [2023-11-23 09:00:43,363 INFO L226 Difference]: Without dead ends: 512 [2023-11-23 09:00:43,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:00:43,368 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 7 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:43,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1693 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:00:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-23 09:00:43,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 509. [2023-11-23 09:00:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 309 states have (on average 1.2524271844660195) internal successors, (387), 311 states have internal predecessors, (387), 166 states have call successors, (166), 29 states have call predecessors, (166), 32 states have return successors, (220), 169 states have call predecessors, (220), 164 states have call successors, (220) [2023-11-23 09:00:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 773 transitions. [2023-11-23 09:00:43,395 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 773 transitions. Word has length 250 [2023-11-23 09:00:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:43,396 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 773 transitions. [2023-11-23 09:00:43,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-11-23 09:00:43,396 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 773 transitions. [2023-11-23 09:00:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 09:00:43,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:43,398 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:00:43,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:43,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 09:00:43,623 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:43,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash 35301421, now seen corresponding path program 1 times [2023-11-23 09:00:43,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:43,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205010071] [2023-11-23 09:00:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:43,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:43,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:43,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961613796] [2023-11-23 09:00:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:43,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:43,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:43,718 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:43,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 09:00:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:44,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 3489 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-23 09:00:44,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:44,840 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (select |c_#memory_int| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|)))) is different from true [2023-11-23 09:00:47,001 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (= 0 (mod (select (select |c_#memory_int| |c_aws_array_list_is_valid_#in~list.base|) (+ |c_aws_array_list_is_valid_#in~list.offset| 8)) 18446744073709551616)))) (or (and .cse0 |c_aws_array_list_is_valid_#t~short94|) (and (not .cse0) (not |c_aws_array_list_is_valid_#t~short94|)))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (select |c_#memory_int| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|))))) is different from true [2023-11-23 09:00:47,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 09:00:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-23 09:00:47,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:47,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:47,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205010071] [2023-11-23 09:00:47,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:47,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961613796] [2023-11-23 09:00:47,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961613796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:47,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:47,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 09:00:47,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460887224] [2023-11-23 09:00:47,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:47,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 09:00:47,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:47,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 09:00:47,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=90, Unknown=2, NotChecked=38, Total=156 [2023-11-23 09:00:47,191 INFO L87 Difference]: Start difference. First operand 509 states and 773 transitions. Second operand has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 09:00:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:54,910 INFO L93 Difference]: Finished difference Result 1370 states and 2341 transitions. [2023-11-23 09:00:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 09:00:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) Word has length 254 [2023-11-23 09:00:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:54,920 INFO L225 Difference]: With dead ends: 1370 [2023-11-23 09:00:54,920 INFO L226 Difference]: Without dead ends: 892 [2023-11-23 09:00:54,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=124, Invalid=434, Unknown=2, NotChecked=90, Total=650 [2023-11-23 09:00:54,927 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 387 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 6061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2317 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:54,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 2894 Invalid, 6061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 3486 Invalid, 0 Unknown, 2317 Unchecked, 7.3s Time] [2023-11-23 09:00:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2023-11-23 09:00:54,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 503. [2023-11-23 09:00:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 303 states have (on average 1.2475247524752475) internal successors, (378), 305 states have internal predecessors, (378), 166 states have call successors, (166), 29 states have call predecessors, (166), 32 states have return successors, (220), 169 states have call predecessors, (220), 164 states have call successors, (220) [2023-11-23 09:00:54,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 764 transitions. [2023-11-23 09:00:54,969 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 764 transitions. Word has length 254 [2023-11-23 09:00:54,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:54,969 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 764 transitions. [2023-11-23 09:00:54,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 6 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 6 states have call predecessors, (29), 6 states have call successors, (29) [2023-11-23 09:00:54,970 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 764 transitions. [2023-11-23 09:00:54,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 09:00:54,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:54,972 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:00:55,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:55,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:55,190 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:55,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:55,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1734009875, now seen corresponding path program 1 times [2023-11-23 09:00:55,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:55,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920003523] [2023-11-23 09:00:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:55,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:55,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:55,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [450081545] [2023-11-23 09:00:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:55,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:55,309 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:55,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 09:00:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:00:57,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 3479 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 09:00:57,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:00:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-23 09:00:57,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:00:57,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:00:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920003523] [2023-11-23 09:00:57,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:00:57,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450081545] [2023-11-23 09:00:57,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450081545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:00:57,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:00:57,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:00:57,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481349367] [2023-11-23 09:00:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:00:57,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:00:57,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:00:57,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:00:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:00:57,601 INFO L87 Difference]: Start difference. First operand 503 states and 764 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 09:00:58,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:00:58,623 INFO L93 Difference]: Finished difference Result 929 states and 1419 transitions. [2023-11-23 09:00:58,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:00:58,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 254 [2023-11-23 09:00:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:00:58,627 INFO L225 Difference]: With dead ends: 929 [2023-11-23 09:00:58,628 INFO L226 Difference]: Without dead ends: 486 [2023-11-23 09:00:58,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:00:58,631 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 2 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:00:58,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2040 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:00:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-11-23 09:00:58,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2023-11-23 09:00:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 291 states have (on average 1.2439862542955327) internal successors, (362), 294 states have internal predecessors, (362), 161 states have call successors, (161), 29 states have call predecessors, (161), 32 states have return successors, (212), 163 states have call predecessors, (212), 159 states have call successors, (212) [2023-11-23 09:00:58,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 735 transitions. [2023-11-23 09:00:58,655 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 735 transitions. Word has length 254 [2023-11-23 09:00:58,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:00:58,656 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 735 transitions. [2023-11-23 09:00:58,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 09:00:58,656 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 735 transitions. [2023-11-23 09:00:58,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 09:00:58,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:00:58,658 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:00:58,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 09:00:58,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:58,884 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:00:58,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:00:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash 897601485, now seen corresponding path program 1 times [2023-11-23 09:00:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:00:58,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671459638] [2023-11-23 09:00:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:58,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:00:58,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:00:58,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409093928] [2023-11-23 09:00:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:00:58,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:00:58,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:00:58,985 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:00:59,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 09:01:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:01:25,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 3519 conjuncts, 278 conjunts are in the unsatisfiable core [2023-11-23 09:01:25,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:01:25,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 Killed by 15