./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.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_s_sift_either_harness.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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:02:49,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:02:49,150 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:02:49,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:02:49,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:02:49,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:02:49,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:02:49,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:02:49,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:02:49,172 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:02:49,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:02:49,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:02:49,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:02:49,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:02:49,174 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:02:49,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:02:49,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:02:49,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:02:49,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:02:49,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:02:49,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:02:49,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:02:49,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:02:49,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:02:49,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:02:49,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:02:49,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:02:49,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:02:49,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:02:49,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:02:49,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:02:49,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:02:49,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:02:49,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:02:49,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:02:49,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:02:49,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:02:49,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:02:49,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:02:49,182 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:02:49,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:02:49,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:02:49,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:02:49,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:02:49,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:02:49,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-23 09:02:50,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:02:51,232 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:02:51,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2023-11-23 09:02:51,288 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8392712f1/20e993132a8c462d9ab04e7375c49384/FLAG249d15c47 [2023-11-23 09:02:51,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8392712f1/20e993132a8c462d9ab04e7375c49384 [2023-11-23 09:02:51,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:02:51,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:02:51,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:02:51,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:02:51,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:02:51,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:02:51" (1/1) ... [2023-11-23 09:02:51,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453044b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:51, skipping insertion in model container [2023-11-23 09:02:51,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:02:51" (1/1) ... [2023-11-23 09:02:51,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:02:51,803 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_s_sift_either_harness.i[4506,4519] [2023-11-23 09:02:51,810 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_s_sift_either_harness.i[4566,4579] [2023-11-23 09:02:52,372 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,374 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,376 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,399 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,401 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,402 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,403 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,702 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:02:52,704 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:02:52,705 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:02:52,706 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:02:52,707 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:02:52,707 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:02:52,708 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:02:52,709 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:02:52,717 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:02:52,718 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:02:52,849 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,850 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,853 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,858 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,971 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,973 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,975 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,979 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,980 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,981 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,982 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,983 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,984 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,987 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,989 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,990 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:52,996 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,012 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,013 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:02:53,082 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:02:53,109 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_s_sift_either_harness.i[4506,4519] [2023-11-23 09:02:53,110 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_s_sift_either_harness.i[4566,4579] [2023-11-23 09:02:53,159 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,165 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,179 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,183 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,184 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,184 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,186 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,223 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:02:53,231 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:02:53,232 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:02:53,233 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:02:53,234 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:02:53,235 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:02:53,235 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:02:53,235 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:02:53,236 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:02:53,236 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:02:53,276 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,282 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,287 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2023-11-23 09:02:53,313 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,313 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,314 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,315 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,316 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,317 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,318 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,318 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,319 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,320 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,364 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:53,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:02:53,609 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,610 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,611 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,612 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:53,617 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:02:53,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53 WrapperNode [2023-11-23 09:02:53,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:02:53,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:02:53,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:02:53,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:02:53,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,795 INFO L138 Inliner]: procedures = 696, calls = 1888, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 925 [2023-11-23 09:02:53,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:02:53,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:02:53,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:02:53,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:02:53,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,882 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:02:53,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:02:53,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:02:53,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:02:53,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (1/1) ... [2023-11-23 09:02:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:02:53,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:53,961 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 09:02:53,984 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 09:02:54,017 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2023-11-23 09:02:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2023-11-23 09:02:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 09:02:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 09:02:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 09:02:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 09:02:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 09:02:54,018 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 09:02:54,018 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 09:02:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 09:02:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 09:02:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:02:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:02:54,019 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2023-11-23 09:02:54,019 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2023-11-23 09:02:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:02:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 09:02:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 09:02:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:02:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:02:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:02:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:02:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:02:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2023-11-23 09:02:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2023-11-23 09:02:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 09:02:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 09:02:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:02:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:02:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:02:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:02:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 09:02:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 09:02:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 09:02:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 09:02:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 09:02:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 09:02:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 09:02:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 09:02:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:02:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:02:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 09:02:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 09:02:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 09:02:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 09:02:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:02:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 09:02:54,034 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 09:02:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:02:54,034 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:02:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 09:02:54,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 09:02:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:02:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:02:54,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:02:54,035 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:02:54,035 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:02:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:02:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:02:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:02:54,341 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:02:54,343 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:02:55,234 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:02:55,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:02:55,337 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 09:02:55,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:02:55 BoogieIcfgContainer [2023-11-23 09:02:55,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:02:55,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:02:55,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:02:55,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:02:55,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:02:51" (1/3) ... [2023-11-23 09:02:55,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3984f7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:02:55, skipping insertion in model container [2023-11-23 09:02:55,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:53" (2/3) ... [2023-11-23 09:02:55,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3984f7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:02:55, skipping insertion in model container [2023-11-23 09:02:55,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:02:55" (3/3) ... [2023-11-23 09:02:55,347 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2023-11-23 09:02:55,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:02:55,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 09:02:55,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:02:55,429 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;@171aac18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:02:55,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 09:02:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-23 09:02:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 09:02:55,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:55,452 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:55,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:55,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:55,458 INFO L85 PathProgramCache]: Analyzing trace with hash 97212978, now seen corresponding path program 1 times [2023-11-23 09:02:55,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:55,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451903721] [2023-11-23 09:02:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:55,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:02:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:02:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:56,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:02:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:02:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:02:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:02:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:02:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:02:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:02:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-23 09:02:56,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451903721] [2023-11-23 09:02:56,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451903721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:02:56,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771319208] [2023-11-23 09:02:56,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:02:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:02:56,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:56,465 INFO L87 Difference]: Start difference. First operand has 319 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 182 states have internal predecessors, (233), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:02:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:57,810 INFO L93 Difference]: Finished difference Result 740 states and 1252 transitions. [2023-11-23 09:02:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 09:02:57,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-23 09:02:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:57,859 INFO L225 Difference]: With dead ends: 740 [2023-11-23 09:02:57,859 INFO L226 Difference]: Without dead ends: 427 [2023-11-23 09:02:57,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:57,888 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 238 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:57,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 439 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 09:02:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-23 09:02:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 316. [2023-11-23 09:02:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 178 states have (on average 1.252808988764045) internal successors, (223), 180 states have internal predecessors, (223), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-23 09:02:58,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 447 transitions. [2023-11-23 09:02:58,108 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 447 transitions. Word has length 96 [2023-11-23 09:02:58,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:58,111 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 447 transitions. [2023-11-23 09:02:58,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:02:58,111 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 447 transitions. [2023-11-23 09:02:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 09:02:58,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:58,122 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:58,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:02:58,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:58,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1303987904, now seen corresponding path program 1 times [2023-11-23 09:02:58,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:58,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481881202] [2023-11-23 09:02:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:58,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:02:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:02:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:02:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:02:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:02:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:02:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:02:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:02:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:02:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 09:02:59,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481881202] [2023-11-23 09:02:59,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481881202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:02:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886646037] [2023-11-23 09:02:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:59,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:59,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:59,096 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 09:02:59,116 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 09:02:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 09:02:59,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 09:02:59,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:59,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886646037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:02:59,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-23 09:02:59,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777535150] [2023-11-23 09:02:59,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:59,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 09:02:59,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:59,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 09:02:59,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:59,554 INFO L87 Difference]: Start difference. First operand 316 states and 447 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:02:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:59,693 INFO L93 Difference]: Finished difference Result 395 states and 550 transitions. [2023-11-23 09:02:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 09:02:59,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 96 [2023-11-23 09:02:59,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:59,701 INFO L225 Difference]: With dead ends: 395 [2023-11-23 09:02:59,701 INFO L226 Difference]: Without dead ends: 317 [2023-11-23 09:02:59,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:59,702 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:59,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 835 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:02:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-11-23 09:02:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2023-11-23 09:02:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 181 states have internal predecessors, (224), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-23 09:02:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 448 transitions. [2023-11-23 09:02:59,749 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 448 transitions. Word has length 96 [2023-11-23 09:02:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:59,750 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 448 transitions. [2023-11-23 09:02:59,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 09:02:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 448 transitions. [2023-11-23 09:02:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 09:02:59,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:59,757 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 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] [2023-11-23 09:02:59,782 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 09:02:59,978 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 09:02:59,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:59,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash 734021591, now seen corresponding path program 1 times [2023-11-23 09:02:59,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:59,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805054976] [2023-11-23 09:02:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:59,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:03:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:03:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:03:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:03:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:03:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 09:03:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-23 09:03:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 09:03:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 09:03:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 09:03:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 09:03:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 09:03:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 09:03:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 09:03:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-23 09:03:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805054976] [2023-11-23 09:03:00,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805054976] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:03:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132959317] [2023-11-23 09:03:00,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:00,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:00,792 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 09:03:00,835 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 09:03:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:01,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 09:03:01,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 09:03:01,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:01,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132959317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:01,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:03:01,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 09:03:01,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482458440] [2023-11-23 09:03:01,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:01,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:03:01,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:01,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:03:01,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:01,451 INFO L87 Difference]: Start difference. First operand 317 states and 448 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 09:03:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:01,829 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2023-11-23 09:03:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 115 [2023-11-23 09:03:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:01,833 INFO L225 Difference]: With dead ends: 605 [2023-11-23 09:03:01,833 INFO L226 Difference]: Without dead ends: 319 [2023-11-23 09:03:01,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:03:01,838 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 44 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:01,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 1535 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:03:01,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-11-23 09:03:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-11-23 09:03:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 180 states have (on average 1.25) internal successors, (225), 183 states have internal predecessors, (225), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2023-11-23 09:03:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 457 transitions. [2023-11-23 09:03:01,875 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 457 transitions. Word has length 115 [2023-11-23 09:03:01,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:01,877 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 457 transitions. [2023-11-23 09:03:01,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-23 09:03:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 457 transitions. [2023-11-23 09:03:01,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 09:03:01,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:01,879 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:01,898 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 09:03:02,098 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 09:03:02,099 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:02,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:02,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1242899854, now seen corresponding path program 1 times [2023-11-23 09:03:02,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369522380] [2023-11-23 09:03:02,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:03:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:03:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 09:03:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 09:03:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:03:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:03:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 09:03:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 09:03:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 09:03:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 09:03:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 09:03:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 09:03:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:03:02,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 09:03:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 09:03:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 09:03:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 09:03:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-23 09:03:02,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:02,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369522380] [2023-11-23 09:03:02,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369522380] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:03:02,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910715875] [2023-11-23 09:03:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:02,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:02,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:02,721 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 09:03:02,743 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 09:03:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:03,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 09:03:03,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 09:03:03,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:03,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910715875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:03,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:03:03,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 09:03:03,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324538510] [2023-11-23 09:03:03,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:03,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:03:03,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:03,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:03:03,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:03:03,267 INFO L87 Difference]: Start difference. First operand 319 states and 457 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:03:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:03,813 INFO L93 Difference]: Finished difference Result 628 states and 920 transitions. [2023-11-23 09:03:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:03,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 123 [2023-11-23 09:03:03,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:03,817 INFO L225 Difference]: With dead ends: 628 [2023-11-23 09:03:03,817 INFO L226 Difference]: Without dead ends: 340 [2023-11-23 09:03:03,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-23 09:03:03,821 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 79 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:03,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2285 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:03,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-23 09:03:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 338. [2023-11-23 09:03:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 09:03:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-23 09:03:03,852 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 123 [2023-11-23 09:03:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:03,853 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-23 09:03:03,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-23 09:03:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-23 09:03:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 09:03:03,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:03,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:03,878 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 09:03:04,068 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 09:03:04,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:04,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash 74696054, now seen corresponding path program 1 times [2023-11-23 09:03:04,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:04,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365959764] [2023-11-23 09:03:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:04,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:04,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:04,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68468886] [2023-11-23 09:03:04,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:04,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:04,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:04,156 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 09:03:04,181 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 09:03:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:04,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 2440 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:03:04,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:04,669 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-23 09:03:04,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:04,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:04,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365959764] [2023-11-23 09:03:04,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:04,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68468886] [2023-11-23 09:03:04,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68468886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:04,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:04,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:03:04,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850213644] [2023-11-23 09:03:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:04,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:03:04,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:03:04,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:03:04,672 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 09:03:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:04,992 INFO L93 Difference]: Finished difference Result 651 states and 968 transitions. [2023-11-23 09:03:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:04,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 136 [2023-11-23 09:03:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:04,998 INFO L225 Difference]: With dead ends: 651 [2023-11-23 09:03:04,998 INFO L226 Difference]: Without dead ends: 344 [2023-11-23 09:03:05,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 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 09:03:05,001 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 63 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:05,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1882 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:03:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-23 09:03:05,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 338. [2023-11-23 09:03:05,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 09:03:05,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-23 09:03:05,021 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 136 [2023-11-23 09:03:05,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:05,022 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-23 09:03:05,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 09:03:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-23 09:03:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 09:03:05,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:05,025 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] [2023-11-23 09:03:05,048 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 09:03:05,238 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 09:03:05,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:05,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:05,239 INFO L85 PathProgramCache]: Analyzing trace with hash -401171252, now seen corresponding path program 1 times [2023-11-23 09:03:05,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:05,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632376984] [2023-11-23 09:03:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:05,306 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:05,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427759091] [2023-11-23 09:03:05,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:05,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:05,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:05,308 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 09:03:05,310 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 09:03:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:05,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 2512 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:03:05,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-23 09:03:05,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:05,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632376984] [2023-11-23 09:03:05,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:05,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427759091] [2023-11-23 09:03:05,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427759091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:05,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:03:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420131759] [2023-11-23 09:03:05,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:05,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:03:05,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:05,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:03:05,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:03:05,919 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 09:03:06,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:06,529 INFO L93 Difference]: Finished difference Result 677 states and 1006 transitions. [2023-11-23 09:03:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 152 [2023-11-23 09:03:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:06,534 INFO L225 Difference]: With dead ends: 677 [2023-11-23 09:03:06,534 INFO L226 Difference]: Without dead ends: 370 [2023-11-23 09:03:06,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 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 09:03:06,537 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 114 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:06,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2538 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:06,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-23 09:03:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 338. [2023-11-23 09:03:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 196 states have (on average 1.260204081632653) internal successors, (247), 199 states have internal predecessors, (247), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 09:03:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 494 transitions. [2023-11-23 09:03:06,560 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 494 transitions. Word has length 152 [2023-11-23 09:03:06,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:06,560 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 494 transitions. [2023-11-23 09:03:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 09:03:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 494 transitions. [2023-11-23 09:03:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-23 09:03:06,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:06,564 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:06,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 09:03:06,780 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 09:03:06,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:06,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:06,781 INFO L85 PathProgramCache]: Analyzing trace with hash -193419864, now seen corresponding path program 1 times [2023-11-23 09:03:06,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:06,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736969855] [2023-11-23 09:03:06,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:06,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:06,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:06,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189370655] [2023-11-23 09:03:06,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:06,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:06,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:06,848 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 09:03:06,867 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 09:03:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:07,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 2651 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:03:07,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:07,432 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-23 09:03:07,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:07,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736969855] [2023-11-23 09:03:07,433 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:07,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189370655] [2023-11-23 09:03:07,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189370655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:07,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:07,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:03:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711895955] [2023-11-23 09:03:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:03:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:07,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:03:07,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:03:07,436 INFO L87 Difference]: Start difference. First operand 338 states and 494 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 09:03:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:07,906 INFO L93 Difference]: Finished difference Result 621 states and 921 transitions. [2023-11-23 09:03:07,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 165 [2023-11-23 09:03:07,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:07,909 INFO L225 Difference]: With dead ends: 621 [2023-11-23 09:03:07,909 INFO L226 Difference]: Without dead ends: 340 [2023-11-23 09:03:07,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:07,912 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 98 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:07,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 2241 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:03:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-23 09:03:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2023-11-23 09:03:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 197 states have (on average 1.2588832487309645) internal successors, (248), 201 states have internal predecessors, (248), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2023-11-23 09:03:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 501 transitions. [2023-11-23 09:03:07,934 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 501 transitions. Word has length 165 [2023-11-23 09:03:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:07,935 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 501 transitions. [2023-11-23 09:03:07,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 09:03:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 501 transitions. [2023-11-23 09:03:07,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-23 09:03:07,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:07,938 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:07,963 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 09:03:08,158 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 09:03:08,159 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:08,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash 700999875, now seen corresponding path program 1 times [2023-11-23 09:03:08,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:08,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371161064] [2023-11-23 09:03:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:08,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:08,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904165993] [2023-11-23 09:03:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:08,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:08,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:08,252 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 09:03:08,286 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 09:03:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:09,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:03:09,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:09,155 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-11-23 09:03:09,155 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:09,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:09,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371161064] [2023-11-23 09:03:09,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:09,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904165993] [2023-11-23 09:03:09,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904165993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:09,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:09,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:03:09,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544393793] [2023-11-23 09:03:09,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:09,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:09,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:09,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:09,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:09,158 INFO L87 Difference]: Start difference. First operand 340 states and 501 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:10,113 INFO L93 Difference]: Finished difference Result 639 states and 955 transitions. [2023-11-23 09:03:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:10,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 173 [2023-11-23 09:03:10,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:10,117 INFO L225 Difference]: With dead ends: 639 [2023-11-23 09:03:10,117 INFO L226 Difference]: Without dead ends: 356 [2023-11-23 09:03:10,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:10,120 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 149 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:10,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2881 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:03:10,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-23 09:03:10,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2023-11-23 09:03:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 210 states have (on average 1.2666666666666666) internal successors, (266), 213 states have internal predecessors, (266), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2023-11-23 09:03:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 521 transitions. [2023-11-23 09:03:10,173 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 521 transitions. Word has length 173 [2023-11-23 09:03:10,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:10,174 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 521 transitions. [2023-11-23 09:03:10,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 521 transitions. [2023-11-23 09:03:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-23 09:03:10,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:10,177 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 09:03:10,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-23 09:03:10,391 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 09:03:10,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:10,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash -313636815, now seen corresponding path program 1 times [2023-11-23 09:03:10,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:10,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803846541] [2023-11-23 09:03:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:10,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:10,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78723163] [2023-11-23 09:03:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:10,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:10,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:10,548 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 09:03:10,608 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 09:03:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:11,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:11,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 09:03:11,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:11,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:11,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803846541] [2023-11-23 09:03:11,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:11,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78723163] [2023-11-23 09:03:11,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78723163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:11,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:11,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:03:11,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919891350] [2023-11-23 09:03:11,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:11,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:03:11,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:11,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:03:11,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:03:11,664 INFO L87 Difference]: Start difference. First operand 354 states and 521 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:12,509 INFO L93 Difference]: Finished difference Result 657 states and 984 transitions. [2023-11-23 09:03:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:12,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 186 [2023-11-23 09:03:12,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:12,513 INFO L225 Difference]: With dead ends: 657 [2023-11-23 09:03:12,513 INFO L226 Difference]: Without dead ends: 360 [2023-11-23 09:03:12,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:12,517 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 117 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:12,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2570 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 09:03:12,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-23 09:03:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 354. [2023-11-23 09:03:12,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 210 states have (on average 1.2666666666666666) internal successors, (266), 213 states have internal predecessors, (266), 116 states have call successors, (116), 24 states have call predecessors, (116), 26 states have return successors, (139), 116 states have call predecessors, (139), 114 states have call successors, (139) [2023-11-23 09:03:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 521 transitions. [2023-11-23 09:03:12,553 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 521 transitions. Word has length 186 [2023-11-23 09:03:12,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:12,554 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 521 transitions. [2023-11-23 09:03:12,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-23 09:03:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 521 transitions. [2023-11-23 09:03:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-23 09:03:12,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:12,568 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:03:12,607 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 09:03:12,789 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 09:03:12,789 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:12,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash -379727559, now seen corresponding path program 2 times [2023-11-23 09:03:12,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:12,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527874047] [2023-11-23 09:03:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:12,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:12,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:12,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641892871] [2023-11-23 09:03:12,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:03:12,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:12,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:12,940 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 09:03:13,012 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 09:03:13,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:03:13,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:03:13,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 3051 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:13,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-23 09:03:13,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:13,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527874047] [2023-11-23 09:03:13,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641892871] [2023-11-23 09:03:13,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641892871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:13,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:13,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:03:13,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244788160] [2023-11-23 09:03:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:13,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:13,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:13,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:13,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:13,906 INFO L87 Difference]: Start difference. First operand 354 states and 521 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 09:03:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:14,549 INFO L93 Difference]: Finished difference Result 644 states and 958 transitions. [2023-11-23 09:03:14,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:03:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 215 [2023-11-23 09:03:14,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:14,553 INFO L225 Difference]: With dead ends: 644 [2023-11-23 09:03:14,553 INFO L226 Difference]: Without dead ends: 356 [2023-11-23 09:03:14,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:14,555 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 125 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:14,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2966 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:03:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-23 09:03:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-11-23 09:03:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 211 states have (on average 1.2654028436018958) internal successors, (267), 215 states have internal predecessors, (267), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2023-11-23 09:03:14,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 526 transitions. [2023-11-23 09:03:14,610 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 526 transitions. Word has length 215 [2023-11-23 09:03:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:14,613 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 526 transitions. [2023-11-23 09:03:14,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 09:03:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 526 transitions. [2023-11-23 09:03:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-11-23 09:03:14,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:14,617 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:14,640 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 09:03:14,824 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 09:03:14,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:14,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:14,825 INFO L85 PathProgramCache]: Analyzing trace with hash -72286595, now seen corresponding path program 1 times [2023-11-23 09:03:14,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:14,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196784215] [2023-11-23 09:03:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:14,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:14,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:14,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462760869] [2023-11-23 09:03:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:14,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:14,905 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 09:03:14,916 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 09:03:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:15,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 09:03:15,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 09:03:15,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196784215] [2023-11-23 09:03:15,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462760869] [2023-11-23 09:03:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462760869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:15,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:03:15,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510093213] [2023-11-23 09:03:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:15,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:03:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:03:15,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:15,705 INFO L87 Difference]: Start difference. First operand 356 states and 526 transitions. Second operand has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:16,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:16,933 INFO L93 Difference]: Finished difference Result 671 states and 1003 transitions. [2023-11-23 09:03:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:03:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 218 [2023-11-23 09:03:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:16,937 INFO L225 Difference]: With dead ends: 671 [2023-11-23 09:03:16,937 INFO L226 Difference]: Without dead ends: 372 [2023-11-23 09:03:16,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:03:16,940 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 168 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:16,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 3188 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 09:03:16,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-23 09:03:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 340. [2023-11-23 09:03:16,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 197 states have (on average 1.2588832487309645) internal successors, (248), 201 states have internal predecessors, (248), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2023-11-23 09:03:16,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 497 transitions. [2023-11-23 09:03:16,976 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 497 transitions. Word has length 218 [2023-11-23 09:03:16,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:16,976 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 497 transitions. [2023-11-23 09:03:16,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 states have internal predecessors, (91), 6 states have call successors, (27), 3 states have call predecessors, (27), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:16,977 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 497 transitions. [2023-11-23 09:03:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-23 09:03:16,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:16,980 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:17,019 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 09:03:17,201 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 09:03:17,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:17,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:17,202 INFO L85 PathProgramCache]: Analyzing trace with hash 761859979, now seen corresponding path program 1 times [2023-11-23 09:03:17,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:17,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861443862] [2023-11-23 09:03:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:17,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:17,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:17,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2737664] [2023-11-23 09:03:17,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:17,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:17,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:17,344 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 09:03:17,404 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 09:03:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:18,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:03:18,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 09:03:18,496 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:18,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861443862] [2023-11-23 09:03:18,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2737664] [2023-11-23 09:03:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2737664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:18,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:18,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:03:18,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497571857] [2023-11-23 09:03:18,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:18,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:03:18,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:03:18,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:18,499 INFO L87 Difference]: Start difference. First operand 340 states and 497 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:03:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:19,393 INFO L93 Difference]: Finished difference Result 617 states and 913 transitions. [2023-11-23 09:03:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:03:19,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 257 [2023-11-23 09:03:19,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:19,397 INFO L225 Difference]: With dead ends: 617 [2023-11-23 09:03:19,397 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:03:19,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:03:19,399 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 147 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:19,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3277 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 09:03:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:03:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2023-11-23 09:03:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 198 states have (on average 1.2575757575757576) internal successors, (249), 202 states have internal predecessors, (249), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (134), 114 states have call predecessors, (134), 113 states have call successors, (134) [2023-11-23 09:03:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 498 transitions. [2023-11-23 09:03:19,435 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 498 transitions. Word has length 257 [2023-11-23 09:03:19,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:19,435 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 498 transitions. [2023-11-23 09:03:19,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:03:19,436 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 498 transitions. [2023-11-23 09:03:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-23 09:03:19,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:19,439 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:19,488 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 09:03:19,656 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 09:03:19,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:19,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:19,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2089687538, now seen corresponding path program 1 times [2023-11-23 09:03:19,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:19,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035446658] [2023-11-23 09:03:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:19,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:19,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:19,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050584024] [2023-11-23 09:03:19,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:19,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:19,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:19,795 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 09:03:19,852 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 09:03:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:20,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 3097 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:20,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:20,788 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2023-11-23 09:03:20,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:20,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:20,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035446658] [2023-11-23 09:03:20,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:20,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050584024] [2023-11-23 09:03:20,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050584024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:20,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:20,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:03:20,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077303161] [2023-11-23 09:03:20,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:20,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:03:20,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:20,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:03:20,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:03:20,791 INFO L87 Difference]: Start difference. First operand 341 states and 498 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 09:03:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:21,204 INFO L93 Difference]: Finished difference Result 591 states and 869 transitions. [2023-11-23 09:03:21,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:03:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 233 [2023-11-23 09:03:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:21,208 INFO L225 Difference]: With dead ends: 591 [2023-11-23 09:03:21,208 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:03:21,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:03:21,210 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 114 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:21,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2599 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:03:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:03:21,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-11-23 09:03:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 199 states have (on average 1.256281407035176) internal successors, (250), 204 states have internal predecessors, (250), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2023-11-23 09:03:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 501 transitions. [2023-11-23 09:03:21,230 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 501 transitions. Word has length 233 [2023-11-23 09:03:21,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:21,231 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 501 transitions. [2023-11-23 09:03:21,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-23 09:03:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 501 transitions. [2023-11-23 09:03:21,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-23 09:03:21,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:21,234 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:21,260 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 09:03:21,449 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 09:03:21,449 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:21,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash -219509479, now seen corresponding path program 1 times [2023-11-23 09:03:21,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:21,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120041361] [2023-11-23 09:03:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:21,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:21,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:21,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2070313814] [2023-11-23 09:03:21,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:21,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:21,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:21,566 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 09:03:21,575 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 09:03:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:22,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 3286 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 09:03:22,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-23 09:03:22,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:22,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:22,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120041361] [2023-11-23 09:03:22,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:22,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070313814] [2023-11-23 09:03:22,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070313814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:22,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:22,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:03:22,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850391255] [2023-11-23 09:03:22,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:22,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:22,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:22,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:22,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:03:22,277 INFO L87 Difference]: Start difference. First operand 343 states and 501 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:03:22,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:22,946 INFO L93 Difference]: Finished difference Result 593 states and 870 transitions. [2023-11-23 09:03:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:03:22,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 254 [2023-11-23 09:03:22,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:22,949 INFO L225 Difference]: With dead ends: 593 [2023-11-23 09:03:22,949 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:03:22,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:22,951 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 133 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:22,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2918 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:03:22,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:03:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2023-11-23 09:03:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 198 states have (on average 1.2575757575757576) internal successors, (249), 202 states have internal predecessors, (249), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2023-11-23 09:03:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 496 transitions. [2023-11-23 09:03:22,967 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 496 transitions. Word has length 254 [2023-11-23 09:03:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:22,967 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 496 transitions. [2023-11-23 09:03:22,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-23 09:03:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 496 transitions. [2023-11-23 09:03:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-11-23 09:03:22,970 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:22,970 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:22,995 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 09:03:23,192 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 09:03:23,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:23,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1821644509, now seen corresponding path program 1 times [2023-11-23 09:03:23,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:23,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642700143] [2023-11-23 09:03:23,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:23,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:23,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:23,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836666383] [2023-11-23 09:03:23,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:23,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:23,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:23,268 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 09:03:23,269 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 09:03:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:24,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 3497 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 09:03:24,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2023-11-23 09:03:24,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:24,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642700143] [2023-11-23 09:03:24,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:24,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836666383] [2023-11-23 09:03:24,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836666383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:24,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:24,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:03:24,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711491220] [2023-11-23 09:03:24,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:24,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:03:24,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:03:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:24,322 INFO L87 Difference]: Start difference. First operand 341 states and 496 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 8 states have internal predecessors, (71), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:25,036 INFO L93 Difference]: Finished difference Result 595 states and 872 transitions. [2023-11-23 09:03:25,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:03:25,037 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 8 states have internal predecessors, (71), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 283 [2023-11-23 09:03:25,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:25,039 INFO L225 Difference]: With dead ends: 595 [2023-11-23 09:03:25,040 INFO L226 Difference]: Without dead ends: 352 [2023-11-23 09:03:25,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:25,041 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 110 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:25,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 3334 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 09:03:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-23 09:03:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-11-23 09:03:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 203 states have (on average 1.2561576354679802) internal successors, (255), 207 states have internal predecessors, (255), 120 states have call successors, (120), 25 states have call predecessors, (120), 27 states have return successors, (137), 119 states have call predecessors, (137), 118 states have call successors, (137) [2023-11-23 09:03:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 512 transitions. [2023-11-23 09:03:25,059 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 512 transitions. Word has length 283 [2023-11-23 09:03:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:25,059 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 512 transitions. [2023-11-23 09:03:25,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 8 states have internal predecessors, (71), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 09:03:25,060 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 512 transitions. [2023-11-23 09:03:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-23 09:03:25,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:25,062 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:25,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:25,284 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 09:03:25,284 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:25,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:25,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1218086235, now seen corresponding path program 1 times [2023-11-23 09:03:25,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:25,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985239531] [2023-11-23 09:03:25,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:25,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:25,350 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:25,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1518260104] [2023-11-23 09:03:25,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:25,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:25,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:25,352 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 09:03:25,379 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 09:03:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:26,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 3295 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 09:03:26,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-23 09:03:26,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:03:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 50 proven. 28 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2023-11-23 09:03:26,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985239531] [2023-11-23 09:03:26,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:26,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518260104] [2023-11-23 09:03:26,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518260104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:03:26,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:03:26,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2023-11-23 09:03:26,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309767563] [2023-11-23 09:03:26,815 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:03:26,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-23 09:03:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:26,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-23 09:03:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-11-23 09:03:26,817 INFO L87 Difference]: Start difference. First operand 352 states and 512 transitions. Second operand has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2023-11-23 09:03:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:27,939 INFO L93 Difference]: Finished difference Result 657 states and 966 transitions. [2023-11-23 09:03:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:03:27,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) Word has length 263 [2023-11-23 09:03:27,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:27,948 INFO L225 Difference]: With dead ends: 657 [2023-11-23 09:03:27,948 INFO L226 Difference]: Without dead ends: 371 [2023-11-23 09:03:27,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 507 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-11-23 09:03:27,951 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 233 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:27,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 4434 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:03:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-11-23 09:03:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 368. [2023-11-23 09:03:28,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 217 states have (on average 1.262672811059908) internal successors, (274), 221 states have internal predecessors, (274), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (142), 121 states have call predecessors, (142), 119 states have call successors, (142) [2023-11-23 09:03:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 537 transitions. [2023-11-23 09:03:28,007 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 537 transitions. Word has length 263 [2023-11-23 09:03:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:28,008 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 537 transitions. [2023-11-23 09:03:28,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 14 states have internal predecessors, (120), 11 states have call successors, (46), 6 states have call predecessors, (46), 4 states have return successors, (41), 7 states have call predecessors, (41), 11 states have call successors, (41) [2023-11-23 09:03:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 537 transitions. [2023-11-23 09:03:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 09:03:28,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:28,011 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:28,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:28,232 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 09:03:28,233 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:28,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:28,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2130616805, now seen corresponding path program 1 times [2023-11-23 09:03:28,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:28,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055342716] [2023-11-23 09:03:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:28,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:28,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:28,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778508530] [2023-11-23 09:03:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:28,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:28,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:28,436 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 09:03:28,500 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 09:03:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:29,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 3851 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-23 09:03:29,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:29,768 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 09:03:29,770 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 09:03:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 470 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-11-23 09:03:29,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:29,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055342716] [2023-11-23 09:03:29,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:29,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778508530] [2023-11-23 09:03:29,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778508530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:29,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:29,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 09:03:29,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23334934] [2023-11-23 09:03:29,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:29,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:03:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:29,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:03:29,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:29,810 INFO L87 Difference]: Start difference. First operand 368 states and 537 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:03:31,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:31,507 INFO L93 Difference]: Finished difference Result 771 states and 1160 transitions. [2023-11-23 09:03:31,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 09:03:31,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 315 [2023-11-23 09:03:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:31,510 INFO L225 Difference]: With dead ends: 771 [2023-11-23 09:03:31,511 INFO L226 Difference]: Without dead ends: 434 [2023-11-23 09:03:31,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2023-11-23 09:03:31,515 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 88 mSDsluCounter, 3730 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:31,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 4133 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 09:03:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-23 09:03:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 399. [2023-11-23 09:03:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 247 states have (on average 1.2753036437246963) internal successors, (315), 250 states have internal predecessors, (315), 121 states have call successors, (121), 25 states have call predecessors, (121), 29 states have return successors, (155), 123 states have call predecessors, (155), 119 states have call successors, (155) [2023-11-23 09:03:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 591 transitions. [2023-11-23 09:03:31,551 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 591 transitions. Word has length 315 [2023-11-23 09:03:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 591 transitions. [2023-11-23 09:03:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:03:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 591 transitions. [2023-11-23 09:03:31,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 09:03:31,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:31,567 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:31,627 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 09:03:31,788 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 09:03:31,788 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:31,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:31,789 INFO L85 PathProgramCache]: Analyzing trace with hash -742108013, now seen corresponding path program 1 times [2023-11-23 09:03:31,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823559420] [2023-11-23 09:03:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:31,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:31,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708677630] [2023-11-23 09:03:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:31,964 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 09:03:32,040 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 09:03:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:32,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 3831 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:03:32,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-11-23 09:03:33,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:33,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823559420] [2023-11-23 09:03:33,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708677630] [2023-11-23 09:03:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708677630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:03:33,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293840087] [2023-11-23 09:03:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:33,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:03:33,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:03:33,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:33,011 INFO L87 Difference]: Start difference. First operand 399 states and 591 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:33,206 INFO L93 Difference]: Finished difference Result 770 states and 1192 transitions. [2023-11-23 09:03:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 315 [2023-11-23 09:03:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:33,212 INFO L225 Difference]: With dead ends: 770 [2023-11-23 09:03:33,212 INFO L226 Difference]: Without dead ends: 402 [2023-11-23 09:03:33,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 313 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 09:03:33,216 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 7 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:33,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1255 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:03:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-23 09:03:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 399. [2023-11-23 09:03:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 247 states have (on average 1.271255060728745) internal successors, (314), 250 states have internal predecessors, (314), 121 states have call successors, (121), 25 states have call predecessors, (121), 29 states have return successors, (155), 123 states have call predecessors, (155), 119 states have call successors, (155) [2023-11-23 09:03:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 590 transitions. [2023-11-23 09:03:33,235 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 590 transitions. Word has length 315 [2023-11-23 09:03:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:33,235 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 590 transitions. [2023-11-23 09:03:33,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 590 transitions. [2023-11-23 09:03:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-11-23 09:03:33,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:33,238 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:33,260 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 09:03:33,456 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 09:03:33,457 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:33,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:33,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2144670975, now seen corresponding path program 1 times [2023-11-23 09:03:33,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:33,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186736436] [2023-11-23 09:03:33,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:33,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:33,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:33,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452542459] [2023-11-23 09:03:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:33,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:33,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:33,541 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 09:03:33,559 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 09:03:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:34,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 3583 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 09:03:34,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:34,460 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2023-11-23 09:03:34,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:34,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:34,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186736436] [2023-11-23 09:03:34,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:34,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452542459] [2023-11-23 09:03:34,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452542459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:34,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:34,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 09:03:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179012950] [2023-11-23 09:03:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:34,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:03:34,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:34,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:03:34,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:03:34,464 INFO L87 Difference]: Start difference. First operand 399 states and 590 transitions. Second operand has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-11-23 09:03:35,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:35,698 INFO L93 Difference]: Finished difference Result 754 states and 1124 transitions. [2023-11-23 09:03:35,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 09:03:35,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 293 [2023-11-23 09:03:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:35,704 INFO L225 Difference]: With dead ends: 754 [2023-11-23 09:03:35,704 INFO L226 Difference]: Without dead ends: 421 [2023-11-23 09:03:35,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-23 09:03:35,707 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 198 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:35,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 3857 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 09:03:35,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-23 09:03:35,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 377. [2023-11-23 09:03:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 227 states have (on average 1.2643171806167401) internal successors, (287), 230 states have internal predecessors, (287), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 555 transitions. [2023-11-23 09:03:35,761 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 555 transitions. Word has length 293 [2023-11-23 09:03:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:35,761 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 555 transitions. [2023-11-23 09:03:35,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-11-23 09:03:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 555 transitions. [2023-11-23 09:03:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 09:03:35,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:35,765 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:35,812 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 09:03:35,988 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 09:03:35,988 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:35,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash 793550275, now seen corresponding path program 1 times [2023-11-23 09:03:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:35,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720980935] [2023-11-23 09:03:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:35,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:36,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:36,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319908385] [2023-11-23 09:03:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:36,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:36,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:36,166 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 09:03:36,204 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 09:03:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:37,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 3871 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:03:37,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-23 09:03:37,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720980935] [2023-11-23 09:03:37,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:37,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319908385] [2023-11-23 09:03:37,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319908385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:37,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:37,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:03:37,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864372747] [2023-11-23 09:03:37,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:37,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:03:37,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:37,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:03:37,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:03:37,758 INFO L87 Difference]: Start difference. First operand 377 states and 555 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:38,882 INFO L93 Difference]: Finished difference Result 777 states and 1160 transitions. [2023-11-23 09:03:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:03:38,883 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 323 [2023-11-23 09:03:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:38,886 INFO L225 Difference]: With dead ends: 777 [2023-11-23 09:03:38,886 INFO L226 Difference]: Without dead ends: 431 [2023-11-23 09:03:38,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 318 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 09:03:38,891 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 21 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:38,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1954 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 09:03:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-23 09:03:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 393. [2023-11-23 09:03:38,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 243 states have (on average 1.2633744855967077) internal successors, (307), 246 states have internal predecessors, (307), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:38,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 575 transitions. [2023-11-23 09:03:38,937 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 575 transitions. Word has length 323 [2023-11-23 09:03:38,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:38,938 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 575 transitions. [2023-11-23 09:03:38,938 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:38,938 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 575 transitions. [2023-11-23 09:03:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 09:03:38,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:38,944 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:38,988 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 09:03:39,158 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 09:03:39,159 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:39,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:39,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1615638347, now seen corresponding path program 1 times [2023-11-23 09:03:39,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:39,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97369449] [2023-11-23 09:03:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:39,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:39,236 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:39,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729757758] [2023-11-23 09:03:39,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:39,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:39,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:39,238 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 09:03:39,308 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 09:03:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:40,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 3859 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:03:40,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:40,104 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2023-11-23 09:03:40,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:40,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:40,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97369449] [2023-11-23 09:03:40,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:40,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729757758] [2023-11-23 09:03:40,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729757758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:40,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:40,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:03:40,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29505904] [2023-11-23 09:03:40,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:40,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:03:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:40,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:03:40,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:03:40,108 INFO L87 Difference]: Start difference. First operand 393 states and 575 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:40,320 INFO L93 Difference]: Finished difference Result 771 states and 1146 transitions. [2023-11-23 09:03:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:03:40,321 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 323 [2023-11-23 09:03:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:40,324 INFO L225 Difference]: With dead ends: 771 [2023-11-23 09:03:40,324 INFO L226 Difference]: Without dead ends: 409 [2023-11-23 09:03:40,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 320 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 09:03:40,326 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 3 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:40,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1247 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:03:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-23 09:03:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-11-23 09:03:40,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 251 states have (on average 1.254980079681275) internal successors, (315), 254 states have internal predecessors, (315), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 583 transitions. [2023-11-23 09:03:40,345 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 583 transitions. Word has length 323 [2023-11-23 09:03:40,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:40,345 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 583 transitions. [2023-11-23 09:03:40,345 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, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:40,345 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 583 transitions. [2023-11-23 09:03:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 09:03:40,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:40,348 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:40,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:40,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-23 09:03:40,563 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:40,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -810319149, now seen corresponding path program 1 times [2023-11-23 09:03:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:40,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637065881] [2023-11-23 09:03:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:40,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:40,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:40,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532076773] [2023-11-23 09:03:40,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:40,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:40,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:40,644 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:40,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 09:03:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:41,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 3839 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 09:03:41,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:41,718 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 11 treesize of output 5 [2023-11-23 09:03:41,741 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2023-11-23 09:03:41,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:41,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637065881] [2023-11-23 09:03:41,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532076773] [2023-11-23 09:03:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532076773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:41,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:41,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 09:03:41,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567305318] [2023-11-23 09:03:41,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:41,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 09:03:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 09:03:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:03:41,744 INFO L87 Difference]: Start difference. First operand 401 states and 583 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 09:03:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:42,672 INFO L93 Difference]: Finished difference Result 802 states and 1194 transitions. [2023-11-23 09:03:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 09:03:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 323 [2023-11-23 09:03:42,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:42,676 INFO L225 Difference]: With dead ends: 802 [2023-11-23 09:03:42,676 INFO L226 Difference]: Without dead ends: 432 [2023-11-23 09:03:42,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-23 09:03:42,679 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 85 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2984 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:42,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2984 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 09:03:42,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-23 09:03:42,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2023-11-23 09:03:42,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 233 states have (on average 1.2360515021459229) internal successors, (288), 236 states have internal predecessors, (288), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 556 transitions. [2023-11-23 09:03:42,698 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 556 transitions. Word has length 323 [2023-11-23 09:03:42,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:42,698 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 556 transitions. [2023-11-23 09:03:42,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2023-11-23 09:03:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 556 transitions. [2023-11-23 09:03:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 09:03:42,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:42,701 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:42,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:42,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 09:03:42,917 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:42,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:42,917 INFO L85 PathProgramCache]: Analyzing trace with hash -152424885, now seen corresponding path program 1 times [2023-11-23 09:03:42,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:42,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451482068] [2023-11-23 09:03:42,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:42,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:43,008 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:43,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623504180] [2023-11-23 09:03:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:43,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:43,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:43,010 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:43,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 09:03:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:44,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 3819 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 09:03:44,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-23 09:03:44,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:44,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:44,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451482068] [2023-11-23 09:03:44,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:44,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623504180] [2023-11-23 09:03:44,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623504180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:44,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:44,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 09:03:44,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775997951] [2023-11-23 09:03:44,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:44,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:03:44,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:03:44,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:03:44,167 INFO L87 Difference]: Start difference. First operand 383 states and 556 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:45,031 INFO L93 Difference]: Finished difference Result 735 states and 1112 transitions. [2023-11-23 09:03:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 09:03:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 323 [2023-11-23 09:03:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:45,035 INFO L225 Difference]: With dead ends: 735 [2023-11-23 09:03:45,035 INFO L226 Difference]: Without dead ends: 383 [2023-11-23 09:03:45,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:03:45,038 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 10 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:45,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1614 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 09:03:45,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-23 09:03:45,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2023-11-23 09:03:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 233 states have (on average 1.2317596566523605) internal successors, (287), 236 states have internal predecessors, (287), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:45,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 555 transitions. [2023-11-23 09:03:45,093 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 555 transitions. Word has length 323 [2023-11-23 09:03:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:45,094 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 555 transitions. [2023-11-23 09:03:45,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-23 09:03:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 555 transitions. [2023-11-23 09:03:45,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-23 09:03:45,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:45,110 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 09:03:45,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:45,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:45,324 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:45,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:45,325 INFO L85 PathProgramCache]: Analyzing trace with hash 826799571, now seen corresponding path program 1 times [2023-11-23 09:03:45,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:45,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378353303] [2023-11-23 09:03:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:45,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:45,394 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126581406] [2023-11-23 09:03:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:45,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:45,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:45,396 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:45,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 09:03:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:47,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 3839 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 09:03:47,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 288 proven. 6 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-11-23 09:03:47,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:03:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2023-11-23 09:03:47,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:47,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378353303] [2023-11-23 09:03:47,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:47,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126581406] [2023-11-23 09:03:47,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126581406] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 09:03:47,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:03:47,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-11-23 09:03:47,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229135824] [2023-11-23 09:03:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:47,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:03:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:03:47,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:03:47,727 INFO L87 Difference]: Start difference. First operand 383 states and 555 transitions. Second operand has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 09:03:48,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:48,264 INFO L93 Difference]: Finished difference Result 716 states and 1053 transitions. [2023-11-23 09:03:48,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:03:48,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 323 [2023-11-23 09:03:48,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:48,268 INFO L225 Difference]: With dead ends: 716 [2023-11-23 09:03:48,268 INFO L226 Difference]: Without dead ends: 419 [2023-11-23 09:03:48,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-23 09:03:48,270 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 81 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:48,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 3124 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:03:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-23 09:03:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 384. [2023-11-23 09:03:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 234 states have (on average 1.2307692307692308) internal successors, (288), 237 states have internal predecessors, (288), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (148), 121 states have call predecessors, (148), 118 states have call successors, (148) [2023-11-23 09:03:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 556 transitions. [2023-11-23 09:03:48,291 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 556 transitions. Word has length 323 [2023-11-23 09:03:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:48,291 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 556 transitions. [2023-11-23 09:03:48,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 5 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 09:03:48,292 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 556 transitions. [2023-11-23 09:03:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-23 09:03:48,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:48,294 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:03:48,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:48,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:48,520 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:48,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2144221563, now seen corresponding path program 1 times [2023-11-23 09:03:48,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:48,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550042767] [2023-11-23 09:03:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:48,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:48,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:48,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [745392950] [2023-11-23 09:03:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:48,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:48,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:48,689 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:48,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-23 09:03:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:49,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 3483 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 09:03:49,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 314 proven. 3 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-23 09:03:49,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 09:03:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2023-11-23 09:03:50,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:50,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550042767] [2023-11-23 09:03:50,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:50,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745392950] [2023-11-23 09:03:50,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745392950] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 09:03:50,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 09:03:50,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-23 09:03:50,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530371828] [2023-11-23 09:03:50,210 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 09:03:50,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 09:03:50,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:50,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 09:03:50,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:03:50,212 INFO L87 Difference]: Start difference. First operand 384 states and 556 transitions. Second operand has 16 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2023-11-23 09:03:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:51,300 INFO L93 Difference]: Finished difference Result 703 states and 1021 transitions. [2023-11-23 09:03:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 09:03:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) Word has length 287 [2023-11-23 09:03:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:51,307 INFO L225 Difference]: With dead ends: 703 [2023-11-23 09:03:51,307 INFO L226 Difference]: Without dead ends: 413 [2023-11-23 09:03:51,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 557 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-23 09:03:51,309 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 188 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 4475 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:51,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 4475 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 09:03:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-23 09:03:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2023-11-23 09:03:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 256 states have (on average 1.23046875) internal successors, (315), 258 states have internal predecessors, (315), 121 states have call successors, (121), 25 states have call predecessors, (121), 28 states have return successors, (149), 123 states have call predecessors, (149), 119 states have call successors, (149) [2023-11-23 09:03:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 585 transitions. [2023-11-23 09:03:51,329 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 585 transitions. Word has length 287 [2023-11-23 09:03:51,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:51,330 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 585 transitions. [2023-11-23 09:03:51,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.5) internal successors, (119), 14 states have internal predecessors, (119), 11 states have call successors, (51), 4 states have call predecessors, (51), 4 states have return successors, (47), 7 states have call predecessors, (47), 11 states have call successors, (47) [2023-11-23 09:03:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 585 transitions. [2023-11-23 09:03:51,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-11-23 09:03:51,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:51,333 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:51,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:51,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 09:03:51,548 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:51,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:51,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2013393015, now seen corresponding path program 2 times [2023-11-23 09:03:51,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:51,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544939474] [2023-11-23 09:03:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:51,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:51,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:51,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456941541] [2023-11-23 09:03:51,694 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:03:51,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:51,708 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:51,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-23 09:03:53,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:03:53,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:03:53,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 09:03:53,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-23 09:03:53,433 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:53,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:53,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544939474] [2023-11-23 09:03:53,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:53,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456941541] [2023-11-23 09:03:53,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456941541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:53,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:53,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 09:03:53,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967876252] [2023-11-23 09:03:53,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 09:03:53,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:53,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 09:03:53,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:03:53,436 INFO L87 Difference]: Start difference. First operand 407 states and 585 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 09:03:54,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:54,105 INFO L93 Difference]: Finished difference Result 746 states and 1073 transitions. [2023-11-23 09:03:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 09:03:54,106 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) Word has length 300 [2023-11-23 09:03:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:54,108 INFO L225 Difference]: With dead ends: 746 [2023-11-23 09:03:54,109 INFO L226 Difference]: Without dead ends: 433 [2023-11-23 09:03:54,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-23 09:03:54,111 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 184 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3515 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:54,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3515 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 09:03:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-23 09:03:54,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 381. [2023-11-23 09:03:54,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 232 states have (on average 1.2327586206896552) internal successors, (286), 234 states have internal predecessors, (286), 120 states have call successors, (120), 25 states have call predecessors, (120), 27 states have return successors, (144), 121 states have call predecessors, (144), 118 states have call successors, (144) [2023-11-23 09:03:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 550 transitions. [2023-11-23 09:03:54,129 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 550 transitions. Word has length 300 [2023-11-23 09:03:54,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:54,129 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 550 transitions. [2023-11-23 09:03:54,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 7 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (28), 6 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-23 09:03:54,130 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 550 transitions. [2023-11-23 09:03:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 09:03:54,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:54,132 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:54,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-23 09:03:54,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-23 09:03:54,348 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:54,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1542263201, now seen corresponding path program 1 times [2023-11-23 09:03:54,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:54,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404276556] [2023-11-23 09:03:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:54,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:54,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:54,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811006121] [2023-11-23 09:03:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:54,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:54,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:54,423 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:03:54,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-23 09:03:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:55,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 3766 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-23 09:03:55,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:55,761 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |c_aws_mul_size_checked_#in~r#1.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select (select |c_#memory_$Pointer$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|)))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| (select (select |c_#memory_$Pointer$.offset| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))) |c_#memory_$Pointer$.offset|))) is different from true [2023-11-23 09:03:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-11-23 09:03:56,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:56,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:56,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404276556] [2023-11-23 09:03:56,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:56,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811006121] [2023-11-23 09:03:56,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811006121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:56,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:56,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-11-23 09:03:56,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171487359] [2023-11-23 09:03:56,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:56,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 09:03:56,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:56,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 09:03:56,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=356, Unknown=19, NotChecked=38, Total=462 [2023-11-23 09:03:56,269 INFO L87 Difference]: Start difference. First operand 381 states and 550 transitions. Second operand has 22 states, 20 states have (on average 4.9) internal successors, (98), 19 states have internal predecessors, (98), 10 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) [2023-11-23 09:03:58,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:01,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:07,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:19,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:21,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:33,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:39,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:42,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:45,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:49,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:56,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:03,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:05,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:07,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:09,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:11,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:05:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:05:20,596 INFO L93 Difference]: Finished difference Result 911 states and 1475 transitions. [2023-11-23 09:05:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 09:05:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.9) internal successors, (98), 19 states have internal predecessors, (98), 10 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) Word has length 315 [2023-11-23 09:05:20,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:05:20,613 INFO L225 Difference]: With dead ends: 911 [2023-11-23 09:05:20,613 INFO L226 Difference]: Without dead ends: 634 [2023-11-23 09:05:20,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=212, Invalid=1657, Unknown=27, NotChecked=84, Total=1980 [2023-11-23 09:05:20,615 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 387 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 5588 mSolverCounterSat, 313 mSolverCounterUnsat, 53 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 4437 SdHoareTripleChecker+Invalid, 6876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 5588 IncrementalHoareTripleChecker+Invalid, 53 IncrementalHoareTripleChecker+Unknown, 922 IncrementalHoareTripleChecker+Unchecked, 79.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:05:20,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 4437 Invalid, 6876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [313 Valid, 5588 Invalid, 53 Unknown, 922 Unchecked, 79.2s Time] [2023-11-23 09:05:20,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-11-23 09:05:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 390. [2023-11-23 09:05:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 236 states have (on average 1.228813559322034) internal successors, (290), 240 states have internal predecessors, (290), 124 states have call successors, (124), 25 states have call predecessors, (124), 28 states have return successors, (163), 124 states have call predecessors, (163), 122 states have call successors, (163) [2023-11-23 09:05:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 577 transitions. [2023-11-23 09:05:20,651 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 577 transitions. Word has length 315 [2023-11-23 09:05:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:05:20,652 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 577 transitions. [2023-11-23 09:05:20,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.9) internal successors, (98), 19 states have internal predecessors, (98), 10 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (29), 9 states have call predecessors, (29), 10 states have call successors, (29) [2023-11-23 09:05:20,652 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 577 transitions. [2023-11-23 09:05:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-11-23 09:05:20,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:05:20,655 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:05:20,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-23 09:05:20,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-23 09:05:20,882 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:05:20,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:05:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1098362527, now seen corresponding path program 1 times [2023-11-23 09:05:20,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:05:20,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83848393] [2023-11-23 09:05:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:20,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:05:20,958 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:05:20,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1169071273] [2023-11-23 09:05:20,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:20,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:05:20,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:05:20,960 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:05:20,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-23 09:05:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:05:22,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 3761 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-23 09:05:22,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:05:23,908 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2023-11-23 09:05:23,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:05:23,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:05:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83848393] [2023-11-23 09:05:23,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:05:23,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169071273] [2023-11-23 09:05:23,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169071273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:05:23,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:05:23,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 09:05:23,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363909739] [2023-11-23 09:05:23,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:05:23,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 09:05:23,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:05:23,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 09:05:23,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:05:23,910 INFO L87 Difference]: Start difference. First operand 390 states and 577 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 7 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 09:05:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:05:30,711 INFO L93 Difference]: Finished difference Result 667 states and 989 transitions. [2023-11-23 09:05:30,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 09:05:30,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 7 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 315 [2023-11-23 09:05:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:05:30,715 INFO L225 Difference]: With dead ends: 667 [2023-11-23 09:05:30,715 INFO L226 Difference]: Without dead ends: 384 [2023-11-23 09:05:30,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2023-11-23 09:05:30,717 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 92 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:05:30,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 3155 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-23 09:05:30,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-23 09:05:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2023-11-23 09:05:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 234 states have (on average 1.2264957264957266) internal successors, (287), 237 states have internal predecessors, (287), 120 states have call successors, (120), 25 states have call predecessors, (120), 28 states have return successors, (155), 121 states have call predecessors, (155), 118 states have call successors, (155) [2023-11-23 09:05:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 562 transitions. [2023-11-23 09:05:30,771 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 562 transitions. Word has length 315 [2023-11-23 09:05:30,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:05:30,773 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 562 transitions. [2023-11-23 09:05:30,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 states have internal predecessors, (84), 7 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 09:05:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 562 transitions. [2023-11-23 09:05:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-11-23 09:05:30,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:05:30,777 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:05:30,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-23 09:05:30,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-23 09:05:30,993 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:05:30,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:05:30,994 INFO L85 PathProgramCache]: Analyzing trace with hash -541284259, now seen corresponding path program 1 times [2023-11-23 09:05:30,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:05:30,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054395745] [2023-11-23 09:05:30,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:30,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:05:31,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:05:31,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813702763] [2023-11-23 09:05:31,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:31,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:05:31,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:05:31,223 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:05:31,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-23 09:05:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:05:32,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 3616 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 09:05:32,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:05:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2023-11-23 09:05:33,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:05:33,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:05:33,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054395745] [2023-11-23 09:05:33,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:05:33,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813702763] [2023-11-23 09:05:33,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813702763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:05:33,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:05:33,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 09:05:33,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539554770] [2023-11-23 09:05:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:05:33,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 09:05:33,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:05:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 09:05:33,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-23 09:05:33,288 INFO L87 Difference]: Start difference. First operand 384 states and 562 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 09:05:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:05:38,215 INFO L93 Difference]: Finished difference Result 714 states and 1066 transitions. [2023-11-23 09:05:38,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:05:38,216 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) Word has length 309 [2023-11-23 09:05:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:05:38,219 INFO L225 Difference]: With dead ends: 714 [2023-11-23 09:05:38,219 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 09:05:38,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 09:05:38,221 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 129 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-23 09:05:38,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 3677 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-23 09:05:38,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 09:05:38,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2023-11-23 09:05:38,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 241 states have (on average 1.2240663900414939) internal successors, (295), 244 states have internal predecessors, (295), 129 states have call successors, (129), 26 states have call predecessors, (129), 29 states have return successors, (170), 130 states have call predecessors, (170), 127 states have call successors, (170) [2023-11-23 09:05:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 594 transitions. [2023-11-23 09:05:38,288 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 594 transitions. Word has length 309 [2023-11-23 09:05:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:05:38,289 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 594 transitions. [2023-11-23 09:05:38,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 6 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (27), 5 states have call predecessors, (27), 6 states have call successors, (27) [2023-11-23 09:05:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 594 transitions. [2023-11-23 09:05:38,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-11-23 09:05:38,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:05:38,291 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 09:05:38,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-23 09:05:38,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-23 09:05:38,512 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:05:38,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:05:38,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1690134059, now seen corresponding path program 1 times [2023-11-23 09:05:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:05:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46339312] [2023-11-23 09:05:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:38,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:05:38,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:05:38,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5740875] [2023-11-23 09:05:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:05:38,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:05:38,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:05:38,683 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 09:05:38,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-23 09:05:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:05:42,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 3776 conjuncts, 360 conjunts are in the unsatisfiable core [2023-11-23 09:05:42,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:05:42,095 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