./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_down_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_down_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 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 09:02:36,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 09:02:36,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 09:02:36,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 09:02:36,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 09:02:36,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 09:02:36,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 09:02:36,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 09:02:36,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 09:02:36,287 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 09:02:36,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 09:02:36,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 09:02:36,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 09:02:36,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 09:02:36,289 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 09:02:36,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 09:02:36,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 09:02:36,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 09:02:36,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 09:02:36,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 09:02:36,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 09:02:36,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 09:02:36,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 09:02:36,290 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 09:02:36,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 09:02:36,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 09:02:36,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 09:02:36,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 09:02:36,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:02:36,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 09:02:36,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 09:02:36,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 09:02:36,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 09:02:36,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 09:02:36,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d3eb02e894c2acef7732d0e57c112cc2c197f8f03d7c13822f169fbed4dc5e5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 09:02:36,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 09:02:36,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 09:02:36,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 09:02:36,506 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 09:02:36,507 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 09:02:36,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2023-11-23 09:02:37,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 09:02:37,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 09:02:37,853 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_priority_queue_s_sift_down_harness.i [2023-11-23 09:02:37,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a52d902cb/7e70bce531ed4f1781fd85447d2b669f/FLAGd4fb6db0d [2023-11-23 09:02:37,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a52d902cb/7e70bce531ed4f1781fd85447d2b669f [2023-11-23 09:02:37,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 09:02:37,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 09:02:37,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 09:02:37,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 09:02:37,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 09:02:37,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:02:37" (1/1) ... [2023-11-23 09:02:37,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252c534e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:37, skipping insertion in model container [2023-11-23 09:02:37,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:02:37" (1/1) ... [2023-11-23 09:02:38,022 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 09:02:38,181 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_down_harness.i[4504,4517] [2023-11-23 09:02:38,188 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_down_harness.i[4564,4577] [2023-11-23 09:02:38,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,658 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,659 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,667 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,669 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,670 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,672 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,673 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,673 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,673 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,842 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:02:38,843 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:02:38,843 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:02:38,844 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:02:38,845 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:02:38,845 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:02:38,845 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:02:38,846 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:02:38,846 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:02:38,847 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:02:38,960 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,961 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,964 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:38,974 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,033 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,037 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,037 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,038 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,038 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,039 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,039 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,039 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,042 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,042 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,042 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,043 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,048 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,049 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,057 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,057 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:02:39,099 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 09:02:39,108 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_down_harness.i[4504,4517] [2023-11-23 09:02:39,109 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_down_harness.i[4564,4577] [2023-11-23 09:02:39,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,164 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,167 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,168 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,168 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,168 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,169 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,189 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,189 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,206 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 09:02:39,206 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 09:02:39,207 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 09:02:39,207 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 09:02:39,208 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 09:02:39,208 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 09:02:39,208 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 09:02:39,209 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 09:02:39,209 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 09:02:39,209 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 09:02:39,237 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,237 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,238 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,240 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7776-7787] [2023-11-23 09:02:39,260 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,261 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,261 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,261 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,261 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,262 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,263 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,264 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,267 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,267 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,272 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 09:02:39,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 09:02:39,431 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,432 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,433 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,434 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,434 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 09:02:39,439 INFO L206 MainTranslator]: Completed translation [2023-11-23 09:02:39,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39 WrapperNode [2023-11-23 09:02:39,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 09:02:39,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 09:02:39,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 09:02:39,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 09:02:39,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,570 INFO L138 Inliner]: procedures = 696, calls = 1906, calls flagged for inlining = 59, calls inlined = 14, statements flattened = 845 [2023-11-23 09:02:39,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 09:02:39,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 09:02:39,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 09:02:39,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 09:02:39,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,650 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 09:02:39,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 09:02:39,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 09:02:39,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 09:02:39,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (1/1) ... [2023-11-23 09:02:39,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 09:02:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:39,709 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 09:02:39,725 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 09:02:39,745 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2023-11-23 09:02:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2023-11-23 09:02:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 09:02:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 09:02:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 09:02:39,746 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-23 09:02:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-23 09:02:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 09:02:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 09:02:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 09:02:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 09:02:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 09:02:39,747 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 09:02:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 09:02:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 09:02:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 09:02:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 09:02:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 09:02:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 09:02:39,748 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-23 09:02:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-23 09:02:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 09:02:39,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 09:02:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 09:02:39,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 09:02:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2023-11-23 09:02:39,750 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2023-11-23 09:02:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 09:02:39,750 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 09:02:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 09:02:39,750 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 09:02:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2023-11-23 09:02:39,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2023-11-23 09:02:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-23 09:02:39,751 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-23 09:02:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 09:02:39,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 09:02:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-23 09:02:39,754 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-23 09:02:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 09:02:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 09:02:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_down [2023-11-23 09:02:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_down [2023-11-23 09:02:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 09:02:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-23 09:02:39,755 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-23 09:02:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 09:02:39,758 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 09:02:39,758 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 09:02:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 09:02:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 09:02:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:02:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-23 09:02:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:02:39,759 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2023-11-23 09:02:39,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:02:39,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 09:02:39,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 09:02:40,017 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 09:02:40,019 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 09:02:40,755 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 09:02:40,859 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 09:02:40,860 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 09:02:40,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:02:40 BoogieIcfgContainer [2023-11-23 09:02:40,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 09:02:40,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 09:02:40,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 09:02:40,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 09:02:40,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:02:37" (1/3) ... [2023-11-23 09:02:40,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6248d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:02:40, skipping insertion in model container [2023-11-23 09:02:40,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:02:39" (2/3) ... [2023-11-23 09:02:40,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6248d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:02:40, skipping insertion in model container [2023-11-23 09:02:40,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:02:40" (3/3) ... [2023-11-23 09:02:40,868 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_down_harness.i [2023-11-23 09:02:40,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 09:02:40,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 09:02:40,928 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 09:02:40,937 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;@797102ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 09:02:40,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 09:02:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 168 states have (on average 1.2738095238095237) internal successors, (214), 169 states have internal predecessors, (214), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-23 09:02:40,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 09:02:40,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:40,966 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:40,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:40,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:40,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1806196161, now seen corresponding path program 1 times [2023-11-23 09:02:40,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:40,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251819890] [2023-11-23 09:02:40,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:40,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 09:02:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 09:02:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:02:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 09:02:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 09:02:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 09:02:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:02:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 09:02:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 09:02:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 09:02:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 09:02:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:02:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 09:02:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 09:02:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 09:02:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 09:02:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 09:02:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 09:02:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 09:02:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-11-23 09:02:41,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:41,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251819890] [2023-11-23 09:02:41,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251819890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:41,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:41,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:02:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786491292] [2023-11-23 09:02:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:41,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:02:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:02:41,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:41,724 INFO L87 Difference]: Start difference. First operand has 297 states, 168 states have (on average 1.2738095238095237) internal successors, (214), 169 states have internal predecessors, (214), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 09:02:42,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:42,757 INFO L93 Difference]: Finished difference Result 670 states and 1103 transitions. [2023-11-23 09:02:42,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 09:02:42,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 142 [2023-11-23 09:02:42,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:42,775 INFO L225 Difference]: With dead ends: 670 [2023-11-23 09:02:42,776 INFO L226 Difference]: Without dead ends: 391 [2023-11-23 09:02:42,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:42,788 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 113 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:42,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 479 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:02:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-11-23 09:02:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 295. [2023-11-23 09:02:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 167 states have (on average 1.2335329341317365) internal successors, (206), 168 states have internal predecessors, (206), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-23 09:02:42,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 413 transitions. [2023-11-23 09:02:42,852 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 413 transitions. Word has length 142 [2023-11-23 09:02:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:42,852 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 413 transitions. [2023-11-23 09:02:42,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 09:02:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 413 transitions. [2023-11-23 09:02:42,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-23 09:02:42,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:42,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:42,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 09:02:42,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:42,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1721925491, now seen corresponding path program 1 times [2023-11-23 09:02:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059183406] [2023-11-23 09:02:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 09:02:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 09:02:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:02:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 09:02:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 09:02:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 09:02:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:02:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 09:02:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 09:02:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 09:02:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 09:02:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 09:02:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 09:02:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 09:02:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 09:02:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 09:02:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 09:02:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 09:02:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 09:02:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,366 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-23 09:02:43,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:43,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059183406] [2023-11-23 09:02:43,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059183406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:02:43,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397927716] [2023-11-23 09:02:43,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:43,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:43,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:43,369 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 09:02:43,385 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 09:02:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:43,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 2301 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 09:02:43,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 09:02:43,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397927716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:43,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:02:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 09:02:43,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049547066] [2023-11-23 09:02:43,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:43,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 09:02:43,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 09:02:43,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:43,866 INFO L87 Difference]: Start difference. First operand 295 states and 413 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 09:02:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:44,045 INFO L93 Difference]: Finished difference Result 549 states and 773 transitions. [2023-11-23 09:02:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:02:44,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 142 [2023-11-23 09:02:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:44,048 INFO L225 Difference]: With dead ends: 549 [2023-11-23 09:02:44,048 INFO L226 Difference]: Without dead ends: 297 [2023-11-23 09:02:44,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 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 09:02:44,050 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 46 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:44,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1394 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 09:02:44,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-23 09:02:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2023-11-23 09:02:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 170 states have internal predecessors, (207), 104 states have call successors, (104), 23 states have call predecessors, (104), 24 states have return successors, (107), 103 states have call predecessors, (107), 103 states have call successors, (107) [2023-11-23 09:02:44,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 418 transitions. [2023-11-23 09:02:44,068 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 418 transitions. Word has length 142 [2023-11-23 09:02:44,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:44,068 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 418 transitions. [2023-11-23 09:02:44,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-23 09:02:44,069 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 418 transitions. [2023-11-23 09:02:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-23 09:02:44,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:44,070 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:44,088 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 09:02:44,288 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 09:02:44,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:44,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1337467119, now seen corresponding path program 1 times [2023-11-23 09:02:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:44,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180406696] [2023-11-23 09:02:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 09:02:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 09:02:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 09:02:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 09:02:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 09:02:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 09:02:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 09:02:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 09:02:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 09:02:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 09:02:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 09:02:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 09:02:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 09:02:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 09:02:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 09:02:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 09:02:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 09:02:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 09:02:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 09:02:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 09:02:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 09:02:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 09:02:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 09:02:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 09:02:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:44,782 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 09:02:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:44,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180406696] [2023-11-23 09:02:44,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180406696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 09:02:44,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559046119] [2023-11-23 09:02:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:44,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:44,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:44,784 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 09:02:44,811 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 09:02:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:45,161 INFO L262 TraceCheckSpWp]: Trace formula consists of 2351 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:45,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 09:02:45,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559046119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:45,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 09:02:45,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-23 09:02:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913026936] [2023-11-23 09:02:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:45,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:02:45,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:02:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:02:45,268 INFO L87 Difference]: Start difference. First operand 297 states and 418 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:02:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:45,660 INFO L93 Difference]: Finished difference Result 572 states and 820 transitions. [2023-11-23 09:02:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:02:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 150 [2023-11-23 09:02:45,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:45,665 INFO L225 Difference]: With dead ends: 572 [2023-11-23 09:02:45,665 INFO L226 Difference]: Without dead ends: 318 [2023-11-23 09:02:45,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-23 09:02:45,669 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 82 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:45,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2070 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-23 09:02:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 316. [2023-11-23 09:02:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2023-11-23 09:02:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2023-11-23 09:02:45,702 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 150 [2023-11-23 09:02:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:45,703 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2023-11-23 09:02:45,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-11-23 09:02:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2023-11-23 09:02:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 09:02:45,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:45,708 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:45,726 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 09:02:45,918 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 09:02:45,918 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:45,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1091830250, now seen corresponding path program 1 times [2023-11-23 09:02:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:45,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704538518] [2023-11-23 09:02:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:45,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:45,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638430099] [2023-11-23 09:02:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:45,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:45,986 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 09:02:45,990 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 09:02:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:46,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 2490 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:46,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 09:02:46,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:46,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704538518] [2023-11-23 09:02:46,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638430099] [2023-11-23 09:02:46,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638430099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:46,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:46,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:46,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892109888] [2023-11-23 09:02:46,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:46,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:46,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:46,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:46,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:46,473 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-23 09:02:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:46,783 INFO L93 Difference]: Finished difference Result 595 states and 864 transitions. [2023-11-23 09:02:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:02:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 163 [2023-11-23 09:02:46,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:46,788 INFO L225 Difference]: With dead ends: 595 [2023-11-23 09:02:46,788 INFO L226 Difference]: Without dead ends: 322 [2023-11-23 09:02:46,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 158 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 09:02:46,790 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 65 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:46,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1710 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-23 09:02:46,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 316. [2023-11-23 09:02:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2023-11-23 09:02:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2023-11-23 09:02:46,810 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 163 [2023-11-23 09:02:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:46,812 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2023-11-23 09:02:46,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-11-23 09:02:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2023-11-23 09:02:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 09:02:46,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:46,814 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:46,844 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 09:02:47,029 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 09:02:47,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:47,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:47,029 INFO L85 PathProgramCache]: Analyzing trace with hash -948390717, now seen corresponding path program 1 times [2023-11-23 09:02:47,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:47,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806870431] [2023-11-23 09:02:47,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:47,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:47,110 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:47,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014945554] [2023-11-23 09:02:47,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:47,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:47,111 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 09:02:47,113 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 09:02:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:47,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:47,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 09:02:47,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:47,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:47,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806870431] [2023-11-23 09:02:47,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:47,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014945554] [2023-11-23 09:02:47,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014945554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:47,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:47,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:02:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51618300] [2023-11-23 09:02:47,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:47,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:02:47,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:47,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:02:47,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:47,579 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:02:48,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:48,047 INFO L93 Difference]: Finished difference Result 605 states and 877 transitions. [2023-11-23 09:02:48,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:48,048 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 179 [2023-11-23 09:02:48,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:48,050 INFO L225 Difference]: With dead ends: 605 [2023-11-23 09:02:48,050 INFO L226 Difference]: Without dead ends: 332 [2023-11-23 09:02:48,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:48,052 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 125 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:48,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 2287 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:02:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-11-23 09:02:48,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 316. [2023-11-23 09:02:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 184 states have (on average 1.2445652173913044) internal successors, (229), 186 states have internal predecessors, (229), 106 states have call successors, (106), 23 states have call predecessors, (106), 25 states have return successors, (120), 106 states have call predecessors, (120), 105 states have call successors, (120) [2023-11-23 09:02:48,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 455 transitions. [2023-11-23 09:02:48,064 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 455 transitions. Word has length 179 [2023-11-23 09:02:48,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:48,065 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 455 transitions. [2023-11-23 09:02:48,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-11-23 09:02:48,065 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 455 transitions. [2023-11-23 09:02:48,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-23 09:02:48,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:48,066 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:48,082 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 09:02:48,282 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 09:02:48,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:48,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1381186684, now seen corresponding path program 2 times [2023-11-23 09:02:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:48,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850487688] [2023-11-23 09:02:48,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:48,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:48,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:48,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576661247] [2023-11-23 09:02:48,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:02:48,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:48,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:48,336 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 09:02:48,360 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 09:02:48,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:02:48,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:02:48,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 09:02:48,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2023-11-23 09:02:48,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:48,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:48,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850487688] [2023-11-23 09:02:48,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:48,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576661247] [2023-11-23 09:02:48,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576661247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:48,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:48,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 09:02:48,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730570032] [2023-11-23 09:02:48,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:48,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 09:02:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:48,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 09:02:48,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 09:02:48,905 INFO L87 Difference]: Start difference. First operand 316 states and 455 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:49,217 INFO L93 Difference]: Finished difference Result 561 states and 817 transitions. [2023-11-23 09:02:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 09:02:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 192 [2023-11-23 09:02:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:49,219 INFO L225 Difference]: With dead ends: 561 [2023-11-23 09:02:49,220 INFO L226 Difference]: Without dead ends: 318 [2023-11-23 09:02:49,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 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 09:02:49,221 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 83 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:49,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 2048 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:49,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-23 09:02:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2023-11-23 09:02:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 185 states have (on average 1.2432432432432432) internal successors, (230), 188 states have internal predecessors, (230), 106 states have call successors, (106), 23 states have call predecessors, (106), 26 states have return successors, (122), 106 states have call predecessors, (122), 105 states have call successors, (122) [2023-11-23 09:02:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 458 transitions. [2023-11-23 09:02:49,233 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 458 transitions. Word has length 192 [2023-11-23 09:02:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:49,233 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 458 transitions. [2023-11-23 09:02:49,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 09:02:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 458 transitions. [2023-11-23 09:02:49,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-23 09:02:49,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:49,235 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:49,252 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 09:02:49,448 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 09:02:49,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:49,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash 331843558, now seen corresponding path program 1 times [2023-11-23 09:02:49,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:49,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455183936] [2023-11-23 09:02:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:49,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:49,503 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:49,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453611764] [2023-11-23 09:02:49,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:49,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:49,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:49,504 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 09:02:49,519 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 09:02:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:49,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:49,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-11-23 09:02:50,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:50,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455183936] [2023-11-23 09:02:50,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453611764] [2023-11-23 09:02:50,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453611764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:50,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:50,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:02:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299050534] [2023-11-23 09:02:50,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:50,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:02:50,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:02:50,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:50,045 INFO L87 Difference]: Start difference. First operand 318 states and 458 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:50,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:50,598 INFO L93 Difference]: Finished difference Result 579 states and 843 transitions. [2023-11-23 09:02:50,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:50,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 200 [2023-11-23 09:02:50,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:50,600 INFO L225 Difference]: With dead ends: 579 [2023-11-23 09:02:50,601 INFO L226 Difference]: Without dead ends: 334 [2023-11-23 09:02:50,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:50,602 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 135 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:50,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 2610 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:02:50,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-11-23 09:02:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 332. [2023-11-23 09:02:50,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 198 states have (on average 1.2525252525252526) internal successors, (248), 200 states have internal predecessors, (248), 107 states have call successors, (107), 23 states have call predecessors, (107), 26 states have return successors, (123), 108 states have call predecessors, (123), 106 states have call successors, (123) [2023-11-23 09:02:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 478 transitions. [2023-11-23 09:02:50,641 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 478 transitions. Word has length 200 [2023-11-23 09:02:50,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:50,641 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 478 transitions. [2023-11-23 09:02:50,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 478 transitions. [2023-11-23 09:02:50,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-11-23 09:02:50,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:50,643 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:50,660 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 09:02:50,856 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 09:02:50,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:50,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1942358327, now seen corresponding path program 2 times [2023-11-23 09:02:50,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:50,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851939297] [2023-11-23 09:02:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:50,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:50,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:50,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45928067] [2023-11-23 09:02:50,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:02:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:50,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:50,910 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 09:02:50,925 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 09:02:51,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:02:51,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:02:51,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 2890 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:51,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2023-11-23 09:02:51,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:51,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851939297] [2023-11-23 09:02:51,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45928067] [2023-11-23 09:02:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45928067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:51,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:51,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 09:02:51,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218462614] [2023-11-23 09:02:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:51,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 09:02:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:51,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 09:02:51,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 09:02:51,475 INFO L87 Difference]: Start difference. First operand 332 states and 478 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:51,851 INFO L93 Difference]: Finished difference Result 597 states and 868 transitions. [2023-11-23 09:02:51,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:51,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 213 [2023-11-23 09:02:51,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:51,854 INFO L225 Difference]: With dead ends: 597 [2023-11-23 09:02:51,854 INFO L226 Difference]: Without dead ends: 338 [2023-11-23 09:02:51,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:51,856 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 102 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 2345 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 09:02:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-23 09:02:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 332. [2023-11-23 09:02:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 198 states have (on average 1.2525252525252526) internal successors, (248), 200 states have internal predecessors, (248), 107 states have call successors, (107), 23 states have call predecessors, (107), 26 states have return successors, (123), 108 states have call predecessors, (123), 106 states have call successors, (123) [2023-11-23 09:02:51,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 478 transitions. [2023-11-23 09:02:51,867 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 478 transitions. Word has length 213 [2023-11-23 09:02:51,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:51,868 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 478 transitions. [2023-11-23 09:02:51,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-11-23 09:02:51,868 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 478 transitions. [2023-11-23 09:02:51,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-23 09:02:51,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:51,870 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:51,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 09:02:52,085 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 09:02:52,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:52,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:52,086 INFO L85 PathProgramCache]: Analyzing trace with hash -108517637, now seen corresponding path program 1 times [2023-11-23 09:02:52,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:52,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830516727] [2023-11-23 09:02:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:52,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:52,154 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:52,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351433113] [2023-11-23 09:02:52,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:52,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:52,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:52,155 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 09:02:52,159 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 09:02:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:52,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 3101 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:52,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-23 09:02:52,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:52,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:52,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830516727] [2023-11-23 09:02:52,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:52,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351433113] [2023-11-23 09:02:52,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351433113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:52,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:52,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 09:02:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461757989] [2023-11-23 09:02:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:52,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 09:02:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 09:02:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:52,810 INFO L87 Difference]: Start difference. First operand 332 states and 478 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 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 09:02:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:53,283 INFO L93 Difference]: Finished difference Result 597 states and 869 transitions. [2023-11-23 09:02:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 09:02:53,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 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 242 [2023-11-23 09:02:53,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:53,288 INFO L225 Difference]: With dead ends: 597 [2023-11-23 09:02:53,288 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:02:53,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 09:02:53,291 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 79 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:53,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2683 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 09:02:53,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:02:53,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-11-23 09:02:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 203 states have (on average 1.251231527093596) internal successors, (254), 205 states have internal predecessors, (254), 112 states have call successors, (112), 24 states have call predecessors, (112), 27 states have return successors, (128), 113 states have call predecessors, (128), 111 states have call successors, (128) [2023-11-23 09:02:53,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 494 transitions. [2023-11-23 09:02:53,302 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 494 transitions. Word has length 242 [2023-11-23 09:02:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:53,303 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 494 transitions. [2023-11-23 09:02:53,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 7 states have internal predecessors, (75), 5 states have call successors, (31), 4 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 09:02:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 494 transitions. [2023-11-23 09:02:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-23 09:02:53,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:53,305 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:02:53,324 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 09:02:53,512 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 09:02:53,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:53,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -489479524, now seen corresponding path program 2 times [2023-11-23 09:02:53,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:53,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776750592] [2023-11-23 09:02:53,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:53,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:53,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:53,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [338971526] [2023-11-23 09:02:53,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 09:02:53,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:53,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:53,580 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 09:02:53,606 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 09:02:54,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 09:02:54,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 09:02:54,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 3240 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-23 09:02:54,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:54,488 INFO L349 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2023-11-23 09:02:54,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 39 [2023-11-23 09:02:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-23 09:02:54,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:54,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776750592] [2023-11-23 09:02:54,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338971526] [2023-11-23 09:02:54,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338971526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:54,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:02:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110325859] [2023-11-23 09:02:54,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:54,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:02:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:54,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:02:54,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:54,860 INFO L87 Difference]: Start difference. First operand 343 states and 494 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:02:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:55,478 INFO L93 Difference]: Finished difference Result 613 states and 890 transitions. [2023-11-23 09:02:55,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:02:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 255 [2023-11-23 09:02:55,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:55,481 INFO L225 Difference]: With dead ends: 613 [2023-11-23 09:02:55,481 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:02:55,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 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 09:02:55,482 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 162 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:55,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2878 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:02:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:02:55,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 327. [2023-11-23 09:02:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 189 states have (on average 1.2433862433862435) internal successors, (235), 191 states have internal predecessors, (235), 111 states have call successors, (111), 24 states have call predecessors, (111), 26 states have return successors, (123), 111 states have call predecessors, (123), 110 states have call successors, (123) [2023-11-23 09:02:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 469 transitions. [2023-11-23 09:02:55,496 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 469 transitions. Word has length 255 [2023-11-23 09:02:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:55,496 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 469 transitions. [2023-11-23 09:02:55,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 6 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-23 09:02:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 469 transitions. [2023-11-23 09:02:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:02:55,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:55,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:55,519 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 09:02:55,716 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 09:02:55,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:55,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash 359240929, now seen corresponding path program 1 times [2023-11-23 09:02:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:55,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816500277] [2023-11-23 09:02:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:55,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:55,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585956696] [2023-11-23 09:02:55,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:55,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:55,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:55,779 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 09:02:55,812 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 09:02:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:56,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 09:02:56,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-23 09:02:56,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:56,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:56,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816500277] [2023-11-23 09:02:56,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:56,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585956696] [2023-11-23 09:02:56,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585956696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:56,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:56,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 09:02:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864746997] [2023-11-23 09:02:56,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:56,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 09:02:56,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 09:02:56,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 09:02:56,468 INFO L87 Difference]: Start difference. First operand 327 states and 469 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:57,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:57,050 INFO L93 Difference]: Finished difference Result 643 states and 932 transitions. [2023-11-23 09:02:57,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 09:02:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2023-11-23 09:02:57,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:57,053 INFO L225 Difference]: With dead ends: 643 [2023-11-23 09:02:57,053 INFO L226 Difference]: Without dead ends: 359 [2023-11-23 09:02:57,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 09:02:57,054 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 21 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:57,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1769 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 09:02:57,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-23 09:02:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 335. [2023-11-23 09:02:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 197 states have (on average 1.2436548223350254) internal successors, (245), 199 states have internal predecessors, (245), 111 states have call successors, (111), 24 states have call predecessors, (111), 26 states have return successors, (123), 111 states have call predecessors, (123), 110 states have call successors, (123) [2023-11-23 09:02:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 479 transitions. [2023-11-23 09:02:57,068 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 479 transitions. Word has length 268 [2023-11-23 09:02:57,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:57,068 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 479 transitions. [2023-11-23 09:02:57,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 479 transitions. [2023-11-23 09:02:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:02:57,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:57,070 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:57,093 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 09:02:57,276 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 09:02:57,277 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:57,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:57,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1653703901, now seen corresponding path program 1 times [2023-11-23 09:02:57,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:57,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555056952] [2023-11-23 09:02:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:57,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990886938] [2023-11-23 09:02:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:57,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:57,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:57,364 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 09:02:57,385 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 09:02:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:57,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 3373 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:02:57,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 09:02:57,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:57,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555056952] [2023-11-23 09:02:57,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990886938] [2023-11-23 09:02:57,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990886938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:57,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:57,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:02:57,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812923475] [2023-11-23 09:02:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:57,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:02:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:02:57,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:02:57,998 INFO L87 Difference]: Start difference. First operand 335 states and 479 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:58,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:02:58,191 INFO L93 Difference]: Finished difference Result 635 states and 918 transitions. [2023-11-23 09:02:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:02:58,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 268 [2023-11-23 09:02:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:02:58,194 INFO L225 Difference]: With dead ends: 635 [2023-11-23 09:02:58,194 INFO L226 Difference]: Without dead ends: 343 [2023-11-23 09:02:58,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 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 09:02:58,197 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 3 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 09:02:58,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1148 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 09:02:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-23 09:02:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 339. [2023-11-23 09:02:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 201 states have (on average 1.2388059701492538) internal successors, (249), 203 states have internal predecessors, (249), 111 states have call successors, (111), 24 states have call predecessors, (111), 26 states have return successors, (123), 111 states have call predecessors, (123), 110 states have call successors, (123) [2023-11-23 09:02:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 483 transitions. [2023-11-23 09:02:58,213 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 483 transitions. Word has length 268 [2023-11-23 09:02:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:02:58,213 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 483 transitions. [2023-11-23 09:02:58,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-23 09:02:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 483 transitions. [2023-11-23 09:02:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:02:58,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:02:58,215 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:02:58,236 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 09:02:58,420 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 09:02:58,420 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:02:58,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:02:58,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2018688039, now seen corresponding path program 1 times [2023-11-23 09:02:58,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:02:58,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521046177] [2023-11-23 09:02:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:02:58,485 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:02:58,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [46626986] [2023-11-23 09:02:58,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:02:58,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:02:58,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:02:58,488 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 09:02:58,528 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 09:02:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:02:59,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 3363 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 09:02:59,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:02:59,289 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 09:02:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 09:02:59,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:02:59,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:02:59,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521046177] [2023-11-23 09:02:59,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:02:59,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46626986] [2023-11-23 09:02:59,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46626986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:02:59,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:02:59,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:02:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714638419] [2023-11-23 09:02:59,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:02:59,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:02:59,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:02:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:02:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:02:59,314 INFO L87 Difference]: Start difference. First operand 339 states and 483 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:03:00,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:00,306 INFO L93 Difference]: Finished difference Result 680 states and 989 transitions. [2023-11-23 09:03:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 09:03:00,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) Word has length 268 [2023-11-23 09:03:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:00,309 INFO L225 Difference]: With dead ends: 680 [2023-11-23 09:03:00,309 INFO L226 Difference]: Without dead ends: 384 [2023-11-23 09:03:00,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-23 09:03:00,310 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 88 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 3079 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:00,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 3079 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:03:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-23 09:03:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 350. [2023-11-23 09:03:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 211 states have (on average 1.2369668246445498) internal successors, (261), 212 states have internal predecessors, (261), 111 states have call successors, (111), 24 states have call predecessors, (111), 27 states have return successors, (136), 113 states have call predecessors, (136), 110 states have call successors, (136) [2023-11-23 09:03:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 508 transitions. [2023-11-23 09:03:00,325 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 508 transitions. Word has length 268 [2023-11-23 09:03:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:00,325 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 508 transitions. [2023-11-23 09:03:00,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 5 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33) [2023-11-23 09:03:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 508 transitions. [2023-11-23 09:03:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:03:00,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:00,327 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:00,348 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 09:03:00,546 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 09:03:00,546 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:00,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1202358819, now seen corresponding path program 1 times [2023-11-23 09:03:00,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:00,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698843174] [2023-11-23 09:03:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:00,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:00,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:00,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706031112] [2023-11-23 09:03:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:00,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:00,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:00,600 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 09:03:00,624 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 09:03:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:01,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 3369 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-23 09:03:01,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-11-23 09:03:01,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:01,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:01,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698843174] [2023-11-23 09:03:01,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:01,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706031112] [2023-11-23 09:03:01,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706031112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:01,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:01,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 09:03:01,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356239561] [2023-11-23 09:03:01,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:01,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 09:03:01,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 09:03:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 09:03:01,437 INFO L87 Difference]: Start difference. First operand 350 states and 508 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-23 09:03:02,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:03:02,399 INFO L93 Difference]: Finished difference Result 620 states and 909 transitions. [2023-11-23 09:03:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 09:03:02,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 268 [2023-11-23 09:03:02,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:03:02,402 INFO L225 Difference]: With dead ends: 620 [2023-11-23 09:03:02,402 INFO L226 Difference]: Without dead ends: 350 [2023-11-23 09:03:02,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-23 09:03:02,404 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 46 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:03:02,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2818 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:03:02,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-23 09:03:02,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2023-11-23 09:03:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 211 states have (on average 1.2322274881516588) internal successors, (260), 212 states have internal predecessors, (260), 111 states have call successors, (111), 24 states have call predecessors, (111), 27 states have return successors, (136), 113 states have call predecessors, (136), 110 states have call successors, (136) [2023-11-23 09:03:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 507 transitions. [2023-11-23 09:03:02,417 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 507 transitions. Word has length 268 [2023-11-23 09:03:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:03:02,417 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 507 transitions. [2023-11-23 09:03:02,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 6 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-23 09:03:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 507 transitions. [2023-11-23 09:03:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:03:02,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:03:02,419 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:02,447 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 09:03:02,632 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 09:03:02,632 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:03:02,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:03:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -758458145, now seen corresponding path program 1 times [2023-11-23 09:03:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:03:02,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461028123] [2023-11-23 09:03:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:03:02,691 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:03:02,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925149026] [2023-11-23 09:03:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:03:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:03:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:03:02,693 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 09:03:02,720 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 09:03:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:03:03,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-23 09:03:03,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:03:03,462 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 61 treesize of output 37 [2023-11-23 09:03:03,657 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 09:03:03,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:03:03,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-23 09:03:03,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:03:03,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-23 09:03:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-23 09:03:04,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:03:04,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:03:04,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461028123] [2023-11-23 09:03:04,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:03:04,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925149026] [2023-11-23 09:03:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925149026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:03:04,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:03:04,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-11-23 09:03:04,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194060032] [2023-11-23 09:03:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:03:04,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 09:03:04,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:03:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 09:03:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=282, Unknown=19, NotChecked=34, Total=380 [2023-11-23 09:03:04,002 INFO L87 Difference]: Start difference. First operand 350 states and 507 transitions. Second operand has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 17 states have internal predecessors, (95), 8 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 09:03:07,728 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 09:03:13,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:15,604 WARN L539 Checker$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 09:03:19,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:21,159 WARN L539 Checker$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 09:03:29,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:03:32,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:03:34,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:03:36,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 09:03:40,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:42,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:49,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:03:53,744 WARN L539 Checker$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 09:04:00,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:02,918 WARN L539 Checker$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 09:04:05,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 09:04:07,238 WARN L539 Checker$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 09:04:09,361 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 09:04:18,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:18,878 INFO L93 Difference]: Finished difference Result 811 states and 1306 transitions. [2023-11-23 09:04:18,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-23 09:04:18,879 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 17 states have internal predecessors, (95), 8 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32) Word has length 268 [2023-11-23 09:04:18,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:18,883 INFO L225 Difference]: With dead ends: 811 [2023-11-23 09:04:18,883 INFO L226 Difference]: Without dead ends: 544 [2023-11-23 09:04:18,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=179, Invalid=1208, Unknown=23, NotChecked=72, Total=1482 [2023-11-23 09:04:18,885 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 295 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 256 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 785 IncrementalHoareTripleChecker+Unchecked, 71.8s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:18,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 3217 Invalid, 5360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [256 Valid, 4272 Invalid, 47 Unknown, 785 Unchecked, 71.8s Time] [2023-11-23 09:04:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-23 09:04:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 353. [2023-11-23 09:04:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 213 states have (on average 1.2300469483568075) internal successors, (262), 215 states have internal predecessors, (262), 111 states have call successors, (111), 24 states have call predecessors, (111), 28 states have return successors, (147), 113 states have call predecessors, (147), 110 states have call successors, (147) [2023-11-23 09:04:18,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 520 transitions. [2023-11-23 09:04:18,904 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 520 transitions. Word has length 268 [2023-11-23 09:04:18,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:18,904 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 520 transitions. [2023-11-23 09:04:18,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.277777777777778) internal successors, (95), 17 states have internal predecessors, (95), 8 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (32), 7 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-23 09:04:18,904 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 520 transitions. [2023-11-23 09:04:18,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 09:04:18,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:18,906 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 09:04:18,934 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 09:04:19,120 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 09:04:19,120 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:19,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1715925093, now seen corresponding path program 1 times [2023-11-23 09:04:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071007371] [2023-11-23 09:04:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:19,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:19,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:19,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399571080] [2023-11-23 09:04:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:19,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:19,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:19,177 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 09:04:19,178 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 09:04:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:19,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 3356 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 09:04:19,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:19,917 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 09:04:19,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 09:04:19,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 09:04:19,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071007371] [2023-11-23 09:04:19,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 09:04:19,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399571080] [2023-11-23 09:04:19,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399571080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 09:04:19,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 09:04:19,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 09:04:19,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848766942] [2023-11-23 09:04:19,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 09:04:19,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 09:04:19,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 09:04:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 09:04:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 09:04:19,919 INFO L87 Difference]: Start difference. First operand 353 states and 520 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:04:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 09:04:20,947 INFO L93 Difference]: Finished difference Result 663 states and 1010 transitions. [2023-11-23 09:04:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 09:04:20,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 268 [2023-11-23 09:04:20,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 09:04:20,951 INFO L225 Difference]: With dead ends: 663 [2023-11-23 09:04:20,951 INFO L226 Difference]: Without dead ends: 353 [2023-11-23 09:04:20,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 09:04:20,953 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 7 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 09:04:20,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1156 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 09:04:20,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-23 09:04:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-23 09:04:20,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 213 states have (on average 1.2253521126760563) internal successors, (261), 215 states have internal predecessors, (261), 111 states have call successors, (111), 24 states have call predecessors, (111), 28 states have return successors, (147), 113 states have call predecessors, (147), 110 states have call successors, (147) [2023-11-23 09:04:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 519 transitions. [2023-11-23 09:04:20,966 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 519 transitions. Word has length 268 [2023-11-23 09:04:20,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 09:04:20,966 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 519 transitions. [2023-11-23 09:04:20,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-23 09:04:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 519 transitions. [2023-11-23 09:04:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-23 09:04:20,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 09:04:20,968 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 09:04:20,986 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 09:04:21,180 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 09:04:21,180 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 09:04:21,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 09:04:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash 411998295, now seen corresponding path program 1 times [2023-11-23 09:04:21,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 09:04:21,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679264139] [2023-11-23 09:04:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:21,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 09:04:21,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 09:04:21,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130860750] [2023-11-23 09:04:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 09:04:21,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 09:04:21,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 09:04:21,261 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 09:04:21,288 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 09:04:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 09:04:21,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 3394 conjuncts, 288 conjunts are in the unsatisfiable core [2023-11-23 09:04:21,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 09:04:22,016 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 [2023-11-23 09:04:29,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:29,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 09:04:29,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:29,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 09:04:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:31,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:31,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 09:04:31,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:31,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 09:04:31,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:31,736 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-23 09:04:31,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2023-11-23 09:04:31,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 09:04:42,487 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base|) 0 (select (select |c_#memory_$Pointer$.base| |aws_array_list_is_valid_~#required_size~0.base|) 0)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base|) 0 (select (select |c_#memory_$Pointer$.offset| |aws_array_list_is_valid_~#required_size~0.base|) 0)))))) is different from true [2023-11-23 09:04:43,530 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 61 treesize of output 37 [2023-11-23 09:04:44,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:04:44,913 INFO L349 Elim1Store]: treesize reduction 77, result has 31.9 percent of original size [2023-11-23 09:04:44,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 94 [2023-11-23 09:04:45,033 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 09:04:45,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-23 09:04:45,799 INFO L349 Elim1Store]: treesize reduction 77, result has 31.9 percent of original size [2023-11-23 09:04:45,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 94 [2023-11-23 09:04:45,879 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 12 treesize of output 11 [2023-11-23 09:04:46,030 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 12 treesize of output 11 [2023-11-23 09:04:46,087 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 09:04:46,091 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 12 treesize of output 1 [2023-11-23 09:04:46,249 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 09:04:46,250 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 12 treesize of output 1 [2023-11-23 09:04:46,347 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 09:04:46,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2023-11-23 09:04:46,611 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 09:04:46,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2023-11-23 09:04:46,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2023-11-23 09:04:46,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:04:47,468 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-11-23 09:04:47,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 57 [2023-11-23 09:04:47,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:04:47,657 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-23 09:05:10,094 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 09:05:10,229 WARN L876 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| 0) (= |c_#memory_$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 09:05:15,319 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| Int)) (and (<= |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| 0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| 0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| Int)) (and (= (let ((.cse0 (store |c_old(#memory_$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$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))))) (store .cse0 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| (store (select .cse0 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| (select (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|)))) |c_#memory_$Pointer$.base|) (= (let ((.cse1 (store |c_old(#memory_$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$.offset| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))))) (store .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| (store (select .cse1 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| (select (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|)))) |c_#memory_$Pointer$.offset|) (not (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|)))))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| 0) (= |c_#memory_$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$.offset|))) (exists ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| Int)) (and (<= |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| 0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| Int)) (and (<= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| 0) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| Int)) (and (= (let ((.cse2 (store |c_old(#memory_$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$.base| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))))) (store .cse2 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| (store (select .cse2 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| (select (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|)))) |c_#memory_$Pointer$.base|) (= (let ((.cse3 (store |c_old(#memory_$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$.offset| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset|))))) (store .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7| (store (select .cse3 |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7| (select (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_7|) |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|)))) |c_#memory_$Pointer$.offset|))) (not (= |aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.offset_7|))))))) is different from true [2023-11-23 09:05:21,063 INFO L349 Elim1Store]: treesize reduction 208, result has 17.5 percent of original size [2023-11-23 09:05:21,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 221 treesize of output 268 [2023-11-23 09:05:21,374 INFO L224 Elim1Store]: Index analysis took 281 ms [2023-11-23 09:05:22,532 INFO L349 Elim1Store]: treesize reduction 208, result has 17.5 percent of original size [2023-11-23 09:05:22,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 137 treesize of output 184 [2023-11-23 09:05:23,581 INFO L224 Elim1Store]: Index analysis took 775 ms [2023-11-23 09:05:24,957 INFO L349 Elim1Store]: treesize reduction 234, result has 19.9 percent of original size [2023-11-23 09:05:24,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 71 treesize of output 109 [2023-11-23 09:05:25,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:05:25,303 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:05:25,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 09:05:25,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:05:26,350 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:05:26,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 48 [2023-11-23 09:05:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 09:05:26,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:05:27,741 INFO L224 Elim1Store]: Index analysis took 775 ms [2023-11-23 09:05:29,174 INFO L349 Elim1Store]: treesize reduction 234, result has 19.9 percent of original size [2023-11-23 09:05:29,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 71 treesize of output 109 [2023-11-23 09:05:29,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:05:29,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:05:29,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 09:05:29,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:05:30,256 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:05:30,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 60 [2023-11-23 09:05:30,650 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:05:30,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:05:30,803 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:05:30,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:14,294 INFO L224 Elim1Store]: Index analysis took 181 ms [2023-11-23 09:06:15,132 INFO L349 Elim1Store]: treesize reduction 84, result has 32.3 percent of original size [2023-11-23 09:06:15,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 48 treesize of output 63 [2023-11-23 09:06:15,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:06:15,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:06:15,542 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:15,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2023-11-23 09:06:15,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:15,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 86 [2023-11-23 09:06:16,990 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:16,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 69 [2023-11-23 09:06:17,477 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:17,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:29,818 INFO L224 Elim1Store]: Index analysis took 187 ms [2023-11-23 09:06:30,975 INFO L349 Elim1Store]: treesize reduction 370, result has 15.3 percent of original size [2023-11-23 09:06:30,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 14 case distinctions, treesize of input 105 treesize of output 118 [2023-11-23 09:06:31,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:06:32,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 [2023-11-23 09:06:32,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:32,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 09:06:32,784 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:32,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:32,930 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:32,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:33,093 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:33,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:33,510 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:33,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2023-11-23 09:06:33,671 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-23 09:06:33,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 18 [2023-11-23 09:06:34,085 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:34,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2023-11-23 09:06:34,671 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:34,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2023-11-23 09:06:35,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:35,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 124 [2023-11-23 09:06:38,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:38,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 124 [2023-11-23 09:06:39,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:39,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 124 [2023-11-23 09:06:40,703 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-23 09:06:40,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 18 [2023-11-23 09:06:41,732 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:41,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2023-11-23 09:06:42,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:42,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2023-11-23 09:06:42,559 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:42,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 34 [2023-11-23 09:06:42,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:42,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2023-11-23 09:06:43,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:43,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2023-11-23 09:06:43,677 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:43,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2023-11-23 09:06:43,826 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 09:06:43,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 11 [2023-11-23 09:06:45,026 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-11-23 09:06:45,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2023-11-23 09:06:45,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:45,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 53 [2023-11-23 09:06:45,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 09:06:45,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 53 Killed by 15