./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_hash_iter_done_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_hash_iter_done_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4aa4ea29feb858d0ec0c88bcc85f9e71afb408d45796415f5e65f623910fb063 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 08:37:28,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 08:37:28,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 08:37:28,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 08:37:28,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 08:37:28,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 08:37:28,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 08:37:28,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 08:37:28,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 08:37:28,203 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 08:37:28,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 08:37:28,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 08:37:28,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 08:37:28,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 08:37:28,205 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 08:37:28,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 08:37:28,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 08:37:28,206 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 08:37:28,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 08:37:28,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 08:37:28,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 08:37:28,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 08:37:28,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 08:37:28,208 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 08:37:28,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 08:37:28,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 08:37:28,220 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 08:37:28,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 08:37:28,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:37:28,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 08:37:28,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 08:37:28,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 08:37:28,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 08:37:28,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 08:37:28,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 08:37:28,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 08:37:28,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 08:37:28,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 08:37:28,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 08:37:28,223 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aa4ea29feb858d0ec0c88bcc85f9e71afb408d45796415f5e65f623910fb063 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 08:37:28,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 08:37:28,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 08:37:28,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 08:37:28,480 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 08:37:28,480 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 08:37:28,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_hash_iter_done_harness_negated.i [2023-11-23 08:37:29,678 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 08:37:30,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 08:37:30,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_hash_iter_done_harness_negated.i [2023-11-23 08:37:30,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cd0d01e/ea95a1d1ca914f77be8caf260252c893/FLAGf91ae526f [2023-11-23 08:37:30,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cd0d01e/ea95a1d1ca914f77be8caf260252c893 [2023-11-23 08:37:30,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 08:37:30,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 08:37:30,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 08:37:30,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 08:37:30,159 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 08:37:30,160 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:30" (1/1) ... [2023-11-23 08:37:30,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1684c0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:30, skipping insertion in model container [2023-11-23 08:37:30,161 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:37:30" (1/1) ... [2023-11-23 08:37:30,260 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 08:37:30,562 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_hash_iter_done_harness_negated.i[4492,4505] [2023-11-23 08:37:30,571 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_hash_iter_done_harness_negated.i[4552,4565] [2023-11-23 08:37:31,240 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,241 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,241 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,243 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,253 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,254 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,255 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,256 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,257 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,258 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,259 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,596 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:37:31,598 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:37:31,598 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:37:31,599 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:37:31,600 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:37:31,605 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:37:31,605 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:37:31,606 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:37:31,606 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:37:31,607 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:37:31,992 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:31,993 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,029 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,035 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,036 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,052 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,053 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,054 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,054 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,056 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:37:32,146 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 08:37:32,165 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_hash_iter_done_harness_negated.i[4492,4505] [2023-11-23 08:37:32,165 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_hash_iter_done_harness_negated.i[4552,4565] [2023-11-23 08:37:32,185 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,187 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,188 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,192 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,193 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,194 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,195 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,196 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,221 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:37:32,222 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:37:32,223 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:37:32,224 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:37:32,224 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:37:32,225 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:37:32,225 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:37:32,225 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:37:32,226 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:37:32,227 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:37:32,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7526-7537] [2023-11-23 08:37:32,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,332 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,333 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,344 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,345 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,345 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,345 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,346 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,346 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,346 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:37:32,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:37:32,575 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,575 WARN L675 CHandler]: The function equals_fn is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,575 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,575 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,576 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function callback is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,577 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:37:32,584 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:37:32,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32 WrapperNode [2023-11-23 08:37:32,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:37:32,586 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:37:32,586 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:37:32,586 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:37:32,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,759 INFO L138 Inliner]: procedures = 772, calls = 2455, calls flagged for inlining = 67, calls inlined = 11, statements flattened = 644 [2023-11-23 08:37:32,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:37:32,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:37:32,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:37:32,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:37:32,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:37:32,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:37:32,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:37:32,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:37:32,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (1/1) ... [2023-11-23 08:37:32,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:37:32,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:32,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 08:37:32,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 08:37:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 08:37:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 08:37:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_done [2023-11-23 08:37:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_done [2023-11-23 08:37:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 08:37:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 08:37:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:37:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:37:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2023-11-23 08:37:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2023-11-23 08:37:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:37:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:37:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:37:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:37:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:37:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 08:37:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 08:37:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 08:37:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 08:37:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:37:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 08:37:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 08:37:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2023-11-23 08:37:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:37:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2023-11-23 08:37:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2023-11-23 08:37:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:37:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:37:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_iter_is_valid [2023-11-23 08:37:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_iter_is_valid [2023-11-23 08:37:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2023-11-23 08:37:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2023-11-23 08:37:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:37:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 08:37:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 08:37:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 08:37:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 08:37:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:37:33,291 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:37:33,293 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:37:33,887 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:37:33,973 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:37:33,974 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 08:37:33,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:33 BoogieIcfgContainer [2023-11-23 08:37:33,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:37:33,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:37:33,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:37:33,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:37:33,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:37:30" (1/3) ... [2023-11-23 08:37:33,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6a57e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:33, skipping insertion in model container [2023-11-23 08:37:33,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:32" (2/3) ... [2023-11-23 08:37:33,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6a57e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:33, skipping insertion in model container [2023-11-23 08:37:33,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:33" (3/3) ... [2023-11-23 08:37:33,983 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_iter_done_harness_negated.i [2023-11-23 08:37:33,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:37:33,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 08:37:34,044 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:37:34,049 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;@7bebd4fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:37:34,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 08:37:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 86 states have internal predecessors, (111), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 08:37:34,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 08:37:34,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:37:34,065 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:37:34,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:37:34,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:37:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1372019825, now seen corresponding path program 1 times [2023-11-23 08:37:34,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:37:34,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931186202] [2023-11-23 08:37:34,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:34,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:37:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:34,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:37:34,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931186202] [2023-11-23 08:37:34,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 08:37:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700613050] [2023-11-23 08:37:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:34,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:37:34,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 08:37:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:34,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 08:37:34,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:37:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-23 08:37:35,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:37:35,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700613050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:37:35,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:37:35,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 08:37:35,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492270753] [2023-11-23 08:37:35,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:37:35,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 08:37:35,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:37:35,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 08:37:35,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 08:37:35,089 INFO L87 Difference]: Start difference. First operand has 142 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 86 states have internal predecessors, (111), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 08:37:35,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:37:35,180 INFO L93 Difference]: Finished difference Result 278 states and 406 transitions. [2023-11-23 08:37:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 08:37:35,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 131 [2023-11-23 08:37:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:37:35,188 INFO L225 Difference]: With dead ends: 278 [2023-11-23 08:37:35,188 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 08:37:35,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 08:37:35,194 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:37:35,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:37:35,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 08:37:35,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-23 08:37:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 85 states have internal predecessors, (107), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-23 08:37:35,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 186 transitions. [2023-11-23 08:37:35,236 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 186 transitions. Word has length 131 [2023-11-23 08:37:35,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:37:35,236 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 186 transitions. [2023-11-23 08:37:35,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 08:37:35,237 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 186 transitions. [2023-11-23 08:37:35,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 08:37:35,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:37:35,240 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:37:35,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 08:37:35,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 08:37:35,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:37:35,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:37:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1664901967, now seen corresponding path program 1 times [2023-11-23 08:37:35,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:37:35,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029607284] [2023-11-23 08:37:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:35,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:37:35,546 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:37:35,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557648251] [2023-11-23 08:37:35,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:35,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:35,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:35,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:37:35,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 08:37:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:35,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 08:37:35,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:37:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 113 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 08:37:36,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:37:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-23 08:37:36,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:37:36,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029607284] [2023-11-23 08:37:36,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:37:36,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557648251] [2023-11-23 08:37:36,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557648251] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:37:36,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:37:36,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-23 08:37:36,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688629889] [2023-11-23 08:37:36,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:37:36,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 08:37:36,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:37:36,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 08:37:36,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 08:37:36,187 INFO L87 Difference]: Start difference. First operand 140 states and 186 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2023-11-23 08:37:36,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:37:36,510 INFO L93 Difference]: Finished difference Result 256 states and 340 transitions. [2023-11-23 08:37:36,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 08:37:36,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) Word has length 131 [2023-11-23 08:37:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:37:36,513 INFO L225 Difference]: With dead ends: 256 [2023-11-23 08:37:36,514 INFO L226 Difference]: Without dead ends: 142 [2023-11-23 08:37:36,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-23 08:37:36,515 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 151 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:37:36,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 652 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:37:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-23 08:37:36,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-23 08:37:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 85 states have (on average 1.2705882352941176) internal successors, (108), 87 states have internal predecessors, (108), 40 states have call successors, (40), 15 states have call predecessors, (40), 16 states have return successors, (41), 39 states have call predecessors, (41), 39 states have call successors, (41) [2023-11-23 08:37:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 189 transitions. [2023-11-23 08:37:36,528 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 189 transitions. Word has length 131 [2023-11-23 08:37:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:37:36,529 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 189 transitions. [2023-11-23 08:37:36,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 6 states have call successors, (44), 3 states have call predecessors, (44), 4 states have return successors, (42), 6 states have call predecessors, (42), 6 states have call successors, (42) [2023-11-23 08:37:36,530 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 189 transitions. [2023-11-23 08:37:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 08:37:36,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:37:36,532 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-23 08:37:36,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 08:37:36,743 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,SelfDestructingSolverStorable1 [2023-11-23 08:37:36,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:37:36,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:37:36,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1111473991, now seen corresponding path program 1 times [2023-11-23 08:37:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:37:36,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173478722] [2023-11-23 08:37:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:36,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:37:36,813 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:37:36,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49464902] [2023-11-23 08:37:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:36,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:36,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:36,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:37:36,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 08:37:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:37,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:37:37,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:37:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 67 proven. 73 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-23 08:37:37,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:37:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-23 08:37:37,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:37:37,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173478722] [2023-11-23 08:37:37,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:37:37,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49464902] [2023-11-23 08:37:37,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49464902] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 08:37:37,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:37:37,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2023-11-23 08:37:37,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353757689] [2023-11-23 08:37:37,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:37:37,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 08:37:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:37:37,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 08:37:37,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-23 08:37:37,608 INFO L87 Difference]: Start difference. First operand 142 states and 189 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 08:37:38,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:37:38,080 INFO L93 Difference]: Finished difference Result 216 states and 288 transitions. [2023-11-23 08:37:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:37:38,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 132 [2023-11-23 08:37:38,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:37:38,083 INFO L225 Difference]: With dead ends: 216 [2023-11-23 08:37:38,083 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 08:37:38,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-11-23 08:37:38,085 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 192 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 08:37:38,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 726 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 08:37:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 08:37:38,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-23 08:37:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 85 states have internal predecessors, (106), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-23 08:37:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 185 transitions. [2023-11-23 08:37:38,103 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 185 transitions. Word has length 132 [2023-11-23 08:37:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:37:38,104 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 185 transitions. [2023-11-23 08:37:38,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 08:37:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 185 transitions. [2023-11-23 08:37:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 08:37:38,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:37:38,106 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:37:38,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 08:37:38,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:38,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:37:38,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:37:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash 241353119, now seen corresponding path program 1 times [2023-11-23 08:37:38,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:37:38,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395645014] [2023-11-23 08:37:38,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:38,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:37:38,404 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:37:38,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936578779] [2023-11-23 08:37:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:38,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:38,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:38,421 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:37:38,440 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 08:37:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:38,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:37:38,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:37:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 08:37:38,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:37:38,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:37:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395645014] [2023-11-23 08:37:38,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:37:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936578779] [2023-11-23 08:37:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936578779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:37:38,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:37:38,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 08:37:38,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287818015] [2023-11-23 08:37:38,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:37:38,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:37:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:37:38,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:37:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:37:38,945 INFO L87 Difference]: Start difference. First operand 140 states and 185 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 08:37:39,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:37:39,184 INFO L93 Difference]: Finished difference Result 274 states and 363 transitions. [2023-11-23 08:37:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:37:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133 [2023-11-23 08:37:39,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:37:39,185 INFO L225 Difference]: With dead ends: 274 [2023-11-23 08:37:39,185 INFO L226 Difference]: Without dead ends: 144 [2023-11-23 08:37:39,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:37:39,187 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:37:39,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 668 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 08:37:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-23 08:37:39,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-23 08:37:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 88 states have internal predecessors, (109), 40 states have call successors, (40), 15 states have call predecessors, (40), 16 states have return successors, (40), 40 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-23 08:37:39,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 189 transitions. [2023-11-23 08:37:39,196 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 189 transitions. Word has length 133 [2023-11-23 08:37:39,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:37:39,196 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 189 transitions. [2023-11-23 08:37:39,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 08:37:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2023-11-23 08:37:39,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-23 08:37:39,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:37:39,198 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:37:39,218 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 08:37:39,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:39,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:37:39,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:37:39,413 INFO L85 PathProgramCache]: Analyzing trace with hash -12783169, now seen corresponding path program 1 times [2023-11-23 08:37:39,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:37:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599632474] [2023-11-23 08:37:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:39,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:37:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:37:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:37:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:37:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 08:37:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:37:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:37:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:37:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:37:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 08:37:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 08:37:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 08:37:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 08:37:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 08:37:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:37:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:37:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 08:37:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 08:37:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 08:37:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 08:37:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-23 08:37:40,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:37:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599632474] [2023-11-23 08:37:40,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599632474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:37:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325729044] [2023-11-23 08:37:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:37:40,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:37:40,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:37:40,443 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 08:37:40,459 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 08:37:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:37:40,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 2434 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 08:37:40,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:37:40,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 08:37:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-23 08:37:41,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:37:41,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325729044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:37:41,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:37:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2023-11-23 08:37:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781885465] [2023-11-23 08:37:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:37:41,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 08:37:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:37:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 08:37:41,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-23 08:37:41,323 INFO L87 Difference]: Start difference. First operand 144 states and 189 transitions. Second operand has 11 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 6 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 08:37:44,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:37:46,563 WARN L539 Checker$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 08:37:48,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 08:37:50,681 WARN L539 Checker$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 08:37:52,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:37:54,817 WARN L539 Checker$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 08:37:56,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:37:59,434 WARN L539 Checker$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 08:38:01,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:38:03,604 WARN L539 Checker$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 08:38:05,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:38:07,681 WARN L539 Checker$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 08:38:09,726 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 08:38:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:38:10,367 INFO L93 Difference]: Finished difference Result 380 states and 500 transitions. [2023-11-23 08:38:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 08:38:10,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 6 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 141 [2023-11-23 08:38:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:38:10,370 INFO L225 Difference]: With dead ends: 380 [2023-11-23 08:38:10,370 INFO L226 Difference]: Without dead ends: 260 [2023-11-23 08:38:10,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 169 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-11-23 08:38:10,372 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 221 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 96 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time [2023-11-23 08:38:10,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 587 Invalid, 1803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1694 Invalid, 13 Unknown, 0 Unchecked, 28.9s Time] [2023-11-23 08:38:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-23 08:38:10,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2023-11-23 08:38:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 160 states have (on average 1.26875) internal successors, (203), 163 states have internal predecessors, (203), 66 states have call successors, (66), 28 states have call predecessors, (66), 31 states have return successors, (71), 66 states have call predecessors, (71), 64 states have call successors, (71) [2023-11-23 08:38:10,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 340 transitions. [2023-11-23 08:38:10,395 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 340 transitions. Word has length 141 [2023-11-23 08:38:10,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:38:10,395 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 340 transitions. [2023-11-23 08:38:10,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 6 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2023-11-23 08:38:10,396 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 340 transitions. [2023-11-23 08:38:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 08:38:10,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:38:10,398 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-23 08:38:10,419 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 08:38:10,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:38:10,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:38:10,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:38:10,616 INFO L85 PathProgramCache]: Analyzing trace with hash -469921384, now seen corresponding path program 1 times [2023-11-23 08:38:10,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:38:10,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960751947] [2023-11-23 08:38:10,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:38:10,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:38:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:38:10,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:38:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960751947] [2023-11-23 08:38:10,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 08:38:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959964198] [2023-11-23 08:38:10,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:38:10,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:38:10,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:38:10,708 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 08:38:10,709 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 08:38:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:38:11,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 2567 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:38:11,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:38:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2023-11-23 08:38:11,227 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:38:11,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959964198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:38:11,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:38:11,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 08:38:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278597984] [2023-11-23 08:38:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:38:11,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:38:11,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:38:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:38:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:38:11,229 INFO L87 Difference]: Start difference. First operand 258 states and 340 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 08:38:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:38:11,505 INFO L93 Difference]: Finished difference Result 490 states and 646 transitions. [2023-11-23 08:38:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:38:11,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155 [2023-11-23 08:38:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:38:11,508 INFO L225 Difference]: With dead ends: 490 [2023-11-23 08:38:11,508 INFO L226 Difference]: Without dead ends: 260 [2023-11-23 08:38:11,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 08:38:11,510 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:38:11,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 668 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:38:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2023-11-23 08:38:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2023-11-23 08:38:11,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 162 states have (on average 1.2654320987654322) internal successors, (205), 164 states have internal predecessors, (205), 66 states have call successors, (66), 28 states have call predecessors, (66), 31 states have return successors, (71), 67 states have call predecessors, (71), 64 states have call successors, (71) [2023-11-23 08:38:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 342 transitions. [2023-11-23 08:38:11,528 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 342 transitions. Word has length 155 [2023-11-23 08:38:11,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:38:11,529 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 342 transitions. [2023-11-23 08:38:11,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-23 08:38:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 342 transitions. [2023-11-23 08:38:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 08:38:11,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:38:11,531 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-23 08:38:11,556 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 08:38:11,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:38:11,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:38:11,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:38:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1162882615, now seen corresponding path program 1 times [2023-11-23 08:38:11,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:38:11,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014809706] [2023-11-23 08:38:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:38:11,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:38:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:38:11,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:38:11,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014809706] [2023-11-23 08:38:11,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 08:38:11,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304028530] [2023-11-23 08:38:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:38:11,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:38:11,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:38:11,871 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 08:38:11,872 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 08:38:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:38:12,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 76 conjunts are in the unsatisfiable core [2023-11-23 08:38:12,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:38:12,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 08:38:12,325 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 08:38:12,529 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-23 08:38:12,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-23 08:38:12,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:38:12,581 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2023-11-23 08:38:12,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 1 [2023-11-23 08:38:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:38:18,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 08:38:18,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-23 08:38:18,048 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-23 08:38:18,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-11-23 08:38:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 141 proven. 13 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 08:38:33,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:38:38,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304028530] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:38:38,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:38:38,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-11-23 08:38:38,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386832731] [2023-11-23 08:38:38,169 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 08:38:38,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-23 08:38:38,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:38:38,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-23 08:38:38,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=704, Unknown=9, NotChecked=0, Total=812 [2023-11-23 08:38:38,171 INFO L87 Difference]: Start difference. First operand 260 states and 342 transitions. Second operand has 22 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 12 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) [2023-11-23 08:38:40,756 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 08:38:42,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:38:47,676 WARN L539 Checker$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 08:38:49,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:38:51,997 WARN L539 Checker$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 08:38:54,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:38:56,114 WARN L539 Checker$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 08:38:58,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:00,354 WARN L539 Checker$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 08:39:02,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:04,670 WARN L539 Checker$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 08:39:06,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:08,845 WARN L539 Checker$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 08:39:10,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:13,112 WARN L539 Checker$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 08:39:15,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:17,262 WARN L539 Checker$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 08:39:19,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:21,374 WARN L539 Checker$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 08:39:23,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:28,423 WARN L539 Checker$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 08:39:31,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:33,946 WARN L539 Checker$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 08:39:37,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 08:39:40,343 WARN L539 Checker$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 08:39:42,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:44,547 WARN L539 Checker$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 08:39:47,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:49,619 WARN L539 Checker$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 08:39:52,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:54,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:39:58,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:00,935 WARN L539 Checker$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 08:40:03,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:05,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:08,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:10,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:40:10,443 INFO L93 Difference]: Finished difference Result 452 states and 596 transitions. [2023-11-23 08:40:10,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-23 08:40:10,443 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 12 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) Word has length 155 [2023-11-23 08:40:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:40:10,446 INFO L225 Difference]: With dead ends: 452 [2023-11-23 08:40:10,447 INFO L226 Difference]: Without dead ends: 378 [2023-11-23 08:40:10,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 163 SyntacticMatches, 7 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=388, Invalid=2572, Unknown=10, NotChecked=0, Total=2970 [2023-11-23 08:40:10,449 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 661 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 2859 mSolverCounterSat, 318 mSolverCounterUnsat, 38 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2859 IncrementalHoareTripleChecker+Invalid, 38 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.8s IncrementalHoareTripleChecker+Time [2023-11-23 08:40:10,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 547 Invalid, 3215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [318 Valid, 2859 Invalid, 38 Unknown, 0 Unchecked, 87.8s Time] [2023-11-23 08:40:10,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-23 08:40:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 296. [2023-11-23 08:40:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 191 states have (on average 1.2827225130890052) internal successors, (245), 194 states have internal predecessors, (245), 68 states have call successors, (68), 33 states have call predecessors, (68), 36 states have return successors, (73), 68 states have call predecessors, (73), 66 states have call successors, (73) [2023-11-23 08:40:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 386 transitions. [2023-11-23 08:40:10,470 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 386 transitions. Word has length 155 [2023-11-23 08:40:10,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:40:10,471 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 386 transitions. [2023-11-23 08:40:10,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 4.315789473684211) internal successors, (82), 19 states have internal predecessors, (82), 12 states have call successors, (28), 7 states have call predecessors, (28), 8 states have return successors, (26), 10 states have call predecessors, (26), 12 states have call successors, (26) [2023-11-23 08:40:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 386 transitions. [2023-11-23 08:40:10,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 08:40:10,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:40:10,473 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-23 08:40:10,494 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 08:40:10,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:40:10,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:40:10,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:40:10,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1559302134, now seen corresponding path program 1 times [2023-11-23 08:40:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:40:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659494881] [2023-11-23 08:40:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:40:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:40:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:40:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:40:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 08:40:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:40:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:40:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:40:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 08:40:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 08:40:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 08:40:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:40:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 08:40:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 08:40:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 08:40:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 08:40:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 08:40:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 08:40:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 08:40:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 08:40:12,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:40:12,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659494881] [2023-11-23 08:40:12,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659494881] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:40:12,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633802316] [2023-11-23 08:40:12,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:40:12,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:40:12,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:40:12,540 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 08:40:12,542 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 08:40:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:13,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-23 08:40:13,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:40:13,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 08:40:14,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 08:40:14,647 INFO L349 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2023-11-23 08:40:14,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-11-23 08:40:16,969 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-23 08:40:16,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:40:16,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633802316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:40:16,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:40:16,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [13] total 26 [2023-11-23 08:40:16,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829282446] [2023-11-23 08:40:16,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:40:16,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 08:40:16,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:40:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 08:40:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2023-11-23 08:40:16,972 INFO L87 Difference]: Start difference. First operand 296 states and 386 transitions. Second operand has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 15 states have internal predecessors, (80), 6 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 08:40:20,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-11-23 08:40:22,896 WARN L539 Checker$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 08:40:24,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:27,291 WARN L539 Checker$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 08:40:29,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:35,500 WARN L539 Checker$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 08:40:37,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:40,053 WARN L539 Checker$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 08:40:42,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:44,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:46,778 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 08:40:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:40:48,179 INFO L93 Difference]: Finished difference Result 673 states and 876 transitions. [2023-11-23 08:40:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 08:40:48,179 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 15 states have internal predecessors, (80), 6 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) Word has length 155 [2023-11-23 08:40:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:40:48,181 INFO L225 Difference]: With dead ends: 673 [2023-11-23 08:40:48,181 INFO L226 Difference]: Without dead ends: 444 [2023-11-23 08:40:48,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=173, Invalid=1159, Unknown=0, NotChecked=0, Total=1332 [2023-11-23 08:40:48,183 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 238 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 28 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2023-11-23 08:40:48,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1733 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1247 Invalid, 11 Unknown, 0 Unchecked, 29.6s Time] [2023-11-23 08:40:48,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-23 08:40:48,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 342. [2023-11-23 08:40:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 222 states have (on average 1.2702702702702702) internal successors, (282), 225 states have internal predecessors, (282), 75 states have call successors, (75), 41 states have call predecessors, (75), 44 states have return successors, (80), 75 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-23 08:40:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 437 transitions. [2023-11-23 08:40:48,204 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 437 transitions. Word has length 155 [2023-11-23 08:40:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:40:48,205 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 437 transitions. [2023-11-23 08:40:48,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.714285714285714) internal successors, (80), 15 states have internal predecessors, (80), 6 states have call successors, (28), 4 states have call predecessors, (28), 7 states have return successors, (26), 7 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-23 08:40:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 437 transitions. [2023-11-23 08:40:48,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 08:40:48,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:40:48,207 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-23 08:40:48,228 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 08:40:48,420 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,SelfDestructingSolverStorable7 [2023-11-23 08:40:48,420 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:40:48,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:40:48,421 INFO L85 PathProgramCache]: Analyzing trace with hash -351740424, now seen corresponding path program 1 times [2023-11-23 08:40:48,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:40:48,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393829555] [2023-11-23 08:40:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:40:48,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:40:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:40:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:40:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 08:40:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:40:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:40:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:40:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 08:40:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 08:40:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 08:40:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:40:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 08:40:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 08:40:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 08:40:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 08:40:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 08:40:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 08:40:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 08:40:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 08:40:49,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:40:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393829555] [2023-11-23 08:40:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393829555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:40:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094526025] [2023-11-23 08:40:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:40:49,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:40:49,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:40:49,528 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 08:40:49,530 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 08:40:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:49,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-23 08:40:49,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:40:52,151 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$.offset| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0))) (exists ((aws_hash_iter_is_valid_~iter.offset Int) (aws_hash_iter_is_valid_~iter.base Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_iter_is_valid_~iter.base) aws_hash_iter_is_valid_~iter.offset) 0)))) is different from true [2023-11-23 08:40:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-23 08:40:54,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:40:54,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094526025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:40:54,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:40:54,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2023-11-23 08:40:54,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163297591] [2023-11-23 08:40:54,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:40:54,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 08:40:54,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:40:54,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 08:40:54,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=104, Unknown=2, NotChecked=20, Total=156 [2023-11-23 08:40:54,669 INFO L87 Difference]: Start difference. First operand 342 states and 437 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 08:40:57,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:40:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:40:58,529 INFO L93 Difference]: Finished difference Result 589 states and 767 transitions. [2023-11-23 08:40:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:40:58,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 155 [2023-11-23 08:40:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:40:58,531 INFO L225 Difference]: With dead ends: 589 [2023-11-23 08:40:58,531 INFO L226 Difference]: Without dead ends: 344 [2023-11-23 08:40:58,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=36, Invalid=122, Unknown=2, NotChecked=22, Total=182 [2023-11-23 08:40:58,533 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 197 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 08:40:58,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 177 Invalid, 1 Unknown, 197 Unchecked, 3.7s Time] [2023-11-23 08:40:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-23 08:40:58,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-11-23 08:40:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 224 states have (on average 1.2589285714285714) internal successors, (282), 225 states have internal predecessors, (282), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (80), 75 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-23 08:40:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 437 transitions. [2023-11-23 08:40:58,574 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 437 transitions. Word has length 155 [2023-11-23 08:40:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:40:58,575 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 437 transitions. [2023-11-23 08:40:58,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 08:40:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 437 transitions. [2023-11-23 08:40:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 08:40:58,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:40:58,577 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-23 08:40:58,594 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 08:40:58,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:40:58,792 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:40:58,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:40:58,793 INFO L85 PathProgramCache]: Analyzing trace with hash -912525288, now seen corresponding path program 1 times [2023-11-23 08:40:58,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:40:58,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088570807] [2023-11-23 08:40:58,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:40:58,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:40:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:40:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:40:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 08:40:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:40:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:40:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:40:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:40:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:40:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 08:40:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 08:40:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 08:40:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:40:59,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:40:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:41:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 08:41:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 08:41:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:41:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 08:41:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-23 08:41:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 08:41:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 08:41:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 08:41:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,243 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-23 08:41:00,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:41:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088570807] [2023-11-23 08:41:00,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088570807] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:41:00,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181576343] [2023-11-23 08:41:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:41:00,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:41:00,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:41:00,245 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 08:41:00,272 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 08:41:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:00,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 2529 conjuncts, 75 conjunts are in the unsatisfiable core [2023-11-23 08:41:00,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:41:00,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 08:41:00,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 08:41:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 130 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-23 08:41:03,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:41:10,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181576343] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:41:10,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:41:10,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 21 [2023-11-23 08:41:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287108094] [2023-11-23 08:41:10,203 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:41:10,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 08:41:10,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:41:10,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 08:41:10,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=585, Unknown=2, NotChecked=0, Total=650 [2023-11-23 08:41:10,205 INFO L87 Difference]: Start difference. First operand 344 states and 437 transitions. Second operand has 21 states, 18 states have (on average 5.222222222222222) internal successors, (94), 17 states have internal predecessors, (94), 8 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (35), 7 states have call predecessors, (35), 8 states have call successors, (35) [2023-11-23 08:41:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:41:24,141 INFO L93 Difference]: Finished difference Result 631 states and 814 transitions. [2023-11-23 08:41:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 08:41:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.222222222222222) internal successors, (94), 17 states have internal predecessors, (94), 8 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (35), 7 states have call predecessors, (35), 8 states have call successors, (35) Word has length 161 [2023-11-23 08:41:24,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:41:24,151 INFO L225 Difference]: With dead ends: 631 [2023-11-23 08:41:24,151 INFO L226 Difference]: Without dead ends: 354 [2023-11-23 08:41:24,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 273 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=130, Invalid=990, Unknown=2, NotChecked=0, Total=1122 [2023-11-23 08:41:24,153 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 193 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:41:24,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 1056 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-11-23 08:41:24,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-23 08:41:24,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 344. [2023-11-23 08:41:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 224 states have (on average 1.2410714285714286) internal successors, (278), 225 states have internal predecessors, (278), 75 states have call successors, (75), 43 states have call predecessors, (75), 44 states have return successors, (80), 75 states have call predecessors, (80), 73 states have call successors, (80) [2023-11-23 08:41:24,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 433 transitions. [2023-11-23 08:41:24,187 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 433 transitions. Word has length 161 [2023-11-23 08:41:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:41:24,190 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 433 transitions. [2023-11-23 08:41:24,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.222222222222222) internal successors, (94), 17 states have internal predecessors, (94), 8 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (35), 7 states have call predecessors, (35), 8 states have call successors, (35) [2023-11-23 08:41:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 433 transitions. [2023-11-23 08:41:24,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-23 08:41:24,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:41:24,193 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 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] [2023-11-23 08:41:24,211 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 08:41:24,409 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,SelfDestructingSolverStorable9 [2023-11-23 08:41:24,409 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:41:24,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:41:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1661710073, now seen corresponding path program 1 times [2023-11-23 08:41:24,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:41:24,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345877716] [2023-11-23 08:41:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:41:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:41:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:41:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:41:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 08:41:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 08:41:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:41:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 08:41:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-23 08:41:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:41:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 08:41:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 08:41:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 08:41:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 08:41:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:41:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 08:41:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 08:41:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 08:41:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:41:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 08:41:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 08:41:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-23 08:41:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 08:41:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 08:41:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 08:41:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-11-23 08:41:26,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:41:26,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345877716] [2023-11-23 08:41:26,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345877716] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:41:26,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278171493] [2023-11-23 08:41:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:41:26,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:41:26,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:41:26,334 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 08:41:26,368 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 08:41:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:41:26,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-23 08:41:26,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:41:27,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 08:41:27,184 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 08:41:28,613 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 08:41:28,613 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 08:41:29,636 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 16 treesize of output 11 [2023-11-23 08:41:30,009 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 16 treesize of output 11 [2023-11-23 08:41:31,193 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 175 proven. 21 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 08:41:31,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:41:34,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278171493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:41:34,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:41:34,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2023-11-23 08:41:34,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572412250] [2023-11-23 08:41:34,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:41:34,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 08:41:34,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:41:34,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 08:41:34,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=943, Unknown=16, NotChecked=0, Total=1056 [2023-11-23 08:41:34,849 INFO L87 Difference]: Start difference. First operand 344 states and 433 transitions. Second operand has 26 states, 23 states have (on average 5.434782608695652) internal successors, (125), 21 states have internal predecessors, (125), 12 states have call successors, (55), 9 states have call predecessors, (55), 8 states have return successors, (49), 10 states have call predecessors, (49), 11 states have call successors, (49) [2023-11-23 08:41:39,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:41:43,413 WARN L539 Checker$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 08:41:45,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:41:47,855 WARN L539 Checker$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 08:41:50,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:41:53,122 WARN L539 Checker$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 08:41:56,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15