./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_be64_harness_negated.i --full-output --preprocessor.use.memory.slicer true --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_byte_cursor_read_be64_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 781bda6fed61385a8a2dfd24d0779b588b4e3a263a6bd1d451e7bf9a103d1f1e --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:11:10,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:11:10,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:11:10,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:11:10,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:11:10,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:11:10,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:11:10,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:11:10,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:11:10,661 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:11:10,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:11:10,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:11:10,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:11:10,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:11:10,663 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:11:10,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:11:10,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:11:10,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:11:10,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:11:10,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:11:10,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:11:10,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:11:10,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:11:10,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:11:10,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:11:10,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:11:10,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:11:10,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:11:10,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:11:10,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:11:10,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:11:10,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:11:10,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:11:10,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:11:10,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781bda6fed61385a8a2dfd24d0779b588b4e3a263a6bd1d451e7bf9a103d1f1e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:11:10,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:11:10,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:11:10,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:11:10,871 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:11:10,872 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:11:10,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_be64_harness_negated.i [2023-11-23 07:11:11,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:11:12,418 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:11:12,419 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_be64_harness_negated.i [2023-11-23 07:11:12,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d997326d/13488824de6d4f5abf0faf6bc62edadc/FLAG002348a88 [2023-11-23 07:11:12,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d997326d/13488824de6d4f5abf0faf6bc62edadc [2023-11-23 07:11:12,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:11:12,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:11:12,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:11:12,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:11:12,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:11:12,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:11:12" (1/1) ... [2023-11-23 07:11:12,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67063575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:12, skipping insertion in model container [2023-11-23 07:11:12,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:11:12" (1/1) ... [2023-11-23 07:11:12,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:11:12,730 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_byte_cursor_read_be64_harness_negated.i[4499,4512] [2023-11-23 07:11:12,736 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_byte_cursor_read_be64_harness_negated.i[4559,4572] [2023-11-23 07:11:13,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,336 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,346 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,347 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,633 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:11:13,636 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:11:13,638 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:11:13,639 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:11:13,641 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:11:13,642 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:11:13,642 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:11:13,643 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:11:13,645 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:11:13,647 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:11:13,858 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,858 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:13,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:11:13,954 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:11:13,970 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_byte_cursor_read_be64_harness_negated.i[4499,4512] [2023-11-23 07:11:13,971 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_byte_cursor_read_be64_harness_negated.i[4559,4572] [2023-11-23 07:11:14,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,040 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,041 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,041 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,044 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,047 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,048 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,051 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,070 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:11:14,071 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:11:14,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:11:14,072 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:11:14,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:11:14,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:11:14,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:11:14,073 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:11:14,074 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:11:14,074 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:11:14,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2023-11-23 07:11:14,145 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,145 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:11:14,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2023-11-23 07:11:14,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:11:14,359 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,360 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,360 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,361 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,361 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,361 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,361 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,361 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,362 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,362 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,362 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,362 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,363 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,363 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,363 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,364 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,364 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,364 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:11:14,370 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:11:14,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14 WrapperNode [2023-11-23 07:11:14,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:11:14,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:11:14,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:11:14,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:11:14,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,531 INFO L138 Inliner]: procedures = 690, calls = 2648, calls flagged for inlining = 61, calls inlined = 11, statements flattened = 1022 [2023-11-23 07:11:14,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:11:14,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:11:14,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:11:14,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:11:14,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,637 INFO L188 MemorySlicer]: Split 569 memory accesses to 12 slices as follows [8, 2, 5, 256, 0, 4, 37, 0, 246, 6, 2, 3]. 45 percent of accesses are in the largest equivalence class. The 509 initializations are split as follows [2, 2, 5, 256, 0, 2, 2, 0, 236, 0, 1, 3]. The 15 writes are split as follows [0, 0, 0, 0, 0, 0, 9, 0, 4, 2, 0, 0]. [2023-11-23 07:11:14,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:11:14,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:11:14,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:11:14,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:11:14,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (1/1) ... [2023-11-23 07:11:14,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:11:14,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:14,818 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 07:11:14,849 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 07:11:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2023-11-23 07:11:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2023-11-23 07:11:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2023-11-23 07:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2023-11-23 07:11:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2023-11-23 07:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 07:11:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 07:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:11:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:11:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2023-11-23 07:11:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2023-11-23 07:11:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2023-11-23 07:11:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2023-11-23 07:11:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#9 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#10 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#11 [2023-11-23 07:11:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 07:11:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 07:11:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 07:11:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 07:11:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 07:11:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 07:11:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 07:11:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_ntoh64 [2023-11-23 07:11:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_ntoh64 [2023-11-23 07:11:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:11:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:11:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:11:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:11:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:11:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:11:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:11:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:11:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-23 07:11:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-23 07:11:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-23 07:11:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:11:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:11:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:11:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:11:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:11:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-23 07:11:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-23 07:11:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:11:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:11:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:11:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:11:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:11:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:11:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:11:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:11:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 07:11:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 07:11:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 07:11:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 07:11:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:11:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:11:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 07:11:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 07:11:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 07:11:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 07:11:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:11:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:11:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:11:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:11:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 07:11:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:11:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:11:14,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2023-11-23 07:11:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2023-11-23 07:11:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#9 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#10 [2023-11-23 07:11:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#11 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:11:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 07:11:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 07:11:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 07:11:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 07:11:15,335 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:11:15,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:11:16,742 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:11:16,842 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:11:16,842 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 07:11:16,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:11:16 BoogieIcfgContainer [2023-11-23 07:11:16,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:11:16,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:11:16,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:11:16,847 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:11:16,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:11:12" (1/3) ... [2023-11-23 07:11:16,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dc3d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:11:16, skipping insertion in model container [2023-11-23 07:11:16,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:11:14" (2/3) ... [2023-11-23 07:11:16,848 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62dc3d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:11:16, skipping insertion in model container [2023-11-23 07:11:16,848 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:11:16" (3/3) ... [2023-11-23 07:11:16,849 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness_negated.i [2023-11-23 07:11:16,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:11:16,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:11:16,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:11:16,919 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;@cc73fcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:11:16,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:11:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 108 states have internal predecessors, (144), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-23 07:11:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 07:11:16,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:16,939 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:16,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:16,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:16,945 INFO L85 PathProgramCache]: Analyzing trace with hash -189697953, now seen corresponding path program 1 times [2023-11-23 07:11:16,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:16,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043819337] [2023-11-23 07:11:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:16,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 07:11:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:11:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:11:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:11:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:11:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:11:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:11:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:11:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 07:11:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:11:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:11:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:11:18,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:18,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043819337] [2023-11-23 07:11:18,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043819337] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797775054] [2023-11-23 07:11:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:18,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:18,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:18,395 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 07:11:18,398 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 07:11:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:19,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 07:11:19,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 07:11:19,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:19,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797775054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:19,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:19,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2023-11-23 07:11:19,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519725818] [2023-11-23 07:11:19,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 07:11:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:19,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 07:11:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:11:19,104 INFO L87 Difference]: Start difference. First operand has 172 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 108 states have internal predecessors, (144), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:19,216 INFO L93 Difference]: Finished difference Result 338 states and 509 transitions. [2023-11-23 07:11:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 07:11:19,218 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 122 [2023-11-23 07:11:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:19,225 INFO L225 Difference]: With dead ends: 338 [2023-11-23 07:11:19,225 INFO L226 Difference]: Without dead ends: 170 [2023-11-23 07:11:19,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:11:19,235 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:19,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:11:19,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-23 07:11:19,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2023-11-23 07:11:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 106 states have (on average 1.330188679245283) internal successors, (141), 107 states have internal predecessors, (141), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-23 07:11:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 240 transitions. [2023-11-23 07:11:19,293 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 240 transitions. Word has length 122 [2023-11-23 07:11:19,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:19,296 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 240 transitions. [2023-11-23 07:11:19,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:19,297 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 240 transitions. [2023-11-23 07:11:19,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 07:11:19,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:19,299 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:19,318 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 07:11:19,515 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 07:11:19,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:19,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:19,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1240421141, now seen corresponding path program 1 times [2023-11-23 07:11:19,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:19,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161862691] [2023-11-23 07:11:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:19,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-23 07:11:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:11:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:11:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:11:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:11:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:11:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:11:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:11:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 07:11:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:11:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:11:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:11:20,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:20,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161862691] [2023-11-23 07:11:20,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161862691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:20,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121331322] [2023-11-23 07:11:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:20,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:20,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:20,171 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 07:11:20,208 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 07:11:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:20,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:11:20,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:20,880 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 07:11:20,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:20,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121331322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:20,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:20,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 07:11:20,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26920206] [2023-11-23 07:11:20,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:20,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:11:20,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:20,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:11:20,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:20,883 INFO L87 Difference]: Start difference. First operand 170 states and 240 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:21,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:21,129 INFO L93 Difference]: Finished difference Result 320 states and 463 transitions. [2023-11-23 07:11:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:11:21,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 122 [2023-11-23 07:11:21,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:21,135 INFO L225 Difference]: With dead ends: 320 [2023-11-23 07:11:21,135 INFO L226 Difference]: Without dead ends: 172 [2023-11-23 07:11:21,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:21,138 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 46 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:21,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 743 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:11:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-23 07:11:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-11-23 07:11:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 109 states have internal predecessors, (142), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (57), 49 states have call predecessors, (57), 49 states have call successors, (57) [2023-11-23 07:11:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 249 transitions. [2023-11-23 07:11:21,169 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 249 transitions. Word has length 122 [2023-11-23 07:11:21,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:21,170 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 249 transitions. [2023-11-23 07:11:21,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:21,170 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 249 transitions. [2023-11-23 07:11:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-23 07:11:21,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:21,174 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:21,215 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 07:11:21,393 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 07:11:21,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:21,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1318882384, now seen corresponding path program 1 times [2023-11-23 07:11:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357383542] [2023-11-23 07:11:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:21,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 07:11:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 07:11:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 07:11:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 07:11:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:11:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:11:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:11:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:11:21,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357383542] [2023-11-23 07:11:21,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357383542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138883020] [2023-11-23 07:11:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:21,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:21,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:21,977 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 07:11:21,993 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 07:11:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:22,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:11:22,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-23 07:11:22,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:22,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138883020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:22,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:22,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-23 07:11:22,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340406926] [2023-11-23 07:11:22,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:22,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:11:22,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:22,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:11:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:11:22,611 INFO L87 Difference]: Start difference. First operand 172 states and 249 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:11:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:22,924 INFO L93 Difference]: Finished difference Result 306 states and 444 transitions. [2023-11-23 07:11:22,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:11:22,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 124 [2023-11-23 07:11:22,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:22,926 INFO L225 Difference]: With dead ends: 306 [2023-11-23 07:11:22,926 INFO L226 Difference]: Without dead ends: 172 [2023-11-23 07:11:22,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:11:22,927 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 45 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:22,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 946 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:11:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-23 07:11:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-11-23 07:11:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 109 states have internal predecessors, (142), 50 states have call successors, (50), 13 states have call predecessors, (50), 14 states have return successors, (55), 49 states have call predecessors, (55), 49 states have call successors, (55) [2023-11-23 07:11:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2023-11-23 07:11:22,936 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 124 [2023-11-23 07:11:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:22,937 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2023-11-23 07:11:22,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-23 07:11:22,937 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2023-11-23 07:11:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-23 07:11:22,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:22,939 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:22,976 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 07:11:23,163 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 07:11:23,164 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:23,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:23,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1423516363, now seen corresponding path program 2 times [2023-11-23 07:11:23,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:23,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206777338] [2023-11-23 07:11:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:23,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:11:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:11:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:11:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:11:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:11:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-23 07:11:23,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:23,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206777338] [2023-11-23 07:11:23,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206777338] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:23,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519613864] [2023-11-23 07:11:23,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:11:23,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:23,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:23,784 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 07:11:23,814 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 07:11:24,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 07:11:24,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:11:24,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:11:24,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 07:11:24,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:24,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519613864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:24,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:24,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:11:24,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038114760] [2023-11-23 07:11:24,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:24,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:11:24,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:11:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:24,385 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 07:11:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:24,679 INFO L93 Difference]: Finished difference Result 180 states and 255 transitions. [2023-11-23 07:11:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:11:24,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 126 [2023-11-23 07:11:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:24,681 INFO L225 Difference]: With dead ends: 180 [2023-11-23 07:11:24,681 INFO L226 Difference]: Without dead ends: 178 [2023-11-23 07:11:24,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:11:24,682 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 5 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:24,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1319 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:11:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-23 07:11:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2023-11-23 07:11:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 110 states have (on average 1.3181818181818181) internal successors, (145), 112 states have internal predecessors, (145), 51 states have call successors, (51), 14 states have call predecessors, (51), 15 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2023-11-23 07:11:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 252 transitions. [2023-11-23 07:11:24,689 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 252 transitions. Word has length 126 [2023-11-23 07:11:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:24,690 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 252 transitions. [2023-11-23 07:11:24,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-23 07:11:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 252 transitions. [2023-11-23 07:11:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-23 07:11:24,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:24,691 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:24,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 07:11:24,906 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 07:11:24,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:24,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash 224059846, now seen corresponding path program 3 times [2023-11-23 07:11:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:24,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773574254] [2023-11-23 07:11:24,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:24,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:11:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:11:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:11:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:11:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:11:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 07:11:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:25,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773574254] [2023-11-23 07:11:25,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773574254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:25,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568184745] [2023-11-23 07:11:25,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 07:11:25,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:25,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:25,547 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 07:11:25,585 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 07:11:26,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 07:11:26,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:11:26,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:11:26,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-23 07:11:26,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:26,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568184745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:26,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:26,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-23 07:11:26,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86850243] [2023-11-23 07:11:26,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:26,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:11:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:11:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:26,293 INFO L87 Difference]: Start difference. First operand 177 states and 252 transitions. Second operand has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:26,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:26,646 INFO L93 Difference]: Finished difference Result 305 states and 432 transitions. [2023-11-23 07:11:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:11:26,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 128 [2023-11-23 07:11:26,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:26,648 INFO L225 Difference]: With dead ends: 305 [2023-11-23 07:11:26,649 INFO L226 Difference]: Without dead ends: 177 [2023-11-23 07:11:26,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:11:26,650 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 2 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:26,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1244 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:11:26,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-23 07:11:26,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-23 07:11:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 110 states have (on average 1.3181818181818181) internal successors, (145), 112 states have internal predecessors, (145), 51 states have call successors, (51), 14 states have call predecessors, (51), 15 states have return successors, (55), 50 states have call predecessors, (55), 50 states have call successors, (55) [2023-11-23 07:11:26,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 251 transitions. [2023-11-23 07:11:26,657 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 251 transitions. Word has length 128 [2023-11-23 07:11:26,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:26,657 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 251 transitions. [2023-11-23 07:11:26,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 251 transitions. [2023-11-23 07:11:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-23 07:11:26,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:26,659 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:26,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:26,875 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 07:11:26,875 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:26,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash 865918123, now seen corresponding path program 4 times [2023-11-23 07:11:26,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:26,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499969177] [2023-11-23 07:11:26,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:26,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:11:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:11:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:11:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:11:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:11:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:11:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 07:11:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-23 07:11:27,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:27,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499969177] [2023-11-23 07:11:27,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499969177] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:27,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79697848] [2023-11-23 07:11:27,468 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 07:11:27,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:27,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:27,485 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 07:11:27,511 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 07:11:28,042 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 07:11:28,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:11:28,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 2870 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-23 07:11:28,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 07:11:28,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:28,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79697848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:28,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:28,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-23 07:11:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187110951] [2023-11-23 07:11:28,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:28,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:11:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:11:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:11:28,167 INFO L87 Difference]: Start difference. First operand 177 states and 251 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 07:11:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:28,530 INFO L93 Difference]: Finished difference Result 310 states and 439 transitions. [2023-11-23 07:11:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:11:28,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 130 [2023-11-23 07:11:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:28,532 INFO L225 Difference]: With dead ends: 310 [2023-11-23 07:11:28,532 INFO L226 Difference]: Without dead ends: 177 [2023-11-23 07:11:28,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:11:28,533 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 137 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:28,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1072 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:11:28,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-23 07:11:28,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-23 07:11:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 110 states have (on average 1.3181818181818181) internal successors, (145), 112 states have internal predecessors, (145), 51 states have call successors, (51), 14 states have call predecessors, (51), 15 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2023-11-23 07:11:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 248 transitions. [2023-11-23 07:11:28,539 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 248 transitions. Word has length 130 [2023-11-23 07:11:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:28,540 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 248 transitions. [2023-11-23 07:11:28,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 5 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2023-11-23 07:11:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 248 transitions. [2023-11-23 07:11:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-23 07:11:28,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:28,541 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:28,556 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 07:11:28,756 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 07:11:28,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:28,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1853921306, now seen corresponding path program 1 times [2023-11-23 07:11:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:28,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554643049] [2023-11-23 07:11:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:28,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:29,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:11:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:11:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:11:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:11:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 07:11:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:11:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:11:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 07:11:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 07:11:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554643049] [2023-11-23 07:11:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554643049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:29,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:11:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:11:29,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518720093] [2023-11-23 07:11:29,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:29,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:11:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:29,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:11:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:11:29,333 INFO L87 Difference]: Start difference. First operand 177 states and 248 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:30,203 INFO L93 Difference]: Finished difference Result 335 states and 472 transitions. [2023-11-23 07:11:30,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:11:30,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2023-11-23 07:11:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:30,204 INFO L225 Difference]: With dead ends: 335 [2023-11-23 07:11:30,204 INFO L226 Difference]: Without dead ends: 192 [2023-11-23 07:11:30,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:30,205 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 158 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:30,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 498 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:11:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-23 07:11:30,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 180. [2023-11-23 07:11:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 112 states have (on average 1.3303571428571428) internal successors, (149), 115 states have internal predecessors, (149), 51 states have call successors, (51), 14 states have call predecessors, (51), 16 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-23 07:11:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 253 transitions. [2023-11-23 07:11:30,214 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 253 transitions. Word has length 132 [2023-11-23 07:11:30,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:30,215 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 253 transitions. [2023-11-23 07:11:30,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 253 transitions. [2023-11-23 07:11:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 07:11:30,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:30,216 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:30,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 07:11:30,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:30,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:30,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1241515781, now seen corresponding path program 1 times [2023-11-23 07:11:30,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:30,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963899528] [2023-11-23 07:11:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:30,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 07:11:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:11:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:11:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:11:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:11:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:11:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 07:11:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 07:11:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963899528] [2023-11-23 07:11:31,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963899528] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356289774] [2023-11-23 07:11:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:31,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:31,045 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 07:11:31,067 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 07:11:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:11:31,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 104 proven. 1 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-23 07:11:31,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:11:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 07:11:31,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356289774] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:31,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:11:31,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2023-11-23 07:11:31,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363747812] [2023-11-23 07:11:31,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:31,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:11:31,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:31,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:11:31,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:31,890 INFO L87 Difference]: Start difference. First operand 180 states and 253 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:32,155 INFO L93 Difference]: Finished difference Result 332 states and 472 transitions. [2023-11-23 07:11:32,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:11:32,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 133 [2023-11-23 07:11:32,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:32,157 INFO L225 Difference]: With dead ends: 332 [2023-11-23 07:11:32,158 INFO L226 Difference]: Without dead ends: 185 [2023-11-23 07:11:32,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:32,159 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 4 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:32,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 443 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:11:32,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-23 07:11:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2023-11-23 07:11:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 115 states have (on average 1.3217391304347825) internal successors, (152), 117 states have internal predecessors, (152), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-23 07:11:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 256 transitions. [2023-11-23 07:11:32,178 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 256 transitions. Word has length 133 [2023-11-23 07:11:32,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:32,178 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 256 transitions. [2023-11-23 07:11:32,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:32,178 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 256 transitions. [2023-11-23 07:11:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 07:11:32,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:32,179 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 5, 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] [2023-11-23 07:11:32,210 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 07:11:32,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:32,396 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:32,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:32,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1333767752, now seen corresponding path program 1 times [2023-11-23 07:11:32,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:32,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197032931] [2023-11-23 07:11:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:32,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:11:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 07:11:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:11:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:11:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:11:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 07:11:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:11:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:11:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:11:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:11:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:11:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:11:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:11:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-23 07:11:33,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:33,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197032931] [2023-11-23 07:11:33,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197032931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:33,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804432528] [2023-11-23 07:11:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:33,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:33,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:33,691 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 07:11:33,725 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 07:11:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:34,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-23 07:11:34,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-23 07:11:34,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804432528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 14 [2023-11-23 07:11:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956894009] [2023-11-23 07:11:34,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:34,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:11:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:11:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:11:34,380 INFO L87 Difference]: Start difference. First operand 183 states and 256 transitions. Second operand has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:34,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:34,848 INFO L93 Difference]: Finished difference Result 353 states and 497 transitions. [2023-11-23 07:11:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:11:34,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 134 [2023-11-23 07:11:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:34,849 INFO L225 Difference]: With dead ends: 353 [2023-11-23 07:11:34,849 INFO L226 Difference]: Without dead ends: 183 [2023-11-23 07:11:34,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:34,850 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:34,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1484 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:11:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-23 07:11:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-23 07:11:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 117 states have internal predecessors, (151), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-23 07:11:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2023-11-23 07:11:34,858 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 134 [2023-11-23 07:11:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:34,859 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2023-11-23 07:11:34,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 07:11:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2023-11-23 07:11:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 07:11:34,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:34,860 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:34,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-23 07:11:35,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-23 07:11:35,077 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:35,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:35,077 INFO L85 PathProgramCache]: Analyzing trace with hash -278085043, now seen corresponding path program 1 times [2023-11-23 07:11:35,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:35,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715577399] [2023-11-23 07:11:35,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:11:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:11:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:11:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:11:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:11:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:11:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:11:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:11:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:11:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 07:11:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 07:11:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:11:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,772 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 07:11:35,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:35,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715577399] [2023-11-23 07:11:35,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715577399] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:35,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384690134] [2023-11-23 07:11:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:35,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:35,774 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 07:11:35,796 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 07:11:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:36,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 07:11:36,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-23 07:11:36,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384690134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:36,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:36,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-23 07:11:36,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921980838] [2023-11-23 07:11:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:36,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:11:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:36,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:11:36,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:11:36,473 INFO L87 Difference]: Start difference. First operand 183 states and 255 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:11:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:36,965 INFO L93 Difference]: Finished difference Result 328 states and 462 transitions. [2023-11-23 07:11:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:11:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2023-11-23 07:11:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:36,967 INFO L225 Difference]: With dead ends: 328 [2023-11-23 07:11:36,967 INFO L226 Difference]: Without dead ends: 183 [2023-11-23 07:11:36,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:11:36,968 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:36,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 664 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:11:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-23 07:11:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-23 07:11:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 117 states have internal predecessors, (150), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-23 07:11:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 254 transitions. [2023-11-23 07:11:36,975 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 254 transitions. Word has length 144 [2023-11-23 07:11:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:36,976 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 254 transitions. [2023-11-23 07:11:36,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:11:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 254 transitions. [2023-11-23 07:11:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-23 07:11:36,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:36,977 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 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 07:11:37,001 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 07:11:37,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 07:11:37,202 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:37,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2081915849, now seen corresponding path program 1 times [2023-11-23 07:11:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342495716] [2023-11-23 07:11:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:11:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:11:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:11:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 07:11:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:11:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:11:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:11:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:11:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 07:11:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 07:11:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 07:11:37,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:37,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342495716] [2023-11-23 07:11:37,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342495716] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:37,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022456205] [2023-11-23 07:11:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:37,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:37,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:37,897 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 07:11:37,914 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 07:11:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:38,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 3074 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:11:38,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 124 proven. 1 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2023-11-23 07:11:38,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:11:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 07:11:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022456205] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:11:38,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:11:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2023-11-23 07:11:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786343544] [2023-11-23 07:11:38,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:11:38,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 07:11:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 07:11:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:11:38,736 INFO L87 Difference]: Start difference. First operand 183 states and 254 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 10 states have internal predecessors, (82), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-23 07:11:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:40,081 INFO L93 Difference]: Finished difference Result 349 states and 490 transitions. [2023-11-23 07:11:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:11:40,081 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 10 states have internal predecessors, (82), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 146 [2023-11-23 07:11:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:40,082 INFO L225 Difference]: With dead ends: 349 [2023-11-23 07:11:40,083 INFO L226 Difference]: Without dead ends: 202 [2023-11-23 07:11:40,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2023-11-23 07:11:40,084 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 166 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:40,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 508 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 07:11:40,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-23 07:11:40,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 187. [2023-11-23 07:11:40,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 119 states have (on average 1.319327731092437) internal successors, (157), 121 states have internal predecessors, (157), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (53), 50 states have call predecessors, (53), 50 states have call successors, (53) [2023-11-23 07:11:40,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 261 transitions. [2023-11-23 07:11:40,095 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 261 transitions. Word has length 146 [2023-11-23 07:11:40,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:40,096 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 261 transitions. [2023-11-23 07:11:40,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 10 states have internal predecessors, (82), 2 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-11-23 07:11:40,096 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 261 transitions. [2023-11-23 07:11:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 07:11:40,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:40,098 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:40,126 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 07:11:40,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 07:11:40,327 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:40,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1116372098, now seen corresponding path program 2 times [2023-11-23 07:11:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118943961] [2023-11-23 07:11:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:11:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:11:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:11:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:11:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 07:11:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:11:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 07:11:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 07:11:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:11:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:11:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:11:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 07:11:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 07:11:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:41,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118943961] [2023-11-23 07:11:41,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118943961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:41,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461346819] [2023-11-23 07:11:41,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:11:41,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:41,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:41,458 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 07:11:41,484 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 07:11:42,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:11:42,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:11:42,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-23 07:11:42,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-23 07:11:42,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:42,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461346819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:42,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:42,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 19 [2023-11-23 07:11:42,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418322580] [2023-11-23 07:11:42,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:42,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:11:42,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:42,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:11:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-11-23 07:11:42,703 INFO L87 Difference]: Start difference. First operand 187 states and 261 transitions. Second operand has 11 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 07:11:43,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:43,321 INFO L93 Difference]: Finished difference Result 366 states and 516 transitions. [2023-11-23 07:11:43,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:11:43,322 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) Word has length 149 [2023-11-23 07:11:43,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:43,323 INFO L225 Difference]: With dead ends: 366 [2023-11-23 07:11:43,323 INFO L226 Difference]: Without dead ends: 195 [2023-11-23 07:11:43,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2023-11-23 07:11:43,324 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 68 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:43,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1105 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:11:43,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-23 07:11:43,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2023-11-23 07:11:43,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 125 states have internal predecessors, (161), 52 states have call successors, (52), 16 states have call predecessors, (52), 17 states have return successors, (62), 51 states have call predecessors, (62), 50 states have call successors, (62) [2023-11-23 07:11:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 275 transitions. [2023-11-23 07:11:43,338 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 275 transitions. Word has length 149 [2023-11-23 07:11:43,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:43,339 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 275 transitions. [2023-11-23 07:11:43,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 4 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-23 07:11:43,340 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 275 transitions. [2023-11-23 07:11:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-23 07:11:43,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:43,341 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:43,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:43,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:11:43,552 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:43,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:43,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1811241014, now seen corresponding path program 1 times [2023-11-23 07:11:43,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:43,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703867684] [2023-11-23 07:11:43,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:43,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:11:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 07:11:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 07:11:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:11:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:11:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:11:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 07:11:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:11:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:11:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:11:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:11:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 07:11:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 07:11:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-23 07:11:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 07:11:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,667 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2023-11-23 07:11:44,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703867684] [2023-11-23 07:11:44,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703867684] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482669630] [2023-11-23 07:11:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:44,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:44,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:44,684 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:44,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:11:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:45,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 3488 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-23 07:11:45,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:45,554 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 07:11:45,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 07:11:45,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:11:45,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2023-11-23 07:11:46,355 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2023-11-23 07:11:46,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 07:11:46,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:11:46,403 INFO L349 Elim1Store]: treesize reduction 92, result has 22.7 percent of original size [2023-11-23 07:11:46,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 34 treesize of output 39 [2023-11-23 07:11:46,445 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2023-11-23 07:11:46,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 07:11:46,595 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-23 07:11:46,595 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 7 [2023-11-23 07:11:48,754 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2023-11-23 07:11:48,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 07:11:49,560 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2023-11-23 07:11:49,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2023-11-23 07:11:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 109 proven. 13 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-23 07:11:49,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:11:49,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482669630] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:49,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:11:49,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 21] total 29 [2023-11-23 07:11:49,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146001704] [2023-11-23 07:11:49,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:11:49,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 07:11:49,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:49,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 07:11:49,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=781, Unknown=1, NotChecked=0, Total=870 [2023-11-23 07:11:49,906 INFO L87 Difference]: Start difference. First operand 193 states and 275 transitions. Second operand has 29 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 10 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (46), 9 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-23 07:11:52,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:11:55,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:11:59,189 WARN L539 Checker$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 07:12:03,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:05,443 WARN L539 Checker$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 07:12:07,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:26,634 WARN L539 Checker$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 07:12:28,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:31,274 WARN L539 Checker$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 07:12:33,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:35,707 WARN L539 Checker$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 07:12:37,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:39,949 WARN L539 Checker$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 07:12:42,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:44,364 WARN L539 Checker$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 07:12:46,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:48,672 WARN L539 Checker$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 07:12:50,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:52,759 WARN L539 Checker$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 07:12:55,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:57,017 WARN L539 Checker$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 07:12:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:12:59,425 INFO L93 Difference]: Finished difference Result 452 states and 624 transitions. [2023-11-23 07:12:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-23 07:12:59,426 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 10 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (46), 9 states have call predecessors, (46), 10 states have call successors, (46) Word has length 153 [2023-11-23 07:12:59,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:12:59,427 INFO L225 Difference]: With dead ends: 452 [2023-11-23 07:12:59,427 INFO L226 Difference]: Without dead ends: 279 [2023-11-23 07:12:59,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 177 SyntacticMatches, 25 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=538, Invalid=4290, Unknown=2, NotChecked=0, Total=4830 [2023-11-23 07:12:59,430 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 547 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 220 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:12:59,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1594 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [220 Valid, 3688 Invalid, 20 Unknown, 0 Unchecked, 62.5s Time] [2023-11-23 07:12:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-11-23 07:12:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 249. [2023-11-23 07:12:59,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 168 states have (on average 1.2738095238095237) internal successors, (214), 171 states have internal predecessors, (214), 54 states have call successors, (54), 24 states have call predecessors, (54), 26 states have return successors, (60), 53 states have call predecessors, (60), 52 states have call successors, (60) [2023-11-23 07:12:59,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 328 transitions. [2023-11-23 07:12:59,444 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 328 transitions. Word has length 153 [2023-11-23 07:12:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:12:59,445 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 328 transitions. [2023-11-23 07:12:59,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.592592592592593) internal successors, (124), 26 states have internal predecessors, (124), 10 states have call successors, (49), 9 states have call predecessors, (49), 9 states have return successors, (46), 9 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-23 07:12:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 328 transitions. [2023-11-23 07:12:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 07:12:59,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:12:59,446 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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 07:12:59,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:12:59,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:12:59,664 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:12:59,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:12:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash -191448473, now seen corresponding path program 2 times [2023-11-23 07:12:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:12:59,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73188153] [2023-11-23 07:12:59,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:12:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:13:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:13:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:13:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:13:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-23 07:13:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 07:13:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 07:13:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-23 07:13:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:00,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:13:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:13:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:13:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 07:13:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:13:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:13:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:13:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:13:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:13:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-23 07:13:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 07:13:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-23 07:13:01,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:13:01,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73188153] [2023-11-23 07:13:01,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73188153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:13:01,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39158666] [2023-11-23 07:13:01,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:13:01,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:13:01,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:13:01,629 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:13:01,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:13:02,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:13:02,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:13:02,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 3658 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:13:02,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:13:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-23 07:13:03,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:13:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39158666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:13:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:13:03,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-11-23 07:13:03,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627389937] [2023-11-23 07:13:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:13:03,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:13:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:13:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:13:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:13:03,155 INFO L87 Difference]: Start difference. First operand 249 states and 328 transitions. Second operand has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:13:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:13:04,425 INFO L93 Difference]: Finished difference Result 484 states and 645 transitions. [2023-11-23 07:13:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:13:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 166 [2023-11-23 07:13:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:13:04,427 INFO L225 Difference]: With dead ends: 484 [2023-11-23 07:13:04,427 INFO L226 Difference]: Without dead ends: 261 [2023-11-23 07:13:04,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2023-11-23 07:13:04,428 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 13 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:13:04,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1663 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:13:04,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-11-23 07:13:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 250. [2023-11-23 07:13:04,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 169 states have (on average 1.272189349112426) internal successors, (215), 172 states have internal predecessors, (215), 54 states have call successors, (54), 24 states have call predecessors, (54), 26 states have return successors, (60), 53 states have call predecessors, (60), 52 states have call successors, (60) [2023-11-23 07:13:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 329 transitions. [2023-11-23 07:13:04,448 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 329 transitions. Word has length 166 [2023-11-23 07:13:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:13:04,449 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 329 transitions. [2023-11-23 07:13:04,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-23 07:13:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 329 transitions. [2023-11-23 07:13:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 07:13:04,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:13:04,450 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:13:04,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 07:13:04,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:13:04,673 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:13:04,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:13:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash 22963586, now seen corresponding path program 1 times [2023-11-23 07:13:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:13:04,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567374839] [2023-11-23 07:13:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:13:04,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:13:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:13:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:13:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:13:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:13:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:13:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:13:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:13:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:13:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:13:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:13:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:13:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:13:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:13:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:13:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 07:13:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 07:13:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-23 07:13:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-23 07:13:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:06,412 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-23 07:13:06,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:13:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567374839] [2023-11-23 07:13:06,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567374839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:13:06,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008051343] [2023-11-23 07:13:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:13:06,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:13:06,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:13:06,415 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:13:06,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:13:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:07,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-23 07:13:07,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:13:07,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:13:12,532 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 115 proven. 25 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-23 07:13:12,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:13:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-11-23 07:13:14,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008051343] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:13:14,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:13:14,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 13] total 35 [2023-11-23 07:13:14,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482245715] [2023-11-23 07:13:14,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:13:14,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-23 07:13:14,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:13:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-23 07:13:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1086, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 07:13:14,012 INFO L87 Difference]: Start difference. First operand 250 states and 329 transitions. Second operand has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 31 states have internal predecessors, (168), 13 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (57), 11 states have call predecessors, (57), 13 states have call successors, (57) [2023-11-23 07:13:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:13:36,759 INFO L93 Difference]: Finished difference Result 513 states and 698 transitions. [2023-11-23 07:13:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 07:13:36,760 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 31 states have internal predecessors, (168), 13 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (57), 11 states have call predecessors, (57), 13 states have call successors, (57) Word has length 168 [2023-11-23 07:13:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:13:36,762 INFO L225 Difference]: With dead ends: 513 [2023-11-23 07:13:36,762 INFO L226 Difference]: Without dead ends: 286 [2023-11-23 07:13:36,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 334 SyntacticMatches, 24 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=235, Invalid=2417, Unknown=0, NotChecked=0, Total=2652 [2023-11-23 07:13:36,763 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 221 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 4226 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:13:36,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 2791 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [117 Valid, 4226 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2023-11-23 07:13:36,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-23 07:13:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 251. [2023-11-23 07:13:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 170 states have (on average 1.2529411764705882) internal successors, (213), 173 states have internal predecessors, (213), 54 states have call successors, (54), 24 states have call predecessors, (54), 26 states have return successors, (60), 53 states have call predecessors, (60), 52 states have call successors, (60) [2023-11-23 07:13:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 327 transitions. [2023-11-23 07:13:36,779 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 327 transitions. Word has length 168 [2023-11-23 07:13:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:13:36,779 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 327 transitions. [2023-11-23 07:13:36,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.090909090909091) internal successors, (168), 31 states have internal predecessors, (168), 13 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (57), 11 states have call predecessors, (57), 13 states have call successors, (57) [2023-11-23 07:13:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 327 transitions. [2023-11-23 07:13:36,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 07:13:36,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:13:36,781 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:13:36,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:13:36,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:13:36,993 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:13:36,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:13:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash -259168279, now seen corresponding path program 1 times [2023-11-23 07:13:36,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:13:36,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003992217] [2023-11-23 07:13:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:13:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:13:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:13:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 07:13:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:13:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:13:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:13:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 07:13:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:13:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:13:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:13:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:13:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:13:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 07:13:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:13:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:13:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 07:13:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:13:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 07:13:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 07:13:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-23 07:13:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-11-23 07:13:39,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:13:39,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003992217] [2023-11-23 07:13:39,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003992217] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:13:39,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147324867] [2023-11-23 07:13:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:13:39,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:13:39,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:13:39,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:13:39,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:13:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:13:40,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 3802 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-23 07:13:40,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:13:40,583 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 13 treesize of output 9 [2023-11-23 07:13:41,831 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-23 07:13:41,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-11-23 07:13:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 165 proven. 20 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-23 07:13:46,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:13:47,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2023-11-23 07:13:48,607 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-23 07:13:48,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 25 [2023-11-23 07:13:48,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2023-11-23 07:13:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 9 proven. 46 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2023-11-23 07:13:48,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147324867] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:13:48,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:13:48,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 20, 17] total 38 [2023-11-23 07:13:48,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919544746] [2023-11-23 07:13:48,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:13:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-23 07:13:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:13:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-23 07:13:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1276, Unknown=0, NotChecked=0, Total=1406 [2023-11-23 07:13:48,870 INFO L87 Difference]: Start difference. First operand 251 states and 327 transitions. Second operand has 38 states, 36 states have (on average 4.555555555555555) internal successors, (164), 34 states have internal predecessors, (164), 8 states have call successors, (60), 7 states have call predecessors, (60), 8 states have return successors, (53), 6 states have call predecessors, (53), 8 states have call successors, (53) [2023-11-23 07:13:52,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:56,085 WARN L539 Checker$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 07:13:59,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:05,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:22,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:24,458 WARN L539 Checker$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 07:14:26,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:28,814 WARN L539 Checker$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 07:14:30,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:33,210 WARN L539 Checker$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 07:14:35,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:37,604 WARN L539 Checker$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 07:14:39,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:41,928 WARN L539 Checker$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 07:14:43,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:45,948 WARN L539 Checker$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 07:14:48,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:53,859 WARN L539 Checker$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 07:14:56,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:14:58,257 WARN L539 Checker$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 07:15:00,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:02,435 WARN L539 Checker$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 07:15:05,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:07,577 WARN L539 Checker$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 07:15:09,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:12,134 WARN L539 Checker$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 07:15:14,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:16,648 WARN L539 Checker$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 07:15:18,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:20,939 WARN L539 Checker$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 07:15:23,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:25,555 WARN L539 Checker$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 07:15:27,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:15:30,151 WARN L539 Checker$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] Killed by 15