./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_cat_harness.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_buf_cat_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19d158b21d92d4655e874a970c31120f676a50dd3149e2b62ecc8e8738919e4f --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 06:48:24,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 06:48:24,531 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 06:48:24,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 06:48:24,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 06:48:24,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 06:48:24,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 06:48:24,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 06:48:24,562 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 06:48:24,565 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 06:48:24,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 06:48:24,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 06:48:24,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 06:48:24,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 06:48:24,567 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 06:48:24,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 06:48:24,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 06:48:24,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 06:48:24,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 06:48:24,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 06:48:24,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 06:48:24,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 06:48:24,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 06:48:24,570 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 06:48:24,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 06:48:24,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 06:48:24,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 06:48:24,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 06:48:24,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:48:24,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 06:48:24,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 06:48:24,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 06:48:24,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 06:48:24,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 06:48:24,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 06:48:24,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 06:48:24,574 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 06:48:24,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 06:48:24,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 06:48:24,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19d158b21d92d4655e874a970c31120f676a50dd3149e2b62ecc8e8738919e4f Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 06:48:24,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 06:48:24,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 06:48:24,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 06:48:24,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 06:48:24,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 06:48:24,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_cat_harness.i [2023-11-23 06:48:25,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 06:48:26,357 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 06:48:26,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_cat_harness.i [2023-11-23 06:48:26,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3810ef98a/a91e0a459c1043a08154007c562528bd/FLAGb8db5914a [2023-11-23 06:48:26,399 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3810ef98a/a91e0a459c1043a08154007c562528bd [2023-11-23 06:48:26,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 06:48:26,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 06:48:26,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 06:48:26,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 06:48:26,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 06:48:26,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:26" (1/1) ... [2023-11-23 06:48:26,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e64228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:26, skipping insertion in model container [2023-11-23 06:48:26,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:48:26" (1/1) ... [2023-11-23 06:48:26,489 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 06:48:26,800 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_buf_cat_harness.i[4490,4503] [2023-11-23 06:48:26,806 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_buf_cat_harness.i[4550,4563] [2023-11-23 06:48:27,335 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,339 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,346 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,348 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,351 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,352 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,614 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:48:27,615 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:48:27,616 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:48:27,619 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:48:27,623 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:48:27,623 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:48:27,624 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:48:27,624 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:48:27,626 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:48:27,629 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:48:27,958 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:27,959 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:48:28,057 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 06:48:28,077 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_buf_cat_harness.i[4490,4503] [2023-11-23 06:48:28,077 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_buf_cat_harness.i[4550,4563] [2023-11-23 06:48:28,133 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,133 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,133 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,134 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,134 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,137 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,138 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,167 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:48:28,167 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:48:28,168 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:48:28,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:48:28,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:48:28,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:48:28,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:48:28,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:48:28,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:48:28,171 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:48:28,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-23 06:48:28,242 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,243 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:48:28,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-23 06:48:28,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:48:28,444 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,444 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,444 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,445 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,445 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,445 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,445 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,445 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,446 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,446 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,446 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,446 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,447 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,447 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,447 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,447 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,447 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,448 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:48:28,454 INFO L206 MainTranslator]: Completed translation [2023-11-23 06:48:28,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28 WrapperNode [2023-11-23 06:48:28,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 06:48:28,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 06:48:28,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 06:48:28,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 06:48:28,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,591 INFO L138 Inliner]: procedures = 690, calls = 2731, calls flagged for inlining = 59, calls inlined = 8, statements flattened = 1083 [2023-11-23 06:48:28,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 06:48:28,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 06:48:28,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 06:48:28,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 06:48:28,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,717 INFO L188 MemorySlicer]: Split 627 memory accesses to 11 slices as follows [2, 0, 256, 0, 87, 17, 244, 6, 8, 4, 3]. 41 percent of accesses are in the largest equivalence class. The 536 initializations are split as follows [2, 0, 256, 0, 28, 2, 241, 0, 4, 0, 3]. The 11 writes are split as follows [0, 0, 0, 0, 3, 2, 1, 2, 0, 3, 0]. [2023-11-23 06:48:28,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 06:48:28,834 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 06:48:28,834 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 06:48:28,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 06:48:28,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (1/1) ... [2023-11-23 06:48:28,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:48:28,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:28,865 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 06:48:28,893 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 06:48:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 06:48:28,933 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 06:48:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 06:48:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 06:48:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 06:48:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 06:48:28,934 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 06:48:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2023-11-23 06:48:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2023-11-23 06:48:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2023-11-23 06:48:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2023-11-23 06:48:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#9 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#10 [2023-11-23 06:48:28,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 06:48:28,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 06:48:28,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 06:48:28,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 06:48:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-23 06:48:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-23 06:48:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 06:48:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 06:48:28,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 06:48:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 06:48:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 06:48:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 06:48:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 06:48:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-23 06:48:28,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-23 06:48:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 06:48:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 06:48:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-23 06:48:28,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-23 06:48:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 06:48:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 06:48:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 06:48:28,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 06:48:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 06:48:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 06:48:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 06:48:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 06:48:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 06:48:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 06:48:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 06:48:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 06:48:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 06:48:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 06:48:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 06:48:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 06:48:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 06:48:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 06:48:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 06:48:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 06:48:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 06:48:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 06:48:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 06:48:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 06:48:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 06:48:28,958 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 06:48:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 06:48:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 06:48:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 06:48:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 06:48:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 06:48:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 06:48:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 06:48:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 06:48:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 06:48:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 06:48:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 06:48:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-23 06:48:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 06:48:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2023-11-23 06:48:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#9 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#10 [2023-11-23 06:48:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-23 06:48:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 06:48:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 06:48:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 06:48:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 06:48:29,317 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 06:48:29,319 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 06:48:30,672 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 06:48:30,752 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 06:48:30,752 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 06:48:30,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:30 BoogieIcfgContainer [2023-11-23 06:48:30,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 06:48:30,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 06:48:30,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 06:48:30,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 06:48:30,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:48:26" (1/3) ... [2023-11-23 06:48:30,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cd0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:30, skipping insertion in model container [2023-11-23 06:48:30,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:48:28" (2/3) ... [2023-11-23 06:48:30,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cd0ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:48:30, skipping insertion in model container [2023-11-23 06:48:30,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:48:30" (3/3) ... [2023-11-23 06:48:30,760 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_cat_harness.i [2023-11-23 06:48:30,773 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 06:48:30,773 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 06:48:30,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 06:48:30,816 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;@439a87ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 06:48:30,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 06:48:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 107 states have internal predecessors, (134), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-23 06:48:30,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-23 06:48:30,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:30,835 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:30,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:30,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1827129419, now seen corresponding path program 1 times [2023-11-23 06:48:30,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:30,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957292373] [2023-11-23 06:48:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 06:48:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 06:48:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 06:48:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 06:48:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 06:48:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 06:48:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 06:48:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 06:48:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 06:48:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 06:48:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:48:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 06:48:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 06:48:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 06:48:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-23 06:48:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-23 06:48:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2023-11-23 06:48:32,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:32,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957292373] [2023-11-23 06:48:32,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957292373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:32,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:48:32,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 06:48:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137885480] [2023-11-23 06:48:32,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:32,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:48:32,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:48:32,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:48:32,450 INFO L87 Difference]: Start difference. First operand has 194 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 107 states have internal predecessors, (134), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 06:48:34,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:34,722 INFO L93 Difference]: Finished difference Result 390 states and 607 transitions. [2023-11-23 06:48:34,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:48:34,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 190 [2023-11-23 06:48:34,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:34,733 INFO L225 Difference]: With dead ends: 390 [2023-11-23 06:48:34,734 INFO L226 Difference]: Without dead ends: 197 [2023-11-23 06:48:34,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:48:34,740 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 171 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:34,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 243 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 06:48:34,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-23 06:48:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2023-11-23 06:48:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 105 states have (on average 1.2380952380952381) internal successors, (130), 106 states have internal predecessors, (130), 72 states have call successors, (72), 14 states have call predecessors, (72), 14 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-23 06:48:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 273 transitions. [2023-11-23 06:48:34,788 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 273 transitions. Word has length 190 [2023-11-23 06:48:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:34,789 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 273 transitions. [2023-11-23 06:48:34,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-23 06:48:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 273 transitions. [2023-11-23 06:48:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-23 06:48:34,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:34,792 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:34,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 06:48:34,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:34,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:34,793 INFO L85 PathProgramCache]: Analyzing trace with hash 825181308, now seen corresponding path program 1 times [2023-11-23 06:48:34,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:34,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884196574] [2023-11-23 06:48:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 06:48:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-23 06:48:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 06:48:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 06:48:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 06:48:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 06:48:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 06:48:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 06:48:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 06:48:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 06:48:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:48:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 06:48:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 06:48:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 06:48:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-23 06:48:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-23 06:48:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2023-11-23 06:48:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884196574] [2023-11-23 06:48:36,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884196574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:36,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217446018] [2023-11-23 06:48:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:36,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:36,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:36,141 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 06:48:36,154 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 06:48:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:36,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 3926 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 06:48:36,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2023-11-23 06:48:37,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217446018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:37,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:37,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 06:48:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443971472] [2023-11-23 06:48:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:48:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:48:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:37,049 INFO L87 Difference]: Start difference. First operand 192 states and 273 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:38,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:38,157 INFO L93 Difference]: Finished difference Result 380 states and 552 transitions. [2023-11-23 06:48:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:48:38,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 190 [2023-11-23 06:48:38,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:38,160 INFO L225 Difference]: With dead ends: 380 [2023-11-23 06:48:38,160 INFO L226 Difference]: Without dead ends: 194 [2023-11-23 06:48:38,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:38,162 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 62 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:38,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 828 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 06:48:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-23 06:48:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-23 06:48:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 72 states have call successors, (72), 14 states have call predecessors, (72), 15 states have return successors, (84), 71 states have call predecessors, (84), 71 states have call successors, (84) [2023-11-23 06:48:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 287 transitions. [2023-11-23 06:48:38,183 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 287 transitions. Word has length 190 [2023-11-23 06:48:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:38,183 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 287 transitions. [2023-11-23 06:48:38,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:38,184 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 287 transitions. [2023-11-23 06:48:38,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-23 06:48:38,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:38,186 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:38,223 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 06:48:38,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:38,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:38,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1327798279, now seen corresponding path program 1 times [2023-11-23 06:48:38,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:38,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918193852] [2023-11-23 06:48:38,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:38,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-23 06:48:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 06:48:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 06:48:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 06:48:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 06:48:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 06:48:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 06:48:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 06:48:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-23 06:48:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-23 06:48:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:39,670 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2023-11-23 06:48:39,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918193852] [2023-11-23 06:48:39,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918193852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:39,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593296964] [2023-11-23 06:48:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:39,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:39,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:39,689 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 06:48:39,720 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 06:48:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:40,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 3943 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 06:48:40,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-23 06:48:40,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:40,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593296964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:40,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:40,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 06:48:40,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047905094] [2023-11-23 06:48:40,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:40,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:48:40,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:48:40,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:40,528 INFO L87 Difference]: Start difference. First operand 194 states and 287 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:41,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:41,186 INFO L93 Difference]: Finished difference Result 375 states and 551 transitions. [2023-11-23 06:48:41,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:48:41,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 196 [2023-11-23 06:48:41,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:41,189 INFO L225 Difference]: With dead ends: 375 [2023-11-23 06:48:41,189 INFO L226 Difference]: Without dead ends: 194 [2023-11-23 06:48:41,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:41,190 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 60 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:41,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 624 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 06:48:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-23 06:48:41,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-23 06:48:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 72 states have call successors, (72), 14 states have call predecessors, (72), 15 states have return successors, (82), 71 states have call predecessors, (82), 71 states have call successors, (82) [2023-11-23 06:48:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 285 transitions. [2023-11-23 06:48:41,207 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 285 transitions. Word has length 196 [2023-11-23 06:48:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:41,207 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 285 transitions. [2023-11-23 06:48:41,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 285 transitions. [2023-11-23 06:48:41,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-11-23 06:48:41,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:41,210 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:48:41,230 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 06:48:41,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 06:48:41,426 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:41,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2143817966, now seen corresponding path program 2 times [2023-11-23 06:48:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:41,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508456588] [2023-11-23 06:48:41,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:41,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:41,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:41,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:48:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:48:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:48:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 06:48:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:48:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 06:48:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 06:48:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:48:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-23 06:48:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-23 06:48:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2023-11-23 06:48:42,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:42,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508456588] [2023-11-23 06:48:42,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508456588] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:42,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577743605] [2023-11-23 06:48:42,683 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:48:42,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:42,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:42,684 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 06:48:42,707 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 06:48:43,697 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 06:48:43,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:48:43,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 3960 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 06:48:43,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:43,815 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2023-11-23 06:48:43,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:43,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577743605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:43,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:43,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-23 06:48:43,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275624171] [2023-11-23 06:48:43,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:43,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:48:43,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:43,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:48:43,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 06:48:43,817 INFO L87 Difference]: Start difference. First operand 194 states and 285 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 06:48:44,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:44,646 INFO L93 Difference]: Finished difference Result 345 states and 508 transitions. [2023-11-23 06:48:44,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:48:44,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) Word has length 202 [2023-11-23 06:48:44,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:44,649 INFO L225 Difference]: With dead ends: 345 [2023-11-23 06:48:44,649 INFO L226 Difference]: Without dead ends: 194 [2023-11-23 06:48:44,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-23 06:48:44,650 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 75 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:44,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1059 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 06:48:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-23 06:48:44,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-11-23 06:48:44,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 108 states have internal predecessors, (131), 72 states have call successors, (72), 14 states have call predecessors, (72), 15 states have return successors, (77), 71 states have call predecessors, (77), 71 states have call successors, (77) [2023-11-23 06:48:44,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 280 transitions. [2023-11-23 06:48:44,666 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 280 transitions. Word has length 202 [2023-11-23 06:48:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:44,667 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 280 transitions. [2023-11-23 06:48:44,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 4 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-23 06:48:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 280 transitions. [2023-11-23 06:48:44,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-23 06:48:44,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:44,670 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:44,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 06:48:44,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:44,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:44,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1477664455, now seen corresponding path program 3 times [2023-11-23 06:48:44,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:44,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647749747] [2023-11-23 06:48:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:48:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:48:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:48:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 06:48:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:48:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 06:48:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:48:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:48:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-23 06:48:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-23 06:48:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2023-11-23 06:48:46,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647749747] [2023-11-23 06:48:46,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647749747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:46,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413762411] [2023-11-23 06:48:46,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 06:48:46,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:46,058 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 06:48:46,101 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 06:48:46,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-23 06:48:46,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:48:46,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 2370 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 06:48:46,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2023-11-23 06:48:46,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:46,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413762411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:46,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:46,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2023-11-23 06:48:46,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499371174] [2023-11-23 06:48:46,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:46,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 06:48:46,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:46,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 06:48:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-11-23 06:48:46,782 INFO L87 Difference]: Start difference. First operand 194 states and 280 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-23 06:48:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:47,948 INFO L93 Difference]: Finished difference Result 205 states and 305 transitions. [2023-11-23 06:48:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 06:48:47,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 220 [2023-11-23 06:48:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:47,950 INFO L225 Difference]: With dead ends: 205 [2023-11-23 06:48:47,950 INFO L226 Difference]: Without dead ends: 203 [2023-11-23 06:48:47,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-23 06:48:47,951 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 23 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:47,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1803 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 06:48:47,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-23 06:48:47,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2023-11-23 06:48:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 111 states have (on average 1.2252252252252251) internal successors, (136), 114 states have internal predecessors, (136), 73 states have call successors, (73), 15 states have call predecessors, (73), 17 states have return successors, (93), 72 states have call predecessors, (93), 72 states have call successors, (93) [2023-11-23 06:48:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2023-11-23 06:48:47,967 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 220 [2023-11-23 06:48:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:47,967 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2023-11-23 06:48:47,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2023-11-23 06:48:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2023-11-23 06:48:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-23 06:48:47,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:47,969 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 06:48:48,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 06:48:48,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:48,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:48,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:48,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1104529841, now seen corresponding path program 1 times [2023-11-23 06:48:48,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:48,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743324811] [2023-11-23 06:48:48,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:48,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:48:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:48,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:48:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:48:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 06:48:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:48:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 06:48:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:48:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:48:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-23 06:48:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-23 06:48:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-23 06:48:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 06:48:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2023-11-23 06:48:49,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:49,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743324811] [2023-11-23 06:48:49,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743324811] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:49,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706192746] [2023-11-23 06:48:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:49,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:49,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:49,355 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 06:48:49,377 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 06:48:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:50,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 4084 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 06:48:50,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:50,582 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2023-11-23 06:48:50,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:50,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706192746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:50,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:50,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-23 06:48:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235742362] [2023-11-23 06:48:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:50,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:48:50,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:48:50,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-23 06:48:50,585 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:48:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:51,433 INFO L93 Difference]: Finished difference Result 344 states and 516 transitions. [2023-11-23 06:48:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:48:51,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 224 [2023-11-23 06:48:51,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:51,436 INFO L225 Difference]: With dead ends: 344 [2023-11-23 06:48:51,436 INFO L226 Difference]: Without dead ends: 204 [2023-11-23 06:48:51,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-11-23 06:48:51,437 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 188 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:51,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 732 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 06:48:51,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-23 06:48:51,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-23 06:48:51,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 116 states have internal predecessors, (137), 73 states have call successors, (73), 15 states have call predecessors, (73), 18 states have return successors, (96), 72 states have call predecessors, (96), 72 states have call successors, (96) [2023-11-23 06:48:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 306 transitions. [2023-11-23 06:48:51,452 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 306 transitions. Word has length 224 [2023-11-23 06:48:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:51,453 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 306 transitions. [2023-11-23 06:48:51,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:48:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 306 transitions. [2023-11-23 06:48:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-23 06:48:51,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:51,455 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:51,496 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 06:48:51,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:51,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:51,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:51,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2000454655, now seen corresponding path program 1 times [2023-11-23 06:48:51,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:51,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979712713] [2023-11-23 06:48:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:51,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:48:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:48:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:48:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 06:48:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:48:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 06:48:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 06:48:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:48:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:48:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-23 06:48:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-23 06:48:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2023-11-23 06:48:52,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:52,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979712713] [2023-11-23 06:48:52,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979712713] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:48:52,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094260535] [2023-11-23 06:48:52,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:52,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:52,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:48:52,880 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 06:48:52,903 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 06:48:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:53,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 4023 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 06:48:53,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:48:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-11-23 06:48:53,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:48:53,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094260535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:53,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:48:53,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 06:48:53,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348856730] [2023-11-23 06:48:53,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:53,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:48:53,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:53,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:48:53,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:53,754 INFO L87 Difference]: Start difference. First operand 204 states and 306 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:54,362 INFO L93 Difference]: Finished difference Result 386 states and 573 transitions. [2023-11-23 06:48:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:48:54,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 224 [2023-11-23 06:48:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:54,364 INFO L225 Difference]: With dead ends: 386 [2023-11-23 06:48:54,364 INFO L226 Difference]: Without dead ends: 204 [2023-11-23 06:48:54,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:48:54,366 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 58 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:54,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 638 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 06:48:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-23 06:48:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-23 06:48:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 112 states have (on average 1.2232142857142858) internal successors, (137), 116 states have internal predecessors, (137), 73 states have call successors, (73), 15 states have call predecessors, (73), 18 states have return successors, (94), 72 states have call predecessors, (94), 72 states have call successors, (94) [2023-11-23 06:48:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 304 transitions. [2023-11-23 06:48:54,381 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 304 transitions. Word has length 224 [2023-11-23 06:48:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:54,381 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 304 transitions. [2023-11-23 06:48:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-23 06:48:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 304 transitions. [2023-11-23 06:48:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-23 06:48:54,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:54,383 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:54,406 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 06:48:54,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:48:54,597 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:54,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1905077322, now seen corresponding path program 1 times [2023-11-23 06:48:54,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:54,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314662357] [2023-11-23 06:48:54,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:54,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:48:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:48:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:48:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:48:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:48:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:48:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:48:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:48:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:48:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:48:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:48:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:48:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:48:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:48:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:48:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:48:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:48:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:48:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:48:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:48:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:48:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:48:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:48:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:48:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:48:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-23 06:48:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2023-11-23 06:48:56,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:48:56,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314662357] [2023-11-23 06:48:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314662357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:48:56,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:48:56,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 06:48:56,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537354858] [2023-11-23 06:48:56,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:48:56,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 06:48:56,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:48:56,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 06:48:56,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 06:48:56,263 INFO L87 Difference]: Start difference. First operand 204 states and 304 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 06:48:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:48:58,926 INFO L93 Difference]: Finished difference Result 328 states and 502 transitions. [2023-11-23 06:48:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 06:48:58,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 230 [2023-11-23 06:48:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:48:58,929 INFO L225 Difference]: With dead ends: 328 [2023-11-23 06:48:58,929 INFO L226 Difference]: Without dead ends: 250 [2023-11-23 06:48:58,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-23 06:48:58,930 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 370 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:48:58,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 417 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-23 06:48:58,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-23 06:48:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 205. [2023-11-23 06:48:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 117 states have internal predecessors, (138), 73 states have call successors, (73), 15 states have call predecessors, (73), 18 states have return successors, (94), 72 states have call predecessors, (94), 72 states have call successors, (94) [2023-11-23 06:48:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 305 transitions. [2023-11-23 06:48:59,034 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 305 transitions. Word has length 230 [2023-11-23 06:48:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:48:59,036 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 305 transitions. [2023-11-23 06:48:59,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 4 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-23 06:48:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 305 transitions. [2023-11-23 06:48:59,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-23 06:48:59,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:48:59,038 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:48:59,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 06:48:59,039 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:48:59,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:48:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash 707322647, now seen corresponding path program 1 times [2023-11-23 06:48:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:48:59,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420635353] [2023-11-23 06:48:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:48:59,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:48:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:48:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:00,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 06:49:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-23 06:49:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 06:49:00,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:00,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420635353] [2023-11-23 06:49:00,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420635353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:00,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:00,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 06:49:00,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21692906] [2023-11-23 06:49:00,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 06:49:00,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:00,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 06:49:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:49:00,733 INFO L87 Difference]: Start difference. First operand 205 states and 305 transitions. Second operand has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 06:49:05,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:05,400 INFO L93 Difference]: Finished difference Result 221 states and 329 transitions. [2023-11-23 06:49:05,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 06:49:05,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 232 [2023-11-23 06:49:05,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:05,402 INFO L225 Difference]: With dead ends: 221 [2023-11-23 06:49:05,402 INFO L226 Difference]: Without dead ends: 219 [2023-11-23 06:49:05,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 06:49:05,402 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 197 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:05,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 918 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 06:49:05,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-23 06:49:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 213. [2023-11-23 06:49:05,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 123 states have internal predecessors, (143), 74 states have call successors, (74), 16 states have call predecessors, (74), 20 states have return successors, (99), 73 states have call predecessors, (99), 73 states have call successors, (99) [2023-11-23 06:49:05,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 316 transitions. [2023-11-23 06:49:05,417 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 316 transitions. Word has length 232 [2023-11-23 06:49:05,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:05,417 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 316 transitions. [2023-11-23 06:49:05,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 06:49:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 316 transitions. [2023-11-23 06:49:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-23 06:49:05,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:05,419 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:05,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 06:49:05,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:05,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash -750292081, now seen corresponding path program 1 times [2023-11-23 06:49:05,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:05,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740219833] [2023-11-23 06:49:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:05,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 06:49:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-23 06:49:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2023-11-23 06:49:07,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:07,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740219833] [2023-11-23 06:49:07,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740219833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:07,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:07,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 06:49:07,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645024478] [2023-11-23 06:49:07,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:07,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 06:49:07,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:07,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 06:49:07,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 06:49:07,157 INFO L87 Difference]: Start difference. First operand 213 states and 316 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:11,661 INFO L93 Difference]: Finished difference Result 369 states and 551 transitions. [2023-11-23 06:49:11,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 06:49:11,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 236 [2023-11-23 06:49:11,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:11,677 INFO L225 Difference]: With dead ends: 369 [2023-11-23 06:49:11,677 INFO L226 Difference]: Without dead ends: 218 [2023-11-23 06:49:11,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-23 06:49:11,694 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 97 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:11,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 811 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-23 06:49:11,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-23 06:49:11,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2023-11-23 06:49:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 123 states have internal predecessors, (143), 74 states have call successors, (74), 16 states have call predecessors, (74), 20 states have return successors, (98), 73 states have call predecessors, (98), 73 states have call successors, (98) [2023-11-23 06:49:11,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2023-11-23 06:49:11,717 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 236 [2023-11-23 06:49:11,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:11,718 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2023-11-23 06:49:11,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2023-11-23 06:49:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-23 06:49:11,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:11,721 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:11,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 06:49:11,721 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:11,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:11,721 INFO L85 PathProgramCache]: Analyzing trace with hash -799797158, now seen corresponding path program 1 times [2023-11-23 06:49:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:11,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290944704] [2023-11-23 06:49:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:11,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-23 06:49:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-23 06:49:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2023-11-23 06:49:14,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:14,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290944704] [2023-11-23 06:49:14,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290944704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:14,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:14,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 06:49:14,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664500003] [2023-11-23 06:49:14,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:14,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 06:49:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:14,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 06:49:14,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 06:49:14,610 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:22,060 INFO L93 Difference]: Finished difference Result 387 states and 602 transitions. [2023-11-23 06:49:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 06:49:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 242 [2023-11-23 06:49:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:22,063 INFO L225 Difference]: With dead ends: 387 [2023-11-23 06:49:22,063 INFO L226 Difference]: Without dead ends: 237 [2023-11-23 06:49:22,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2023-11-23 06:49:22,064 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 196 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:22,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 1058 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-23 06:49:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-23 06:49:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 230. [2023-11-23 06:49:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 131 states have (on average 1.2213740458015268) internal successors, (160), 138 states have internal predecessors, (160), 76 states have call successors, (76), 16 states have call predecessors, (76), 22 states have return successors, (130), 75 states have call predecessors, (130), 75 states have call successors, (130) [2023-11-23 06:49:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 366 transitions. [2023-11-23 06:49:22,099 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 366 transitions. Word has length 242 [2023-11-23 06:49:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:22,100 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 366 transitions. [2023-11-23 06:49:22,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 11 states have internal predecessors, (59), 4 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 366 transitions. [2023-11-23 06:49:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-23 06:49:22,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:22,101 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:22,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 06:49:22,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:22,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1123430876, now seen corresponding path program 1 times [2023-11-23 06:49:22,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:22,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051175362] [2023-11-23 06:49:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-23 06:49:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-23 06:49:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2023-11-23 06:49:22,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:22,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051175362] [2023-11-23 06:49:22,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051175362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:22,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:22,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 06:49:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166386420] [2023-11-23 06:49:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:22,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 06:49:22,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 06:49:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 06:49:22,974 INFO L87 Difference]: Start difference. First operand 230 states and 366 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:49:25,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:25,635 INFO L93 Difference]: Finished difference Result 456 states and 727 transitions. [2023-11-23 06:49:25,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 06:49:25,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 242 [2023-11-23 06:49:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:25,640 INFO L225 Difference]: With dead ends: 456 [2023-11-23 06:49:25,640 INFO L226 Difference]: Without dead ends: 232 [2023-11-23 06:49:25,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 06:49:25,642 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 114 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:25,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 501 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 06:49:25,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-23 06:49:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2023-11-23 06:49:25,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 129 states have (on average 1.2170542635658914) internal successors, (157), 135 states have internal predecessors, (157), 76 states have call successors, (76), 16 states have call predecessors, (76), 21 states have return successors, (115), 75 states have call predecessors, (115), 75 states have call successors, (115) [2023-11-23 06:49:25,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 348 transitions. [2023-11-23 06:49:25,659 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 348 transitions. Word has length 242 [2023-11-23 06:49:25,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:25,659 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 348 transitions. [2023-11-23 06:49:25,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:49:25,659 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 348 transitions. [2023-11-23 06:49:25,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-23 06:49:25,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:25,664 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:25,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 06:49:25,665 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:25,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:25,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2014575268, now seen corresponding path program 1 times [2023-11-23 06:49:25,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:25,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240063450] [2023-11-23 06:49:25,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:25,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-23 06:49:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-23 06:49:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:27,490 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2023-11-23 06:49:27,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:27,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240063450] [2023-11-23 06:49:27,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240063450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:27,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:27,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 06:49:27,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187225710] [2023-11-23 06:49:27,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:27,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 06:49:27,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 06:49:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:49:27,494 INFO L87 Difference]: Start difference. First operand 227 states and 348 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:31,933 INFO L93 Difference]: Finished difference Result 494 states and 819 transitions. [2023-11-23 06:49:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 06:49:31,933 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 246 [2023-11-23 06:49:31,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:31,936 INFO L225 Difference]: With dead ends: 494 [2023-11-23 06:49:31,936 INFO L226 Difference]: Without dead ends: 273 [2023-11-23 06:49:31,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-11-23 06:49:31,937 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 158 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:31,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 905 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 06:49:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-23 06:49:31,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 235. [2023-11-23 06:49:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 137 states have (on average 1.218978102189781) internal successors, (167), 143 states have internal predecessors, (167), 76 states have call successors, (76), 16 states have call predecessors, (76), 21 states have return successors, (115), 75 states have call predecessors, (115), 75 states have call successors, (115) [2023-11-23 06:49:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 358 transitions. [2023-11-23 06:49:31,957 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 358 transitions. Word has length 246 [2023-11-23 06:49:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:31,957 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 358 transitions. [2023-11-23 06:49:31,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 7 states have internal predecessors, (65), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 358 transitions. [2023-11-23 06:49:31,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-11-23 06:49:31,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:31,959 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:31,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 06:49:31,959 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:31,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1505102178, now seen corresponding path program 1 times [2023-11-23 06:49:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:31,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318975627] [2023-11-23 06:49:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:33,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-23 06:49:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-23 06:49:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 06:49:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318975627] [2023-11-23 06:49:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318975627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:33,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 06:49:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673189380] [2023-11-23 06:49:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 06:49:33,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 06:49:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-23 06:49:33,458 INFO L87 Difference]: Start difference. First operand 235 states and 358 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:38,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:38,171 INFO L93 Difference]: Finished difference Result 422 states and 668 transitions. [2023-11-23 06:49:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 06:49:38,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 246 [2023-11-23 06:49:38,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:38,173 INFO L225 Difference]: With dead ends: 422 [2023-11-23 06:49:38,173 INFO L226 Difference]: Without dead ends: 248 [2023-11-23 06:49:38,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-23 06:49:38,175 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 189 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:38,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1030 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-23 06:49:38,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-23 06:49:38,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 239. [2023-11-23 06:49:38,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 140 states have (on average 1.2142857142857142) internal successors, (170), 147 states have internal predecessors, (170), 76 states have call successors, (76), 16 states have call predecessors, (76), 22 states have return successors, (129), 75 states have call predecessors, (129), 75 states have call successors, (129) [2023-11-23 06:49:38,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 375 transitions. [2023-11-23 06:49:38,195 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 375 transitions. Word has length 246 [2023-11-23 06:49:38,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:38,195 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 375 transitions. [2023-11-23 06:49:38,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (31), 5 states have call predecessors, (31), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:49:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 375 transitions. [2023-11-23 06:49:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-23 06:49:38,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:38,197 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:38,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 06:49:38,197 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:38,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:38,197 INFO L85 PathProgramCache]: Analyzing trace with hash 450423593, now seen corresponding path program 1 times [2023-11-23 06:49:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:38,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790863760] [2023-11-23 06:49:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:38,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:38,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-23 06:49:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-23 06:49:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-23 06:49:38,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:38,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790863760] [2023-11-23 06:49:38,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790863760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:38,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:49:38,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 06:49:38,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905452266] [2023-11-23 06:49:38,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:38,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 06:49:38,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:38,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 06:49:38,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 06:49:38,975 INFO L87 Difference]: Start difference. First operand 239 states and 375 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:49:42,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:49:42,159 INFO L93 Difference]: Finished difference Result 484 states and 786 transitions. [2023-11-23 06:49:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 06:49:42,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 248 [2023-11-23 06:49:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:49:42,161 INFO L225 Difference]: With dead ends: 484 [2023-11-23 06:49:42,161 INFO L226 Difference]: Without dead ends: 251 [2023-11-23 06:49:42,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 06:49:42,163 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 06:49:42,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 501 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 06:49:42,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-23 06:49:42,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 240. [2023-11-23 06:49:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 141 states have (on average 1.2127659574468086) internal successors, (171), 148 states have internal predecessors, (171), 76 states have call successors, (76), 16 states have call predecessors, (76), 22 states have return successors, (129), 75 states have call predecessors, (129), 75 states have call successors, (129) [2023-11-23 06:49:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 376 transitions. [2023-11-23 06:49:42,181 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 376 transitions. Word has length 248 [2023-11-23 06:49:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:49:42,181 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 376 transitions. [2023-11-23 06:49:42,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (31), 5 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-23 06:49:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 376 transitions. [2023-11-23 06:49:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-23 06:49:42,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:49:42,183 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:42,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 06:49:42,183 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:49:42,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:49:42,183 INFO L85 PathProgramCache]: Analyzing trace with hash -416214163, now seen corresponding path program 1 times [2023-11-23 06:49:42,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:49:42,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689518220] [2023-11-23 06:49:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:49:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:49:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:49:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:49:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:49:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:49:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:49:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:49:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:49:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:49:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:49:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:49:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:49:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:49:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 06:49:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 06:49:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:49:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:49:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 06:49:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-23 06:49:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 06:49:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:49:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:49:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:49:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:49:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-23 06:49:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-23 06:49:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-23 06:49:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-23 06:49:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2023-11-23 06:49:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:49:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689518220] [2023-11-23 06:49:44,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689518220] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:49:44,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466317449] [2023-11-23 06:49:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:49:44,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:49:44,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:49:44,789 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 06:49:44,791 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 06:49:45,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:49:45,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 4149 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 06:49:45,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:49:45,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:49:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-11-23 06:49:46,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:49:46,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466317449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:49:46,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:49:46,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 21 [2023-11-23 06:49:46,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260630699] [2023-11-23 06:49:46,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:49:46,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 06:49:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:49:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 06:49:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-23 06:49:46,008 INFO L87 Difference]: Start difference. First operand 240 states and 376 transitions. Second operand has 12 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-23 06:49:48,351 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 06:49:53,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:49:55,538 WARN L539 Checker$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 06:49:57,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:00,252 WARN L539 Checker$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 06:50:02,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:04,382 WARN L539 Checker$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 06:50:06,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:08,491 WARN L539 Checker$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 06:50:10,596 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 06:50:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:10,670 INFO L93 Difference]: Finished difference Result 647 states and 993 transitions. [2023-11-23 06:50:10,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 06:50:10,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) Word has length 248 [2023-11-23 06:50:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:10,673 INFO L225 Difference]: With dead ends: 647 [2023-11-23 06:50:10,673 INFO L226 Difference]: Without dead ends: 429 [2023-11-23 06:50:10,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2023-11-23 06:50:10,675 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 270 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 9 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:10,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1860 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1130 Invalid, 10 Unknown, 0 Unchecked, 24.5s Time] [2023-11-23 06:50:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-11-23 06:50:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 410. [2023-11-23 06:50:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 249 states have (on average 1.2248995983935742) internal successors, (305), 264 states have internal predecessors, (305), 122 states have call successors, (122), 26 states have call predecessors, (122), 38 states have return successors, (212), 119 states have call predecessors, (212), 120 states have call successors, (212) [2023-11-23 06:50:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 639 transitions. [2023-11-23 06:50:10,707 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 639 transitions. Word has length 248 [2023-11-23 06:50:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:10,708 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 639 transitions. [2023-11-23 06:50:10,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-23 06:50:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 639 transitions. [2023-11-23 06:50:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-23 06:50:10,709 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:10,709 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:50:10,730 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 06:50:10,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:10,912 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:10,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:10,913 INFO L85 PathProgramCache]: Analyzing trace with hash 142460531, now seen corresponding path program 1 times [2023-11-23 06:50:10,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:10,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157048502] [2023-11-23 06:50:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:50:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:50:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:50:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:50:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:50:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:50:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:50:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:50:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:50:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 06:50:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 06:50:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:12,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 06:50:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-11-23 06:50:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-23 06:50:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-23 06:50:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-23 06:50:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-11-23 06:50:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-11-23 06:50:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-23 06:50:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-23 06:50:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-23 06:50:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-23 06:50:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 30 proven. 22 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2023-11-23 06:50:12,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157048502] [2023-11-23 06:50:12,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157048502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196304813] [2023-11-23 06:50:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:12,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:12,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:12,438 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 06:50:12,447 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 06:50:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:13,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 4156 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 06:50:13,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:13,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:50:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2023-11-23 06:50:13,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:13,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196304813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:13,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:13,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2023-11-23 06:50:13,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795970723] [2023-11-23 06:50:13,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:13,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 06:50:13,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:13,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 06:50:13,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-11-23 06:50:13,643 INFO L87 Difference]: Start difference. First operand 410 states and 639 transitions. Second operand has 12 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-23 06:50:16,142 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 06:50:20,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:22,027 WARN L539 Checker$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 06:50:24,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:26,749 WARN L539 Checker$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 06:50:28,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:30,868 WARN L539 Checker$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 06:50:32,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:34,981 WARN L539 Checker$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 06:50:37,087 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 06:50:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:37,156 INFO L93 Difference]: Finished difference Result 794 states and 1227 transitions. [2023-11-23 06:50:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 06:50:37,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) Word has length 252 [2023-11-23 06:50:37,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:37,159 INFO L225 Difference]: With dead ends: 794 [2023-11-23 06:50:37,159 INFO L226 Difference]: Without dead ends: 429 [2023-11-23 06:50:37,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2023-11-23 06:50:37,161 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 268 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 1068 mSolverCounterSat, 8 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1068 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:37,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1669 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1068 Invalid, 10 Unknown, 0 Unchecked, 23.4s Time] [2023-11-23 06:50:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-11-23 06:50:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 410. [2023-11-23 06:50:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 249 states have (on average 1.2248995983935742) internal successors, (305), 264 states have internal predecessors, (305), 122 states have call successors, (122), 26 states have call predecessors, (122), 38 states have return successors, (211), 119 states have call predecessors, (211), 120 states have call successors, (211) [2023-11-23 06:50:37,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 638 transitions. [2023-11-23 06:50:37,194 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 638 transitions. Word has length 252 [2023-11-23 06:50:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:37,194 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 638 transitions. [2023-11-23 06:50:37,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 4 states have call successors, (33), 3 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 4 states have call successors, (32) [2023-11-23 06:50:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 638 transitions. [2023-11-23 06:50:37,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-23 06:50:37,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:37,196 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:50:37,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 06:50:37,413 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,SelfDestructingSolverStorable16 [2023-11-23 06:50:37,413 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:37,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:37,414 INFO L85 PathProgramCache]: Analyzing trace with hash -896875219, now seen corresponding path program 2 times [2023-11-23 06:50:37,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:37,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854868135] [2023-11-23 06:50:37,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:37,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:50:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:50:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:50:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:50:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:50:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:50:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:50:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:50:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:50:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 06:50:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 06:50:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 06:50:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 06:50:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-23 06:50:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-23 06:50:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 06:50:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-23 06:50:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-23 06:50:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-23 06:50:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-23 06:50:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-23 06:50:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-23 06:50:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 30 proven. 23 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-11-23 06:50:39,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854868135] [2023-11-23 06:50:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854868135] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863174541] [2023-11-23 06:50:39,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:50:39,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:39,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:39,113 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 06:50:39,130 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 06:50:40,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 06:50:40,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:50:40,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 4163 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-23 06:50:40,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:40,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:50:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2023-11-23 06:50:40,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:40,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863174541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:40,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:40,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [12] total 24 [2023-11-23 06:50:40,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578521911] [2023-11-23 06:50:40,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:40,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 06:50:40,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 06:50:40,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2023-11-23 06:50:40,566 INFO L87 Difference]: Start difference. First operand 410 states and 638 transitions. Second operand has 14 states, 11 states have (on average 9.363636363636363) internal successors, (103), 13 states have internal predecessors, (103), 5 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-23 06:50:45,097 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 06:50:47,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:50,027 WARN L539 Checker$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 06:50:52,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:50:55,786 WARN L539 Checker$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 06:50:57,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:00,153 WARN L539 Checker$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 06:51:02,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:04,435 WARN L539 Checker$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 06:51:06,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:08,447 WARN L539 Checker$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 06:51:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:09,090 INFO L93 Difference]: Finished difference Result 772 states and 1194 transitions. [2023-11-23 06:51:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 06:51:09,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 9.363636363636363) internal successors, (103), 13 states have internal predecessors, (103), 5 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) Word has length 256 [2023-11-23 06:51:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:09,092 INFO L225 Difference]: With dead ends: 772 [2023-11-23 06:51:09,092 INFO L226 Difference]: Without dead ends: 424 [2023-11-23 06:51:09,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 321 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 06:51:09,094 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 310 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 3040 mSolverCounterSat, 204 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 3040 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:09,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1231 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 3040 Invalid, 12 Unknown, 0 Unchecked, 28.3s Time] [2023-11-23 06:51:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-11-23 06:51:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 405. [2023-11-23 06:51:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 246 states have (on average 1.2276422764227641) internal successors, (302), 261 states have internal predecessors, (302), 121 states have call successors, (121), 25 states have call predecessors, (121), 37 states have return successors, (206), 118 states have call predecessors, (206), 119 states have call successors, (206) [2023-11-23 06:51:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 629 transitions. [2023-11-23 06:51:09,137 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 629 transitions. Word has length 256 [2023-11-23 06:51:09,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:09,137 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 629 transitions. [2023-11-23 06:51:09,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 9.363636363636363) internal successors, (103), 13 states have internal predecessors, (103), 5 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 5 states have call predecessors, (32), 5 states have call successors, (32) [2023-11-23 06:51:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 629 transitions. [2023-11-23 06:51:09,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-23 06:51:09,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:09,140 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-23 06:51:09,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-23 06:51:09,356 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,SelfDestructingSolverStorable17 [2023-11-23 06:51:09,356 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:09,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:09,356 INFO L85 PathProgramCache]: Analyzing trace with hash -468151885, now seen corresponding path program 3 times [2023-11-23 06:51:09,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:09,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895880685] [2023-11-23 06:51:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:09,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:51:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:51:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:51:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:51:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:51:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:51:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:51:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:51:10,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:51:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 06:51:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 06:51:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 06:51:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 06:51:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-23 06:51:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-23 06:51:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 06:51:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-23 06:51:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-23 06:51:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 06:51:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-23 06:51:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-23 06:51:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-23 06:51:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:10,922 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 30 proven. 24 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 06:51:10,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:10,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895880685] [2023-11-23 06:51:10,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895880685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:10,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509533994] [2023-11-23 06:51:10,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 06:51:10,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:10,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:10,925 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 06:51:10,926 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 06:51:11,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 06:51:11,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:51:11,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 2519 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-23 06:51:11,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:11,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-23 06:51:12,164 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 48 treesize of output 36 [2023-11-23 06:51:12,167 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 48 treesize of output 36 [2023-11-23 06:51:12,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-11-23 06:51:12,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-11-23 06:51:14,210 WARN L876 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.offset_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.base_BEFORE_CALL_2| Int)) (not (= (select (select |c_#memory_$Pointer$#5.base| |v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.offset_BEFORE_CALL_1| 8)) 0))) (exists ((|v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.offset_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.base_BEFORE_CALL_2| Int)) (not (= (select (select |c_#memory_$Pointer$#5.offset| |v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_aws_byte_cursor_from_buf_~#cur~0#1.offset_BEFORE_CALL_1| 8)) 0)))) is different from true [2023-11-23 06:51:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2023-11-23 06:51:14,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:14,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509533994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:14,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:14,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [12] total 30 [2023-11-23 06:51:14,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734923995] [2023-11-23 06:51:14,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:14,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 06:51:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 06:51:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=754, Unknown=1, NotChecked=54, Total=870 [2023-11-23 06:51:14,751 INFO L87 Difference]: Start difference. First operand 405 states and 629 transitions. Second operand has 21 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:51:20,753 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 06:51:21,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:21,937 INFO L93 Difference]: Finished difference Result 839 states and 1319 transitions. [2023-11-23 06:51:21,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-23 06:51:21,938 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 260 [2023-11-23 06:51:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:21,940 INFO L225 Difference]: With dead ends: 839 [2023-11-23 06:51:21,941 INFO L226 Difference]: Without dead ends: 487 [2023-11-23 06:51:21,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=150, Invalid=1659, Unknown=1, NotChecked=82, Total=1892 [2023-11-23 06:51:21,942 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 60 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 344 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:21,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3824 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1803 Invalid, 1 Unknown, 344 Unchecked, 6.6s Time] [2023-11-23 06:51:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-11-23 06:51:21,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 471. [2023-11-23 06:51:21,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 296 states have (on average 1.2162162162162162) internal successors, (360), 317 states have internal predecessors, (360), 129 states have call successors, (129), 27 states have call predecessors, (129), 45 states have return successors, (266), 126 states have call predecessors, (266), 127 states have call successors, (266) [2023-11-23 06:51:21,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 755 transitions. [2023-11-23 06:51:21,983 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 755 transitions. Word has length 260 [2023-11-23 06:51:21,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:21,984 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 755 transitions. [2023-11-23 06:51:21,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 4.294117647058823) internal successors, (73), 18 states have internal predecessors, (73), 4 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2023-11-23 06:51:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 755 transitions. [2023-11-23 06:51:21,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-23 06:51:21,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:21,986 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-23 06:51:22,011 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 06:51:22,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:22,203 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:22,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:22,203 INFO L85 PathProgramCache]: Analyzing trace with hash 232912693, now seen corresponding path program 1 times [2023-11-23 06:51:22,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:22,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737488006] [2023-11-23 06:51:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:22,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:51:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:51:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:51:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:51:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:51:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:51:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 06:51:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:51:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 06:51:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 06:51:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 06:51:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 06:51:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-23 06:51:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-23 06:51:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-23 06:51:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-11-23 06:51:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-23 06:51:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-23 06:51:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-23 06:51:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-23 06:51:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-23 06:51:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-23 06:51:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 30 proven. 24 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2023-11-23 06:51:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737488006] [2023-11-23 06:51:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737488006] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638085593] [2023-11-23 06:51:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:23,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:23,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:23,748 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 06:51:23,751 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 06:51:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:24,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 4165 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 06:51:24,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:24,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:51:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2023-11-23 06:51:25,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:25,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638085593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:25,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:25,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2023-11-23 06:51:25,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356815584] [2023-11-23 06:51:25,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:25,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 06:51:25,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:25,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 06:51:25,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2023-11-23 06:51:25,017 INFO L87 Difference]: Start difference. First operand 471 states and 755 transitions. Second operand has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-23 06:51:27,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:30,667 WARN L539 Checker$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 06:51:32,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:34,939 WARN L539 Checker$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 06:51:37,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:39,573 WARN L539 Checker$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 06:51:41,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:43,670 WARN L539 Checker$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 06:51:45,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:47,838 WARN L539 Checker$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 06:51:47,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:47,967 INFO L93 Difference]: Finished difference Result 946 states and 1498 transitions. [2023-11-23 06:51:47,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 06:51:47,968 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) Word has length 260 [2023-11-23 06:51:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:47,971 INFO L225 Difference]: With dead ends: 946 [2023-11-23 06:51:47,971 INFO L226 Difference]: Without dead ends: 490 [2023-11-23 06:51:47,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=619, Unknown=0, NotChecked=0, Total=702 [2023-11-23 06:51:47,973 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 254 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 11 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1838 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:47,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1838 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1269 Invalid, 10 Unknown, 0 Unchecked, 22.8s Time] [2023-11-23 06:51:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-11-23 06:51:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 471. [2023-11-23 06:51:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 296 states have (on average 1.2162162162162162) internal successors, (360), 317 states have internal predecessors, (360), 129 states have call successors, (129), 27 states have call predecessors, (129), 45 states have return successors, (265), 126 states have call predecessors, (265), 127 states have call successors, (265) [2023-11-23 06:51:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 754 transitions. [2023-11-23 06:51:48,014 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 754 transitions. Word has length 260 [2023-11-23 06:51:48,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:48,015 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 754 transitions. [2023-11-23 06:51:48,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2023-11-23 06:51:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 754 transitions. [2023-11-23 06:51:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 06:51:48,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:48,017 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:48,036 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 06:51:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:48,236 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:48,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1653929797, now seen corresponding path program 2 times [2023-11-23 06:51:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:48,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033353267] [2023-11-23 06:51:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:51:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:51:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:51:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:51:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 06:51:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 06:51:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 06:51:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 06:51:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 06:51:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 06:51:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 06:51:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-23 06:51:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:51:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:51:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:51:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:51:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-23 06:51:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-23 06:51:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-23 06:51:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 06:51:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-23 06:51:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-23 06:51:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-23 06:51:49,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033353267] [2023-11-23 06:51:49,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033353267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651198959] [2023-11-23 06:51:49,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:51:49,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:49,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:49,707 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 06:51:49,708 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 06:51:50,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 06:51:50,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:51:50,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 2395 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 06:51:50,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2023-11-23 06:51:50,598 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651198959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:50,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:50,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-11-23 06:51:50,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227461322] [2023-11-23 06:51:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:50,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 06:51:50,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:50,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 06:51:50,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-23 06:51:50,599 INFO L87 Difference]: Start difference. First operand 471 states and 754 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 06:51:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:52,065 INFO L93 Difference]: Finished difference Result 873 states and 1402 transitions. [2023-11-23 06:51:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 06:51:52,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 264 [2023-11-23 06:51:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:52,068 INFO L225 Difference]: With dead ends: 873 [2023-11-23 06:51:52,069 INFO L226 Difference]: Without dead ends: 467 [2023-11-23 06:51:52,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 06:51:52,075 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 10 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:52,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 740 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-23 06:51:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-23 06:51:52,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2023-11-23 06:51:52,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 292 states have (on average 1.1986301369863013) internal successors, (350), 313 states have internal predecessors, (350), 129 states have call successors, (129), 27 states have call predecessors, (129), 45 states have return successors, (265), 126 states have call predecessors, (265), 127 states have call successors, (265) [2023-11-23 06:51:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 744 transitions. [2023-11-23 06:51:52,122 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 744 transitions. Word has length 264 [2023-11-23 06:51:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:52,123 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 744 transitions. [2023-11-23 06:51:52,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2023-11-23 06:51:52,123 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 744 transitions. [2023-11-23 06:51:52,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-23 06:51:52,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:52,125 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:52,153 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 06:51:52,353 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,SelfDestructingSolverStorable20 [2023-11-23 06:51:52,353 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:52,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash 16744887, now seen corresponding path program 1 times [2023-11-23 06:51:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:52,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513253761] [2023-11-23 06:51:52,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:52,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:51:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-23 06:51:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:51:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:51:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 06:51:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-23 06:51:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 06:51:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 06:51:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 06:51:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 06:51:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 06:51:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-23 06:51:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 06:51:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 06:51:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-23 06:51:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-23 06:51:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-23 06:51:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-23 06:51:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-23 06:51:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-23 06:51:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-23 06:51:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-23 06:51:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 18 proven. 37 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-11-23 06:51:53,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:53,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513253761] [2023-11-23 06:51:53,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513253761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:53,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934833194] [2023-11-23 06:51:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:53,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:53,738 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 06:51:53,739 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 06:51:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:54,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 4172 conjuncts, 115 conjunts are in the unsatisfiable core [2023-11-23 06:51:54,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:54,776 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-23 06:51:54,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2023-11-23 06:51:54,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:51:57,335 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 06:51:59,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-23 06:51:59,766 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 06:51:59,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-23 06:51:59,977 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 06:51:59,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-23 06:52:00,342 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 37 treesize of output 1 [2023-11-23 06:52:00,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 1 [2023-11-23 06:52:00,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 32 [2023-11-23 06:52:00,790 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 26 treesize of output 14 [2023-11-23 06:52:01,016 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 37 treesize of output 25 [2023-11-23 06:52:01,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2023-11-23 06:52:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 199 proven. 83 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-23 06:52:01,305 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 06:52:01,980 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6350 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_aws_byte_buf_cat_harness_~#dest~1#1.base| v_ArrVal_6350) |c_ULTIMATE.start_aws_byte_buf_cat_harness_~#buffer1~0#1.base|) (+ 8 |c_ULTIMATE.start_aws_byte_buf_cat_harness_~#buffer1~0#1.offset|)) 0))) is different from false [2023-11-23 06:52:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934833194] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:52:01,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 06:52:01,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 25] total 35 [2023-11-23 06:52:01,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98634627] [2023-11-23 06:52:01,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 06:52:01,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-23 06:52:01,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:52:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-23 06:52:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1668, Unknown=3, NotChecked=82, Total=1892 [2023-11-23 06:52:01,985 INFO L87 Difference]: Start difference. First operand 467 states and 744 transitions. Second operand has 35 states, 28 states have (on average 5.178571428571429) internal successors, (145), 29 states have internal predecessors, (145), 13 states have call successors, (62), 9 states have call predecessors, (62), 10 states have return successors, (61), 12 states have call predecessors, (61), 13 states have call successors, (61) [2023-11-23 06:52:05,698 WARN L539 Checker$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 06:52:07,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:52:13,936 WARN L539 Checker$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 06:52:15,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:52:22,000 WARN L539 Checker$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 06:52:24,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:52:26,092 WARN L539 Checker$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 06:52:28,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:52:30,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15