./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_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_cursor_read_and_fill_buffer_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 d889ee2ad1841e952a05e0618f2f5e45d74caf750c227edcea67ec775b00fd37 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:09:08,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:09:08,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:09:08,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:09:08,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:09:08,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:09:08,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:09:08,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:09:08,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:09:08,638 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:09:08,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:09:08,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:09:08,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:09:08,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:09:08,641 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:09:08,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:09:08,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:09:08,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:09:08,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:09:08,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:09:08,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:09:08,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:09:08,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:09:08,643 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:09:08,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:09:08,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:09:08,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:09:08,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:09:08,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:09:08,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:09:08,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:09:08,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:09:08,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:09:08,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:09:08,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:09:08,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:09:08,646 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:09:08,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:09:08,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:09:08,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d889ee2ad1841e952a05e0618f2f5e45d74caf750c227edcea67ec775b00fd37 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:09:08,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:09:08,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:09:08,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:09:08,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:09:08,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:09:08,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i [2023-11-23 07:09:10,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:09:10,613 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:09:10,613 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i [2023-11-23 07:09:10,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd33a9a23/66cf67923c324655b7de77e2f0314891/FLAGda4d6d700 [2023-11-23 07:09:10,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd33a9a23/66cf67923c324655b7de77e2f0314891 [2023-11-23 07:09:10,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:09:10,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:09:10,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:09:10,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:09:10,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:09:10,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:09:10" (1/1) ... [2023-11-23 07:09:10,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca342dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:10, skipping insertion in model container [2023-11-23 07:09:10,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:09:10" (1/1) ... [2023-11-23 07:09:10,760 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:09:11,008 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i[4510,4523] [2023-11-23 07:09:11,015 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i[4570,4583] [2023-11-23 07:09:11,545 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,551 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,552 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,554 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,556 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,566 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,568 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,571 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,572 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:11,813 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:09:11,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:09:11,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:09:11,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:09:11,816 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:09:11,816 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:09:11,817 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:09:11,819 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:09:11,820 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:09:11,822 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:09:12,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,014 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:09:12,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:09:12,121 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i[4510,4523] [2023-11-23 07:09:12,122 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_cursor_read_and_fill_buffer_harness.i[4570,4583] [2023-11-23 07:09:12,142 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,142 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,142 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,143 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,143 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,147 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,147 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,148 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,148 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,167 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:09:12,168 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:09:12,168 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:09:12,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:09:12,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:09:12,169 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:09:12,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:09:12,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:09:12,170 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:09:12,171 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:09:12,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-23 07:09:12,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:09:12,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-23 07:09:12,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:09:12,529 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,529 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,529 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,530 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,531 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,531 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,531 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,531 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,532 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,532 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,532 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,532 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,532 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:09:12,538 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:09:12,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12 WrapperNode [2023-11-23 07:09:12,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:09:12,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:09:12,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:09:12,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:09:12,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,682 INFO L138 Inliner]: procedures = 689, calls = 2670, calls flagged for inlining = 61, calls inlined = 10, statements flattened = 1100 [2023-11-23 07:09:12,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:09:12,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:09:12,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:09:12,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:09:12,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,783 INFO L188 MemorySlicer]: Split 598 memory accesses to 12 slices as follows [2, 30, 246, 0, 256, 9, 6, 0, 8, 34, 4, 3]. 43 percent of accesses are in the largest equivalence class. The 516 initializations are split as follows [2, 4, 241, 0, 256, 4, 0, 0, 2, 2, 2, 3]. The 15 writes are split as follows [0, 3, 1, 0, 0, 0, 2, 0, 0, 9, 0, 0]. [2023-11-23 07:09:12,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:09:12,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:09:12,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:09:12,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:09:12,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (1/1) ... [2023-11-23 07:09:12,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:09:12,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:12,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:09:12,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:09:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2023-11-23 07:09:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2023-11-23 07:09:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 07:09:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 07:09:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2023-11-23 07:09:12,973 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2023-11-23 07:09:12,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:09:12,974 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2023-11-23 07:09:12,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2023-11-23 07:09:12,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#9 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#10 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#11 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 07:09:12,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-23 07:09:12,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-23 07:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-23 07:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 07:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 07:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 07:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:09:12,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-23 07:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-23 07:09:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:09:12,982 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-23 07:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-23 07:09:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-23 07:09:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:09:12,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:09:12,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:09:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:09:12,985 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 07:09:12,987 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 07:09:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:09:12,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:09:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:09:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 07:09:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 07:09:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 07:09:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 07:09:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:09:12,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:09:12,993 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:09:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 07:09:12,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 07:09:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 07:09:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:09:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:09:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:09:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:09:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:09:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:09:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:09:12,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 07:09:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2023-11-23 07:09:13,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#9 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#10 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#11 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:09:13,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 07:09:13,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 07:09:13,414 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:09:13,416 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:09:14,789 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:09:14,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:09:14,860 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 07:09:14,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:09:14 BoogieIcfgContainer [2023-11-23 07:09:14,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:09:14,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:09:14,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:09:14,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:09:14,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:09:10" (1/3) ... [2023-11-23 07:09:14,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d10903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:09:14, skipping insertion in model container [2023-11-23 07:09:14,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:09:12" (2/3) ... [2023-11-23 07:09:14,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d10903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:09:14, skipping insertion in model container [2023-11-23 07:09:14,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:09:14" (3/3) ... [2023-11-23 07:09:14,867 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_and_fill_buffer_harness.i [2023-11-23 07:09:14,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:09:14,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:09:14,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:09:14,922 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;@13bcff09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:09:14,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:09:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 189 states, 120 states have (on average 1.3583333333333334) internal successors, (163), 121 states have internal predecessors, (163), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-23 07:09:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 07:09:14,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:14,937 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 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] [2023-11-23 07:09:14,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:14,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:14,942 INFO L85 PathProgramCache]: Analyzing trace with hash -708229647, now seen corresponding path program 1 times [2023-11-23 07:09:14,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:14,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852069586] [2023-11-23 07:09:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:14,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:15,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:09:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 07:09:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:09:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:09:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:09:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:09:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:09:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:09:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 07:09:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 07:09:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:09:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:09:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 07:09:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 07:09:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:09:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:09:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:09:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:16,419 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 07:09:16,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852069586] [2023-11-23 07:09:16,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852069586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:16,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915165939] [2023-11-23 07:09:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:16,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:16,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:16,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:16,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:09:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:17,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 07:09:17,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-23 07:09:17,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:17,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915165939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:17,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:17,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2023-11-23 07:09:17,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557031117] [2023-11-23 07:09:17,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:17,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 07:09:17,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 07:09:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:09:17,187 INFO L87 Difference]: Start difference. First operand has 189 states, 120 states have (on average 1.3583333333333334) internal successors, (163), 121 states have internal predecessors, (163), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:17,313 INFO L93 Difference]: Finished difference Result 374 states and 573 transitions. [2023-11-23 07:09:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 07:09:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2023-11-23 07:09:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:17,323 INFO L225 Difference]: With dead ends: 374 [2023-11-23 07:09:17,323 INFO L226 Difference]: Without dead ends: 182 [2023-11-23 07:09:17,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:09:17,330 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:17,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 257 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:09:17,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-23 07:09:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-23 07:09:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 115 states have (on average 1.3391304347826087) internal successors, (154), 117 states have internal predecessors, (154), 55 states have call successors, (55), 12 states have call predecessors, (55), 11 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-23 07:09:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 261 transitions. [2023-11-23 07:09:17,376 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 261 transitions. Word has length 118 [2023-11-23 07:09:17,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:17,377 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 261 transitions. [2023-11-23 07:09:17,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 261 transitions. [2023-11-23 07:09:17,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-23 07:09:17,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:17,381 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 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] [2023-11-23 07:09:17,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 07:09:17,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 07:09:17,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:17,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:17,599 INFO L85 PathProgramCache]: Analyzing trace with hash -386952079, now seen corresponding path program 1 times [2023-11-23 07:09:17,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:17,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063020448] [2023-11-23 07:09:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:17,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:09:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 07:09:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 07:09:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:09:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 07:09:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 07:09:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:09:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:09:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 07:09:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 07:09:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 07:09:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:09:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 07:09:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 07:09:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:09:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-23 07:09:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:09:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 07:09:18,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:18,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063020448] [2023-11-23 07:09:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063020448] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:18,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090147317] [2023-11-23 07:09:18,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:18,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:18,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:18,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:18,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:09:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:19,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 3082 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:09:19,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 07:09:19,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:19,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090147317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:19,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:19,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 07:09:19,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353871209] [2023-11-23 07:09:19,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:19,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:09:19,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:19,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:09:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:09:19,259 INFO L87 Difference]: Start difference. First operand 182 states and 261 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:19,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:19,699 INFO L93 Difference]: Finished difference Result 359 states and 523 transitions. [2023-11-23 07:09:19,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:09:19,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2023-11-23 07:09:19,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:19,705 INFO L225 Difference]: With dead ends: 359 [2023-11-23 07:09:19,705 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 07:09:19,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:09:19,709 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 53 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:19,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 824 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:09:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 07:09:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 07:09:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 119 states have internal predecessors, (155), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (61), 52 states have call predecessors, (61), 52 states have call successors, (61) [2023-11-23 07:09:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 271 transitions. [2023-11-23 07:09:19,741 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 271 transitions. Word has length 118 [2023-11-23 07:09:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:19,742 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 271 transitions. [2023-11-23 07:09:19,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 271 transitions. [2023-11-23 07:09:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 07:09:19,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:19,752 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:19,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:09:19,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-23 07:09:19,970 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:19,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:19,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1677558582, now seen corresponding path program 1 times [2023-11-23 07:09:19,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:19,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979425898] [2023-11-23 07:09:19,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:19,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:09:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 07:09:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 07:09:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:09:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:09:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:09:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:09:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 07:09:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 07:09:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:09:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-23 07:09:20,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:20,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979425898] [2023-11-23 07:09:20,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979425898] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:20,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969287483] [2023-11-23 07:09:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:20,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:20,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:20,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:21,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 07:09:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:21,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 3087 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:09:21,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 07:09:21,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:21,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969287483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:21,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:21,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2023-11-23 07:09:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147262542] [2023-11-23 07:09:21,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:21,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:09:21,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:21,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:09:21,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:09:21,710 INFO L87 Difference]: Start difference. First operand 184 states and 271 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:22,088 INFO L93 Difference]: Finished difference Result 330 states and 490 transitions. [2023-11-23 07:09:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:09:22,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 120 [2023-11-23 07:09:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:22,108 INFO L225 Difference]: With dead ends: 330 [2023-11-23 07:09:22,108 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 07:09:22,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:09:22,110 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 55 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:22,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1046 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:09:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 07:09:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 07:09:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 119 states have internal predecessors, (155), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2023-11-23 07:09:22,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 268 transitions. [2023-11-23 07:09:22,120 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 268 transitions. Word has length 120 [2023-11-23 07:09:22,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:22,121 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 268 transitions. [2023-11-23 07:09:22,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 4 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:22,121 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 268 transitions. [2023-11-23 07:09:22,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-23 07:09:22,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:22,123 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:22,141 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 07:09:22,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:22,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:22,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:22,339 INFO L85 PathProgramCache]: Analyzing trace with hash 983025553, now seen corresponding path program 2 times [2023-11-23 07:09:22,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:22,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600090944] [2023-11-23 07:09:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:09:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:09:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:09:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:09:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:09:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 07:09:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 07:09:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:09:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:09:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2023-11-23 07:09:23,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:23,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600090944] [2023-11-23 07:09:23,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600090944] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:23,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148497209] [2023-11-23 07:09:23,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:09:23,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:23,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:23,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:23,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 07:09:23,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:09:23,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:09:23,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:09:23,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-23 07:09:23,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:23,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148497209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:23,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:23,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2023-11-23 07:09:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843627825] [2023-11-23 07:09:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:23,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:09:23,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:09:23,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:09:23,995 INFO L87 Difference]: Start difference. First operand 184 states and 268 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 6 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 07:09:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:24,909 INFO L93 Difference]: Finished difference Result 322 states and 472 transitions. [2023-11-23 07:09:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:09:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 6 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) Word has length 122 [2023-11-23 07:09:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:24,913 INFO L225 Difference]: With dead ends: 322 [2023-11-23 07:09:24,914 INFO L226 Difference]: Without dead ends: 184 [2023-11-23 07:09:24,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:09:24,915 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 178 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:24,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1579 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 07:09:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-23 07:09:24,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-23 07:09:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 119 states have internal predecessors, (155), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (53), 52 states have call predecessors, (53), 52 states have call successors, (53) [2023-11-23 07:09:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 263 transitions. [2023-11-23 07:09:24,931 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 263 transitions. Word has length 122 [2023-11-23 07:09:24,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:24,932 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 263 transitions. [2023-11-23 07:09:24,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 6 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2023-11-23 07:09:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 263 transitions. [2023-11-23 07:09:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-23 07:09:24,936 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:24,936 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 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] [2023-11-23 07:09:24,958 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 07:09:25,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:25,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:25,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash 838750284, now seen corresponding path program 1 times [2023-11-23 07:09:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:25,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284265051] [2023-11-23 07:09:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:25,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 07:09:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-23 07:09:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:09:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 07:09:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 07:09:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:09:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:09:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:09:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:09:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-23 07:09:26,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:26,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284265051] [2023-11-23 07:09:26,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284265051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:26,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349387070] [2023-11-23 07:09:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:26,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:26,038 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:26,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 07:09:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:26,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 3107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 07:09:26,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-23 07:09:26,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:26,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349387070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:26,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:26,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-23 07:09:26,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923403376] [2023-11-23 07:09:26,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:26,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:09:26,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:26,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:09:26,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:09:26,679 INFO L87 Difference]: Start difference. First operand 184 states and 263 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, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:09:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:26,973 INFO L93 Difference]: Finished difference Result 345 states and 499 transitions. [2023-11-23 07:09:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:09:26,973 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, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 128 [2023-11-23 07:09:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:26,975 INFO L225 Difference]: With dead ends: 345 [2023-11-23 07:09:26,976 INFO L226 Difference]: Without dead ends: 186 [2023-11-23 07:09:26,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:09:26,979 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 55 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:26,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 637 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 07:09:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-23 07:09:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-23 07:09:26,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 121 states have internal predecessors, (156), 55 states have call successors, (55), 12 states have call predecessors, (55), 13 states have return successors, (56), 52 states have call predecessors, (56), 52 states have call successors, (56) [2023-11-23 07:09:26,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 267 transitions. [2023-11-23 07:09:26,995 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 267 transitions. Word has length 128 [2023-11-23 07:09:26,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:26,996 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 267 transitions. [2023-11-23 07:09:26,996 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, (22), 2 states have call predecessors, (22), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:09:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 267 transitions. [2023-11-23 07:09:26,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 07:09:26,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:26,997 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:27,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 07:09:27,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:27,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:27,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:27,214 INFO L85 PathProgramCache]: Analyzing trace with hash 903341849, now seen corresponding path program 1 times [2023-11-23 07:09:27,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:27,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408298536] [2023-11-23 07:09:27,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:27,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:09:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:09:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:09:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:09:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:09:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:09:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:09:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:09:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:09:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-23 07:09:27,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408298536] [2023-11-23 07:09:27,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408298536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815318543] [2023-11-23 07:09:27,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:27,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:27,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:27,765 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:27,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 07:09:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:28,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:09:28,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:28,358 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-23 07:09:28,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:28,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815318543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:28,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:28,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-23 07:09:28,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22301169] [2023-11-23 07:09:28,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:28,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:09:28,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:28,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:09:28,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:09:28,361 INFO L87 Difference]: Start difference. First operand 186 states and 267 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:28,490 INFO L93 Difference]: Finished difference Result 357 states and 520 transitions. [2023-11-23 07:09:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:09:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 134 [2023-11-23 07:09:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:28,492 INFO L225 Difference]: With dead ends: 357 [2023-11-23 07:09:28,492 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 07:09:28,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:09:28,493 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 29 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:28,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 726 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:09:28,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 07:09:28,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-11-23 07:09:28,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 123 states have internal predecessors, (158), 55 states have call successors, (55), 12 states have call predecessors, (55), 13 states have return successors, (56), 52 states have call predecessors, (56), 52 states have call successors, (56) [2023-11-23 07:09:28,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 269 transitions. [2023-11-23 07:09:28,502 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 269 transitions. Word has length 134 [2023-11-23 07:09:28,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:28,503 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 269 transitions. [2023-11-23 07:09:28,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:09:28,503 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2023-11-23 07:09:28,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 07:09:28,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:28,504 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:28,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 07:09:28,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:28,720 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:28,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash -448043369, now seen corresponding path program 1 times [2023-11-23 07:09:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:28,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661023796] [2023-11-23 07:09:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:09:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:09:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 07:09:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 07:09:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 07:09:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:09:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:09:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 07:09:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 07:09:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2023-11-23 07:09:29,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:29,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661023796] [2023-11-23 07:09:29,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661023796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:29,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:09:29,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:09:29,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458075162] [2023-11-23 07:09:29,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:29,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:09:29,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:09:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:09:29,456 INFO L87 Difference]: Start difference. First operand 188 states and 269 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:31,510 INFO L93 Difference]: Finished difference Result 340 states and 489 transitions. [2023-11-23 07:09:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:09:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 134 [2023-11-23 07:09:31,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:31,512 INFO L225 Difference]: With dead ends: 340 [2023-11-23 07:09:31,512 INFO L226 Difference]: Without dead ends: 191 [2023-11-23 07:09:31,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:09:31,514 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 217 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:31,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 718 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 07:09:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-23 07:09:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2023-11-23 07:09:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 118 states have (on average 1.3220338983050848) internal successors, (156), 121 states have internal predecessors, (156), 55 states have call successors, (55), 12 states have call predecessors, (55), 12 states have return successors, (53), 52 states have call predecessors, (53), 52 states have call successors, (53) [2023-11-23 07:09:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 264 transitions. [2023-11-23 07:09:31,528 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 264 transitions. Word has length 134 [2023-11-23 07:09:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:31,529 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 264 transitions. [2023-11-23 07:09:31,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 4 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 264 transitions. [2023-11-23 07:09:31,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-23 07:09:31,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:31,530 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:31,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 07:09:31,531 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:31,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:31,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1247053026, now seen corresponding path program 1 times [2023-11-23 07:09:31,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:31,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080784075] [2023-11-23 07:09:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:31,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:09:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:09:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:09:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:09:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:09:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:09:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:09:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 07:09:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 07:09:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2023-11-23 07:09:32,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:32,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080784075] [2023-11-23 07:09:32,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080784075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:32,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:09:32,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:09:32,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396677003] [2023-11-23 07:09:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:32,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:09:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:32,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:09:32,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:09:32,797 INFO L87 Difference]: Start difference. First operand 186 states and 264 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 07:09:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:36,491 INFO L93 Difference]: Finished difference Result 202 states and 293 transitions. [2023-11-23 07:09:36,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:09:36,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 140 [2023-11-23 07:09:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:36,496 INFO L225 Difference]: With dead ends: 202 [2023-11-23 07:09:36,496 INFO L226 Difference]: Without dead ends: 200 [2023-11-23 07:09:36,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:09:36,497 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 178 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:36,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1065 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 07:09:36,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-23 07:09:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 194. [2023-11-23 07:09:36,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 56 states have call successors, (56), 13 states have call predecessors, (56), 14 states have return successors, (65), 53 states have call predecessors, (65), 53 states have call successors, (65) [2023-11-23 07:09:36,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-11-23 07:09:36,523 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 140 [2023-11-23 07:09:36,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:36,524 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-11-23 07:09:36,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 07:09:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-11-23 07:09:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 07:09:36,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:36,526 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:36,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 07:09:36,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:36,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1941842266, now seen corresponding path program 1 times [2023-11-23 07:09:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:36,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502098728] [2023-11-23 07:09:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 07:09:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:09:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:09:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:09:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 07:09:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:09:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 07:09:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:09:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-23 07:09:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 07:09:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:09:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 07:09:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 07:09:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-23 07:09:40,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:40,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502098728] [2023-11-23 07:09:40,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502098728] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:40,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658573809] [2023-11-23 07:09:40,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:40,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:40,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:40,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:40,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 07:09:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:41,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 3153 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 07:09:41,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:41,568 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 07:09:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-23 07:09:41,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:41,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658573809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:41,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:41,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [23] total 32 [2023-11-23 07:09:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552116667] [2023-11-23 07:09:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:41,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:09:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:09:41,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2023-11-23 07:09:41,898 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:44,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:47,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:49,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:51,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:53,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:55,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:09:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:09:56,014 INFO L93 Difference]: Finished difference Result 446 states and 637 transitions. [2023-11-23 07:09:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:09:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 144 [2023-11-23 07:09:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:09:56,016 INFO L225 Difference]: With dead ends: 446 [2023-11-23 07:09:56,016 INFO L226 Difference]: Without dead ends: 275 [2023-11-23 07:09:56,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=1086, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 07:09:56,017 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 235 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:09:56,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1535 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 558 Invalid, 6 Unknown, 0 Unchecked, 13.9s Time] [2023-11-23 07:09:56,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-23 07:09:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 270. [2023-11-23 07:09:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 179 states have (on average 1.3016759776536313) internal successors, (233), 186 states have internal predecessors, (233), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (77), 64 states have call predecessors, (77), 64 states have call successors, (77) [2023-11-23 07:09:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 380 transitions. [2023-11-23 07:09:56,037 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 380 transitions. Word has length 144 [2023-11-23 07:09:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:09:56,038 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 380 transitions. [2023-11-23 07:09:56,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-23 07:09:56,038 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 380 transitions. [2023-11-23 07:09:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-23 07:09:56,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:09:56,039 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:09:56,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 07:09:56,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:56,255 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:09:56,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:09:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1162544164, now seen corresponding path program 1 times [2023-11-23 07:09:56,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:09:56,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923497023] [2023-11-23 07:09:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:09:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:09:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:09:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:09:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:09:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:09:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:09:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:09:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:09:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:09:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:09:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:09:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:09:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-23 07:09:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:09:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 07:09:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:09:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 07:09:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 07:09:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:09:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,338 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-23 07:09:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:09:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923497023] [2023-11-23 07:09:57,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923497023] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:09:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770079832] [2023-11-23 07:09:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:09:57,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:09:57,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:09:57,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:09:57,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 07:09:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:09:57,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-23 07:09:57,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:09:58,029 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 07:09:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-23 07:09:58,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:09:58,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770079832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:09:58,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:09:58,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [10] total 22 [2023-11-23 07:09:58,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254930174] [2023-11-23 07:09:58,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:09:58,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 07:09:58,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:09:58,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 07:09:58,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:09:58,551 INFO L87 Difference]: Start difference. First operand 270 states and 380 transitions. Second operand has 14 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-23 07:10:01,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:10:03,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:10:05,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:10:08,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:10:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:09,567 INFO L93 Difference]: Finished difference Result 518 states and 724 transitions. [2023-11-23 07:10:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 07:10:09,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 148 [2023-11-23 07:10:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:09,569 INFO L225 Difference]: With dead ends: 518 [2023-11-23 07:10:09,569 INFO L226 Difference]: Without dead ends: 286 [2023-11-23 07:10:09,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 168 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2023-11-23 07:10:09,570 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 296 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 135 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:09,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1097 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1544 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2023-11-23 07:10:09,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-23 07:10:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2023-11-23 07:10:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 191 states have (on average 1.2984293193717278) internal successors, (248), 198 states have internal predecessors, (248), 70 states have call successors, (70), 21 states have call predecessors, (70), 22 states have return successors, (75), 64 states have call predecessors, (75), 64 states have call successors, (75) [2023-11-23 07:10:09,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 393 transitions. [2023-11-23 07:10:09,590 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 393 transitions. Word has length 148 [2023-11-23 07:10:09,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:09,591 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 393 transitions. [2023-11-23 07:10:09,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.5) internal successors, (78), 13 states have internal predecessors, (78), 6 states have call successors, (22), 4 states have call predecessors, (22), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-23 07:10:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 393 transitions. [2023-11-23 07:10:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 07:10:09,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:09,592 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:09,633 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 07:10:09,840 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,SelfDestructingSolverStorable9 [2023-11-23 07:10:09,840 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:09,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1268857490, now seen corresponding path program 1 times [2023-11-23 07:10:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:09,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896174394] [2023-11-23 07:10:09,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:09,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:10:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:10:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:10:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:10:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 07:10:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:10:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:10:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:10:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:10:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:10:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-23 07:10:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 07:10:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-23 07:10:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-23 07:10:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 07:10:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 07:10:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 07:10:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-23 07:10:11,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896174394] [2023-11-23 07:10:11,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896174394] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:11,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040836994] [2023-11-23 07:10:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:11,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:11,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:11,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:11,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 07:10:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:11,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 3167 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:10:11,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:10:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 07:10:11,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:10:11,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040836994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:10:11,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:10:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2023-11-23 07:10:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784166385] [2023-11-23 07:10:11,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:10:11,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:10:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:10:11,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:10:11,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:10:11,780 INFO L87 Difference]: Start difference. First operand 284 states and 393 transitions. Second operand has 9 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:10:12,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:12,425 INFO L93 Difference]: Finished difference Result 535 states and 747 transitions. [2023-11-23 07:10:12,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:10:12,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 152 [2023-11-23 07:10:12,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:12,427 INFO L225 Difference]: With dead ends: 535 [2023-11-23 07:10:12,427 INFO L226 Difference]: Without dead ends: 292 [2023-11-23 07:10:12,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:10:12,428 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 13 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:12,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1839 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:10:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-23 07:10:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2023-11-23 07:10:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 194 states have (on average 1.2938144329896908) internal successors, (251), 202 states have internal predecessors, (251), 70 states have call successors, (70), 21 states have call predecessors, (70), 23 states have return successors, (78), 64 states have call predecessors, (78), 64 states have call successors, (78) [2023-11-23 07:10:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 399 transitions. [2023-11-23 07:10:12,447 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 399 transitions. Word has length 152 [2023-11-23 07:10:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:12,448 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 399 transitions. [2023-11-23 07:10:12,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:10:12,448 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 399 transitions. [2023-11-23 07:10:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-23 07:10:12,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:12,449 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:12,466 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 07:10:12,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:12,666 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:12,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:12,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1207225613, now seen corresponding path program 1 times [2023-11-23 07:10:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:12,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480906106] [2023-11-23 07:10:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:12,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:10:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:10:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:10:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:10:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:10:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:10:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:10:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:10:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:10:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:10:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-23 07:10:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:10:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 07:10:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 07:10:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:10:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 07:10:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 07:10:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-11-23 07:10:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480906106] [2023-11-23 07:10:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480906106] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216746286] [2023-11-23 07:10:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:13,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:13,866 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:13,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 07:10:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:14,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 07:10:14,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:10:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-23 07:10:14,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:10:14,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216746286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:10:14,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:10:14,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2023-11-23 07:10:14,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495413703] [2023-11-23 07:10:14,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:10:14,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:10:14,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:10:14,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:10:14,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:10:14,579 INFO L87 Difference]: Start difference. First operand 288 states and 399 transitions. Second operand has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:10:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:15,528 INFO L93 Difference]: Finished difference Result 523 states and 727 transitions. [2023-11-23 07:10:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:10:15,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 154 [2023-11-23 07:10:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:15,530 INFO L225 Difference]: With dead ends: 523 [2023-11-23 07:10:15,530 INFO L226 Difference]: Without dead ends: 292 [2023-11-23 07:10:15,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-11-23 07:10:15,531 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 13 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:15,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1837 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 07:10:15,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-23 07:10:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2023-11-23 07:10:15,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 194 states have (on average 1.2938144329896908) internal successors, (251), 202 states have internal predecessors, (251), 70 states have call successors, (70), 21 states have call predecessors, (70), 23 states have return successors, (77), 64 states have call predecessors, (77), 64 states have call successors, (77) [2023-11-23 07:10:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 398 transitions. [2023-11-23 07:10:15,555 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 398 transitions. Word has length 154 [2023-11-23 07:10:15,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:15,556 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 398 transitions. [2023-11-23 07:10:15,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:10:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 398 transitions. [2023-11-23 07:10:15,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-23 07:10:15,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:15,558 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:15,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 07:10:15,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 07:10:15,798 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:15,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:15,798 INFO L85 PathProgramCache]: Analyzing trace with hash 802601208, now seen corresponding path program 1 times [2023-11-23 07:10:15,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:15,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664871036] [2023-11-23 07:10:15,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:15,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:10:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:10:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:10:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:10:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:10:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:10:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:10:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:10:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:10:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:10:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:10:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:10:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:10:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:10:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:10:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:10:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 07:10:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:10:17,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:17,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664871036] [2023-11-23 07:10:17,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664871036] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:17,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439440313] [2023-11-23 07:10:17,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:17,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:17,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:17,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:17,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 07:10:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:18,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 3177 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 07:10:18,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:10:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-23 07:10:18,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:10:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439440313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:10:18,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:10:18,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-11-23 07:10:18,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888274615] [2023-11-23 07:10:18,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:10:18,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 07:10:18,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:10:18,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 07:10:18,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:10:18,463 INFO L87 Difference]: Start difference. First operand 288 states and 398 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:10:19,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:19,022 INFO L93 Difference]: Finished difference Result 570 states and 802 transitions. [2023-11-23 07:10:19,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:10:19,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2023-11-23 07:10:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:19,024 INFO L225 Difference]: With dead ends: 570 [2023-11-23 07:10:19,025 INFO L226 Difference]: Without dead ends: 323 [2023-11-23 07:10:19,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:10:19,026 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 41 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:19,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 928 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:10:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-23 07:10:19,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 300. [2023-11-23 07:10:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 206 states have (on average 1.2912621359223302) internal successors, (266), 214 states have internal predecessors, (266), 70 states have call successors, (70), 21 states have call predecessors, (70), 23 states have return successors, (77), 64 states have call predecessors, (77), 64 states have call successors, (77) [2023-11-23 07:10:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 413 transitions. [2023-11-23 07:10:19,046 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 413 transitions. Word has length 156 [2023-11-23 07:10:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:19,046 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 413 transitions. [2023-11-23 07:10:19,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:10:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 413 transitions. [2023-11-23 07:10:19,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-23 07:10:19,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:19,048 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:19,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 07:10:19,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 07:10:19,265 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:19,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2072520052, now seen corresponding path program 1 times [2023-11-23 07:10:19,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:19,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454841768] [2023-11-23 07:10:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:19,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:10:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:10:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:10:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:10:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:10:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:10:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:10:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:10:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:10:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:10:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:10:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:10:19,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:10:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:10:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:10:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:10:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 07:10:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-23 07:10:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454841768] [2023-11-23 07:10:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454841768] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317521031] [2023-11-23 07:10:19,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:19,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:19,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:19,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 07:10:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:20,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 3167 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:10:20,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:10:20,507 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-23 07:10:20,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:10:20,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317521031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:10:20,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:10:20,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-23 07:10:20,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722636573] [2023-11-23 07:10:20,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:10:20,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:10:20,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:10:20,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:10:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:10:20,511 INFO L87 Difference]: Start difference. First operand 300 states and 413 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:10:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:20,740 INFO L93 Difference]: Finished difference Result 572 states and 796 transitions. [2023-11-23 07:10:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:10:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 156 [2023-11-23 07:10:20,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:20,742 INFO L225 Difference]: With dead ends: 572 [2023-11-23 07:10:20,742 INFO L226 Difference]: Without dead ends: 313 [2023-11-23 07:10:20,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:10:20,744 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 9 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:20,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 728 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 07:10:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-23 07:10:20,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 304. [2023-11-23 07:10:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 218 states have internal predecessors, (270), 70 states have call successors, (70), 21 states have call predecessors, (70), 23 states have return successors, (77), 64 states have call predecessors, (77), 64 states have call successors, (77) [2023-11-23 07:10:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 417 transitions. [2023-11-23 07:10:20,763 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 417 transitions. Word has length 156 [2023-11-23 07:10:20,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:20,765 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 417 transitions. [2023-11-23 07:10:20,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:10:20,765 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 417 transitions. [2023-11-23 07:10:20,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-23 07:10:20,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:20,766 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:20,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 07:10:20,982 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,SelfDestructingSolverStorable13 [2023-11-23 07:10:20,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:20,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:20,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1446921732, now seen corresponding path program 1 times [2023-11-23 07:10:20,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:20,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774148246] [2023-11-23 07:10:20,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:20,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:10:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:10:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:10:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:10:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:10:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:10:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:10:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:10:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:10:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:10:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:10:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:10:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:10:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:10:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:10:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:10:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 07:10:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:24,535 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 17 proven. 20 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 07:10:24,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774148246] [2023-11-23 07:10:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774148246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192470035] [2023-11-23 07:10:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:24,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:24,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:24,544 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:24,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 07:10:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:25,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 3171 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-23 07:10:25,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:10:25,278 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-23 07:10:25,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 07:10:26,399 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-23 07:10:26,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 13 [2023-11-23 07:10:26,629 INFO L349 Elim1Store]: treesize reduction 112, result has 24.8 percent of original size [2023-11-23 07:10:26,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 34 treesize of output 52 [2023-11-23 07:10:27,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 07:10:27,415 INFO L349 Elim1Store]: treesize reduction 112, result has 24.8 percent of original size [2023-11-23 07:10:27,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 34 treesize of output 52 [2023-11-23 07:10:27,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 07:10:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:10:27,522 INFO L349 Elim1Store]: treesize reduction 200, result has 20.9 percent of original size [2023-11-23 07:10:27,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 44 treesize of output 71 [2023-11-23 07:10:27,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-11-23 07:10:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:10:27,873 INFO L349 Elim1Store]: treesize reduction 200, result has 20.9 percent of original size [2023-11-23 07:10:27,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 44 treesize of output 71 [2023-11-23 07:10:27,936 INFO L349 Elim1Store]: treesize reduction 112, result has 24.8 percent of original size [2023-11-23 07:10:27,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 34 treesize of output 52 [2023-11-23 07:10:27,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-11-23 07:10:30,286 INFO L349 Elim1Store]: treesize reduction 112, result has 24.8 percent of original size [2023-11-23 07:10:30,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 34 treesize of output 52 [2023-11-23 07:10:30,879 INFO L349 Elim1Store]: treesize reduction 48, result has 26.2 percent of original size [2023-11-23 07:10:30,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 26 treesize of output 32 [2023-11-23 07:10:30,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-23 07:10:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 29 proven. 43 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-23 07:10:31,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:10:31,726 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1609 (Array Int Int))) (let ((.cse0 (select (select (store |c_#memory_int#9| |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_ArrVal_1609) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (< .cse0 (+ (* 18446744073709551616 (div .cse0 18446744073709551616)) 1)))) is different from false [2023-11-23 07:10:31,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192470035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:31,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:10:31,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 22] total 48 [2023-11-23 07:10:31,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378117552] [2023-11-23 07:10:31,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 07:10:31,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-23 07:10:31,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:10:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-23 07:10:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2359, Unknown=3, NotChecked=98, Total=2652 [2023-11-23 07:10:31,847 INFO L87 Difference]: Start difference. First operand 304 states and 417 transitions. Second operand has 48 states, 40 states have (on average 3.275) internal successors, (131), 44 states have internal predecessors, (131), 20 states have call successors, (43), 11 states have call predecessors, (43), 13 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2023-11-23 07:10:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:10:58,717 INFO L93 Difference]: Finished difference Result 990 states and 1339 transitions. [2023-11-23 07:10:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-11-23 07:10:58,718 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 40 states have (on average 3.275) internal successors, (131), 44 states have internal predecessors, (131), 20 states have call successors, (43), 11 states have call predecessors, (43), 13 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) Word has length 156 [2023-11-23 07:10:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:10:58,720 INFO L225 Difference]: With dead ends: 990 [2023-11-23 07:10:58,720 INFO L226 Difference]: Without dead ends: 712 [2023-11-23 07:10:58,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 165 SyntacticMatches, 34 SemanticMatches, 102 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3927 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=1176, Invalid=9331, Unknown=3, NotChecked=202, Total=10712 [2023-11-23 07:10:58,727 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1563 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 6716 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 7355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 6716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:10:58,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 2467 Invalid, 7355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [639 Valid, 6716 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-11-23 07:10:58,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-11-23 07:10:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 545. [2023-11-23 07:10:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 381 states have (on average 1.2598425196850394) internal successors, (480), 390 states have internal predecessors, (480), 118 states have call successors, (118), 44 states have call predecessors, (118), 45 states have return successors, (119), 110 states have call predecessors, (119), 109 states have call successors, (119) [2023-11-23 07:10:58,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 717 transitions. [2023-11-23 07:10:58,836 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 717 transitions. Word has length 156 [2023-11-23 07:10:58,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:10:58,837 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 717 transitions. [2023-11-23 07:10:58,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 40 states have (on average 3.275) internal successors, (131), 44 states have internal predecessors, (131), 20 states have call successors, (43), 11 states have call predecessors, (43), 13 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2023-11-23 07:10:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 717 transitions. [2023-11-23 07:10:58,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-23 07:10:58,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:10:58,838 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:10:58,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 07:10:59,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 07:10:59,043 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:10:59,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:10:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash -651280636, now seen corresponding path program 2 times [2023-11-23 07:10:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:10:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134183929] [2023-11-23 07:10:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:10:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:10:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:10:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 07:10:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:10:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:10:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:10:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-23 07:10:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 07:10:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:10:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:10:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:10:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-23 07:10:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:10:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-23 07:10:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 07:10:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-23 07:10:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:10:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:10:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 07:10:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 07:10:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:10:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-23 07:10:59,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:10:59,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134183929] [2023-11-23 07:10:59,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134183929] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:10:59,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181575502] [2023-11-23 07:10:59,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 07:10:59,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:10:59,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:10:59,984 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:10:59,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 07:11:00,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 07:11:00,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 07:11:00,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 07:11:00,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-23 07:11:00,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:00,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181575502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:00,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:00,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 12 [2023-11-23 07:11:00,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697247415] [2023-11-23 07:11:00,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:01,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:11:01,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:01,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:11:01,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:11:01,009 INFO L87 Difference]: Start difference. First operand 545 states and 717 transitions. Second operand has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:11:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:01,802 INFO L93 Difference]: Finished difference Result 887 states and 1174 transitions. [2023-11-23 07:11:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:11:01,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2023-11-23 07:11:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:01,807 INFO L225 Difference]: With dead ends: 887 [2023-11-23 07:11:01,807 INFO L226 Difference]: Without dead ends: 566 [2023-11-23 07:11:01,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:01,809 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 13 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:01,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1920 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 07:11:01,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-23 07:11:01,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 545. [2023-11-23 07:11:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 381 states have (on average 1.2572178477690288) internal successors, (479), 390 states have internal predecessors, (479), 118 states have call successors, (118), 44 states have call predecessors, (118), 45 states have return successors, (119), 110 states have call predecessors, (119), 109 states have call successors, (119) [2023-11-23 07:11:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 716 transitions. [2023-11-23 07:11:01,862 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 716 transitions. Word has length 160 [2023-11-23 07:11:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:01,863 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 716 transitions. [2023-11-23 07:11:01,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:11:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 716 transitions. [2023-11-23 07:11:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 07:11:01,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:01,869 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:01,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:02,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:02,087 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:02,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:02,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1881527779, now seen corresponding path program 1 times [2023-11-23 07:11:02,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:02,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396255753] [2023-11-23 07:11:02,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:02,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:11:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:11:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:04,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:11:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:11:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-23 07:11:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:11:04,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:04,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396255753] [2023-11-23 07:11:04,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396255753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:04,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:11:04,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-11-23 07:11:04,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033800070] [2023-11-23 07:11:04,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:04,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 07:11:04,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 07:11:04,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2023-11-23 07:11:04,518 INFO L87 Difference]: Start difference. First operand 545 states and 716 transitions. Second operand has 21 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 8 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-23 07:11:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:10,581 INFO L93 Difference]: Finished difference Result 822 states and 1101 transitions. [2023-11-23 07:11:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 07:11:10,581 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 8 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 168 [2023-11-23 07:11:10,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:10,587 INFO L225 Difference]: With dead ends: 822 [2023-11-23 07:11:10,587 INFO L226 Difference]: Without dead ends: 593 [2023-11-23 07:11:10,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=226, Invalid=1334, Unknown=0, NotChecked=0, Total=1560 [2023-11-23 07:11:10,605 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 439 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:10,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 1558 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-23 07:11:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2023-11-23 07:11:10,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 557. [2023-11-23 07:11:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 392 states have (on average 1.260204081632653) internal successors, (494), 402 states have internal predecessors, (494), 119 states have call successors, (119), 44 states have call predecessors, (119), 45 states have return successors, (120), 110 states have call predecessors, (120), 110 states have call successors, (120) [2023-11-23 07:11:10,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 733 transitions. [2023-11-23 07:11:10,715 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 733 transitions. Word has length 168 [2023-11-23 07:11:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:10,716 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 733 transitions. [2023-11-23 07:11:10,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.55) internal successors, (71), 18 states have internal predecessors, (71), 8 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-23 07:11:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 733 transitions. [2023-11-23 07:11:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-23 07:11:10,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:10,719 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:10,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 07:11:10,719 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:10,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1760528983, now seen corresponding path program 1 times [2023-11-23 07:11:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:10,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431951925] [2023-11-23 07:11:10,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:10,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 07:11:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:11:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:11:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:11:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:11:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 07:11:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 07:11:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-23 07:11:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-11-23 07:11:11,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:11,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431951925] [2023-11-23 07:11:11,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431951925] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:11,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343721427] [2023-11-23 07:11:11,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:11,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:11,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:11,844 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:11,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 07:11:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:12,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-23 07:11:12,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:12,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:11:12,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-23 07:11:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-23 07:11:12,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:12,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343721427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:12,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:12,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2023-11-23 07:11:12,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535682437] [2023-11-23 07:11:12,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:12,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:11:12,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:12,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:11:12,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:12,870 INFO L87 Difference]: Start difference. First operand 557 states and 733 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:11:15,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:15,519 INFO L93 Difference]: Finished difference Result 1359 states and 1792 transitions. [2023-11-23 07:11:15,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 07:11:15,520 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2023-11-23 07:11:15,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:15,532 INFO L225 Difference]: With dead ends: 1359 [2023-11-23 07:11:15,532 INFO L226 Difference]: Without dead ends: 1022 [2023-11-23 07:11:15,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-11-23 07:11:15,542 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 254 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:15,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1248 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 07:11:15,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-11-23 07:11:15,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 852. [2023-11-23 07:11:15,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 852 states, 588 states have (on average 1.2346938775510203) internal successors, (726), 604 states have internal predecessors, (726), 189 states have call successors, (189), 72 states have call predecessors, (189), 74 states have return successors, (197), 175 states have call predecessors, (197), 177 states have call successors, (197) [2023-11-23 07:11:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1112 transitions. [2023-11-23 07:11:15,645 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1112 transitions. Word has length 162 [2023-11-23 07:11:15,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:15,645 INFO L495 AbstractCegarLoop]: Abstraction has 852 states and 1112 transitions. [2023-11-23 07:11:15,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 07:11:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1112 transitions. [2023-11-23 07:11:15,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-23 07:11:15,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:15,648 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:15,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:15,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 07:11:15,869 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:15,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:15,869 INFO L85 PathProgramCache]: Analyzing trace with hash 133804903, now seen corresponding path program 1 times [2023-11-23 07:11:15,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:15,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772130283] [2023-11-23 07:11:15,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:11:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-23 07:11:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-23 07:11:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-23 07:11:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 07:11:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-23 07:11:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 07:11:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 07:11:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 07:11:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-23 07:11:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2023-11-23 07:11:16,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:16,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772130283] [2023-11-23 07:11:16,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772130283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:16,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776440788] [2023-11-23 07:11:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:16,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:16,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:16,324 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:16,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 07:11:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:16,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 07:11:16,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-23 07:11:16,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:16,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776440788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:16,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:16,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-23 07:11:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949850680] [2023-11-23 07:11:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:16,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:11:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:11:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:11:16,983 INFO L87 Difference]: Start difference. First operand 852 states and 1112 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:11:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:17,522 INFO L93 Difference]: Finished difference Result 1503 states and 1985 transitions. [2023-11-23 07:11:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:11:17,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-11-23 07:11:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:17,526 INFO L225 Difference]: With dead ends: 1503 [2023-11-23 07:11:17,526 INFO L226 Difference]: Without dead ends: 840 [2023-11-23 07:11:17,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:11:17,528 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 6 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:17,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 734 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 07:11:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2023-11-23 07:11:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 798. [2023-11-23 07:11:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 558 states have (on average 1.2347670250896057) internal successors, (689), 573 states have internal predecessors, (689), 170 states have call successors, (170), 67 states have call predecessors, (170), 69 states have return successors, (173), 157 states have call predecessors, (173), 158 states have call successors, (173) [2023-11-23 07:11:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1032 transitions. [2023-11-23 07:11:17,657 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1032 transitions. Word has length 162 [2023-11-23 07:11:17,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:17,657 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1032 transitions. [2023-11-23 07:11:17,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:11:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1032 transitions. [2023-11-23 07:11:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-23 07:11:17,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:17,659 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:17,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:17,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:17,876 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:17,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1765792651, now seen corresponding path program 1 times [2023-11-23 07:11:17,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:17,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793864785] [2023-11-23 07:11:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:17,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:11:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:11:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 07:11:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:11:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:11:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:11:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:11:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:11:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:11:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:11:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:11:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 07:11:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-23 07:11:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 07:11:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-23 07:11:18,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:18,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793864785] [2023-11-23 07:11:18,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793864785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:18,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:11:18,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:11:18,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660840978] [2023-11-23 07:11:18,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:18,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:11:18,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:18,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:11:18,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:11:18,507 INFO L87 Difference]: Start difference. First operand 798 states and 1032 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:11:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:20,612 INFO L93 Difference]: Finished difference Result 1240 states and 1621 transitions. [2023-11-23 07:11:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:11:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2023-11-23 07:11:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:20,620 INFO L225 Difference]: With dead ends: 1240 [2023-11-23 07:11:20,623 INFO L226 Difference]: Without dead ends: 809 [2023-11-23 07:11:20,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:11:20,626 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 197 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:20,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 509 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 07:11:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-23 07:11:20,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 794. [2023-11-23 07:11:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 556 states have (on average 1.2302158273381294) internal successors, (684), 569 states have internal predecessors, (684), 170 states have call successors, (170), 67 states have call predecessors, (170), 67 states have return successors, (171), 157 states have call predecessors, (171), 158 states have call successors, (171) [2023-11-23 07:11:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1025 transitions. [2023-11-23 07:11:20,895 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1025 transitions. Word has length 173 [2023-11-23 07:11:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:20,895 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1025 transitions. [2023-11-23 07:11:20,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 07:11:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1025 transitions. [2023-11-23 07:11:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-23 07:11:20,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:20,897 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:20,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 07:11:20,897 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:20,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1621628326, now seen corresponding path program 1 times [2023-11-23 07:11:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:20,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917296721] [2023-11-23 07:11:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:11:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:11:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 07:11:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:11:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:11:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:11:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:11:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:11:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:11:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:11:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:11:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-23 07:11:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-23 07:11:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 07:11:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-11-23 07:11:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:21,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917296721] [2023-11-23 07:11:21,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917296721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:21,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:11:21,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:11:21,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685838846] [2023-11-23 07:11:21,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:21,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:11:21,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:21,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:11:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:11:21,843 INFO L87 Difference]: Start difference. First operand 794 states and 1025 transitions. Second operand has 10 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 07:11:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:25,378 INFO L93 Difference]: Finished difference Result 841 states and 1093 transitions. [2023-11-23 07:11:25,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:11:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 175 [2023-11-23 07:11:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:25,382 INFO L225 Difference]: With dead ends: 841 [2023-11-23 07:11:25,382 INFO L226 Difference]: Without dead ends: 839 [2023-11-23 07:11:25,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:11:25,383 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 172 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:25,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1073 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 07:11:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-11-23 07:11:25,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 809. [2023-11-23 07:11:25,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 565 states have (on average 1.2265486725663717) internal successors, (693), 578 states have internal predecessors, (693), 173 states have call successors, (173), 70 states have call predecessors, (173), 70 states have return successors, (174), 160 states have call predecessors, (174), 161 states have call successors, (174) [2023-11-23 07:11:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1040 transitions. [2023-11-23 07:11:25,474 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1040 transitions. Word has length 175 [2023-11-23 07:11:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:25,474 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1040 transitions. [2023-11-23 07:11:25,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 07:11:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1040 transitions. [2023-11-23 07:11:25,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 07:11:25,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:25,476 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:25,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 07:11:25,477 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:25,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2051164135, now seen corresponding path program 1 times [2023-11-23 07:11:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21144164] [2023-11-23 07:11:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:11:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:11:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:11:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:11:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 07:11:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-23 07:11:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-23 07:11:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-23 07:11:26,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21144164] [2023-11-23 07:11:26,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21144164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:26,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:11:26,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:11:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572509350] [2023-11-23 07:11:26,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:26,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:11:26,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:26,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:11:26,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:11:26,469 INFO L87 Difference]: Start difference. First operand 809 states and 1040 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 07:11:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:29,412 INFO L93 Difference]: Finished difference Result 1145 states and 1493 transitions. [2023-11-23 07:11:29,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:11:29,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 169 [2023-11-23 07:11:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:29,419 INFO L225 Difference]: With dead ends: 1145 [2023-11-23 07:11:29,420 INFO L226 Difference]: Without dead ends: 819 [2023-11-23 07:11:29,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:11:29,422 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 192 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:29,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 741 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 07:11:29,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2023-11-23 07:11:29,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 789. [2023-11-23 07:11:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 549 states have (on average 1.2240437158469946) internal successors, (672), 562 states have internal predecessors, (672), 171 states have call successors, (171), 68 states have call predecessors, (171), 68 states have return successors, (170), 158 states have call predecessors, (170), 159 states have call successors, (170) [2023-11-23 07:11:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1013 transitions. [2023-11-23 07:11:29,603 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1013 transitions. Word has length 169 [2023-11-23 07:11:29,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:29,603 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1013 transitions. [2023-11-23 07:11:29,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 07:11:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1013 transitions. [2023-11-23 07:11:29,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 07:11:29,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:29,659 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:29,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 07:11:29,659 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:29,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1049736075, now seen corresponding path program 1 times [2023-11-23 07:11:29,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:29,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230303540] [2023-11-23 07:11:29,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:29,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:11:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:11:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 07:11:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:11:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:11:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:11:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:11:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:11:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:11:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:11:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:11:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-11-23 07:11:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-23 07:11:31,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:31,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230303540] [2023-11-23 07:11:31,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230303540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:31,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534569654] [2023-11-23 07:11:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:31,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:31,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:31,521 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:31,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 07:11:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:32,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-23 07:11:32,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:32,323 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 17 treesize of output 9 [2023-11-23 07:11:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-23 07:11:32,343 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:32,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534569654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:32,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:32,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2023-11-23 07:11:32,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837699833] [2023-11-23 07:11:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:32,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:11:32,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:32,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:11:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:11:32,344 INFO L87 Difference]: Start difference. First operand 789 states and 1013 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:33,058 INFO L93 Difference]: Finished difference Result 1031 states and 1331 transitions. [2023-11-23 07:11:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:11:33,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2023-11-23 07:11:33,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:33,061 INFO L225 Difference]: With dead ends: 1031 [2023-11-23 07:11:33,061 INFO L226 Difference]: Without dead ends: 791 [2023-11-23 07:11:33,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-23 07:11:33,063 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 20 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:33,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1102 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 07:11:33,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-11-23 07:11:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 789. [2023-11-23 07:11:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 549 states have (on average 1.2222222222222223) internal successors, (671), 562 states have internal predecessors, (671), 171 states have call successors, (171), 68 states have call predecessors, (171), 68 states have return successors, (170), 158 states have call predecessors, (170), 159 states have call successors, (170) [2023-11-23 07:11:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1012 transitions. [2023-11-23 07:11:33,144 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1012 transitions. Word has length 179 [2023-11-23 07:11:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:33,144 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1012 transitions. [2023-11-23 07:11:33,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-23 07:11:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1012 transitions. [2023-11-23 07:11:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 07:11:33,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:33,146 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:33,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:33,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:33,361 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:33,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash -685326916, now seen corresponding path program 1 times [2023-11-23 07:11:33,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:33,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37477747] [2023-11-23 07:11:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:33,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:11:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:11:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:11:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:11:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-23 07:11:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-11-23 07:11:35,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37477747] [2023-11-23 07:11:35,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37477747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:35,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833213204] [2023-11-23 07:11:35,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:35,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:35,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:35,954 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:35,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 07:11:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:37,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-23 07:11:37,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:37,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-11-23 07:11:37,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-11-23 07:11:37,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 07:11:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-23 07:11:37,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:37,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833213204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:37,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:37,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [21] total 35 [2023-11-23 07:11:37,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090935568] [2023-11-23 07:11:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:37,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 07:11:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 07:11:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1069, Unknown=0, NotChecked=0, Total=1190 [2023-11-23 07:11:37,678 INFO L87 Difference]: Start difference. First operand 789 states and 1012 transitions. Second operand has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-23 07:11:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:42,112 INFO L93 Difference]: Finished difference Result 1644 states and 2157 transitions. [2023-11-23 07:11:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-11-23 07:11:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) Word has length 169 [2023-11-23 07:11:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:42,117 INFO L225 Difference]: With dead ends: 1644 [2023-11-23 07:11:42,117 INFO L226 Difference]: Without dead ends: 1259 [2023-11-23 07:11:42,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=531, Invalid=3891, Unknown=0, NotChecked=0, Total=4422 [2023-11-23 07:11:42,119 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 840 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 2537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:42,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1376 Invalid, 2537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 07:11:42,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-11-23 07:11:42,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 871. [2023-11-23 07:11:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 611 states have (on average 1.2242225859247136) internal successors, (748), 625 states have internal predecessors, (748), 185 states have call successors, (185), 74 states have call predecessors, (185), 74 states have return successors, (188), 171 states have call predecessors, (188), 173 states have call successors, (188) [2023-11-23 07:11:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1121 transitions. [2023-11-23 07:11:42,255 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1121 transitions. Word has length 169 [2023-11-23 07:11:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:42,257 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1121 transitions. [2023-11-23 07:11:42,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 8 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-23 07:11:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1121 transitions. [2023-11-23 07:11:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-23 07:11:42,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:42,263 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:42,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:42,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:42,476 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:42,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:42,476 INFO L85 PathProgramCache]: Analyzing trace with hash 861447625, now seen corresponding path program 1 times [2023-11-23 07:11:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102734735] [2023-11-23 07:11:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:11:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 07:11:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 07:11:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 07:11:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 07:11:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 07:11:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-23 07:11:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-23 07:11:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 07:11:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:11:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-23 07:11:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-23 07:11:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 07:11:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 07:11:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-23 07:11:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 07:11:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 07:11:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2023-11-23 07:11:43,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102734735] [2023-11-23 07:11:43,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102734735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:43,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794397807] [2023-11-23 07:11:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:43,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:43,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:43,880 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:43,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 07:11:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:44,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 3283 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 07:11:44,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 07:11:44,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:11:44,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794397807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:11:44,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:11:44,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-23 07:11:44,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460816705] [2023-11-23 07:11:44,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:11:44,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:11:44,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:44,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:11:44,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:11:44,674 INFO L87 Difference]: Start difference. First operand 871 states and 1121 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:11:45,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:11:45,272 INFO L93 Difference]: Finished difference Result 1141 states and 1473 transitions. [2023-11-23 07:11:45,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:11:45,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 170 [2023-11-23 07:11:45,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:11:45,295 INFO L225 Difference]: With dead ends: 1141 [2023-11-23 07:11:45,295 INFO L226 Difference]: Without dead ends: 880 [2023-11-23 07:11:45,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:11:45,297 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 9 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 07:11:45,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 694 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 07:11:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-11-23 07:11:45,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 879. [2023-11-23 07:11:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 619 states have (on average 1.2261712439418417) internal successors, (759), 633 states have internal predecessors, (759), 185 states have call successors, (185), 74 states have call predecessors, (185), 74 states have return successors, (188), 171 states have call predecessors, (188), 173 states have call successors, (188) [2023-11-23 07:11:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1132 transitions. [2023-11-23 07:11:45,414 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1132 transitions. Word has length 170 [2023-11-23 07:11:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:11:45,414 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1132 transitions. [2023-11-23 07:11:45,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 07:11:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1132 transitions. [2023-11-23 07:11:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-23 07:11:45,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:11:45,417 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:11:45,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 07:11:45,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:45,634 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:11:45,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:11:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash -803601374, now seen corresponding path program 1 times [2023-11-23 07:11:45,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:11:45,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487511336] [2023-11-23 07:11:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:45,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:11:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:11:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:11:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 07:11:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 07:11:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-23 07:11:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:11:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 07:11:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 07:11:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 07:11:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 07:11:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 07:11:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-23 07:11:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-23 07:11:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-23 07:11:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 07:11:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-23 07:11:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 07:11:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 07:11:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-23 07:11:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-23 07:11:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-23 07:11:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:11:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487511336] [2023-11-23 07:11:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487511336] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:11:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530091204] [2023-11-23 07:11:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:11:47,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:11:47,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:11:47,106 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:11:47,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 07:11:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:11:47,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 3318 conjuncts, 91 conjunts are in the unsatisfiable core [2023-11-23 07:11:47,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:11:48,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-23 07:11:48,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 07:11:48,675 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 8 treesize of output 4 [2023-11-23 07:11:49,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 07:11:49,505 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 17 treesize of output 9 [2023-11-23 07:11:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 41 proven. 118 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-23 07:11:49,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:11:50,292 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 12 treesize of output 8 [2023-11-23 07:11:50,295 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 41 treesize of output 29 [2023-11-23 07:11:50,400 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 32 treesize of output 26 [2023-11-23 07:11:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-23 07:11:50,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530091204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:11:50,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:11:50,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 18] total 45 [2023-11-23 07:11:50,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754947015] [2023-11-23 07:11:50,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:11:50,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-11-23 07:11:50,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:11:50,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-11-23 07:11:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1834, Unknown=0, NotChecked=0, Total=1980 [2023-11-23 07:11:50,564 INFO L87 Difference]: Start difference. First operand 879 states and 1132 transitions. Second operand has 45 states, 41 states have (on average 5.121951219512195) internal successors, (210), 37 states have internal predecessors, (210), 19 states have call successors, (64), 12 states have call predecessors, (64), 12 states have return successors, (60), 20 states have call predecessors, (60), 19 states have call successors, (60) [2023-11-23 07:11:54,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:11:57,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:00,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:05,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:07,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:09,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:12,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:17,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:22,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:24,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:26,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:29,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:31,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:33,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:35,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:38,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:40,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:42,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:45,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:48,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:50,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:52,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:54,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:56,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:12:58,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:01,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:04,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:06,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:08,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:11,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:13,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:15,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:17,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 07:13:21,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15