./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 33f04dab09d27addfaad360c2ed36130d300e65794077e73485bba8698f4311c --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 08:13:09,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 08:13:09,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 08:13:09,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 08:13:09,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 08:13:09,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 08:13:09,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 08:13:09,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 08:13:09,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 08:13:09,834 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 08:13:09,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 08:13:09,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 08:13:09,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 08:13:09,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 08:13:09,836 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 08:13:09,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 08:13:09,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 08:13:09,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 08:13:09,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 08:13:09,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 08:13:09,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 08:13:09,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 08:13:09,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 08:13:09,838 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 08:13:09,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 08:13:09,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 08:13:09,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 08:13:09,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 08:13:09,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:13:09,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 08:13:09,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 08:13:09,841 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 08:13:09,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 08:13:09,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33f04dab09d27addfaad360c2ed36130d300e65794077e73485bba8698f4311c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 08:13:10,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 08:13:10,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 08:13:10,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 08:13:10,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 08:13:10,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 08:13:10,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i [2023-11-23 08:13:11,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 08:13:11,420 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 08:13:11,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i [2023-11-23 08:13:11,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15ca1f3b/8b5b4bda316c4e8290899a7854ba2f17/FLAGb01e41007 [2023-11-23 08:13:11,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15ca1f3b/8b5b4bda316c4e8290899a7854ba2f17 [2023-11-23 08:13:11,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 08:13:11,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 08:13:11,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 08:13:11,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 08:13:11,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 08:13:11,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:11" (1/1) ... [2023-11-23 08:13:11,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c1df31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:11, skipping insertion in model container [2023-11-23 08:13:11,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:13:11" (1/1) ... [2023-11-23 08:13:11,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 08:13:11,748 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i[4501,4514] [2023-11-23 08:13:11,754 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i[4561,4574] [2023-11-23 08:13:12,231 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,232 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,233 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,234 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,249 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,250 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,251 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,251 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,418 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:13:12,419 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:13:12,420 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:13:12,420 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:13:12,421 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:13:12,422 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:13:12,422 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:13:12,423 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:13:12,423 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:13:12,423 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:13:12,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,614 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:13:12,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 08:13:12,739 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i[4501,4514] [2023-11-23 08:13:12,740 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_ignore_case_harness_negated.i[4561,4574] [2023-11-23 08:13:12,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,765 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,766 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,767 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,774 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,774 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,777 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,777 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,812 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 08:13:12,813 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 08:13:12,813 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 08:13:12,813 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 08:13:12,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 08:13:12,814 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 08:13:12,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 08:13:12,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 08:13:12,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 08:13:12,815 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 08:13:12,877 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2023-11-23 08:13:12,879 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,879 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 08:13:12,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2023-11-23 08:13:12,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,064 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,065 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,066 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,066 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,066 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,066 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,067 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:13:13,072 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:13:13,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13 WrapperNode [2023-11-23 08:13:13,073 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:13:13,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:13:13,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:13:13,074 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:13:13,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,137 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,220 INFO L138 Inliner]: procedures = 690, calls = 2664, calls flagged for inlining = 59, calls inlined = 5, statements flattened = 861 [2023-11-23 08:13:13,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:13:13,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:13:13,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:13:13,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:13:13,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:13:13,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:13:13,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:13:13,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:13:13,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (1/1) ... [2023-11-23 08:13:13,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:13:13,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:13,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 08:13:13,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 08:13:13,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 08:13:13,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 08:13:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_ignore_case [2023-11-23 08:13:13,398 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_ignore_case [2023-11-23 08:13:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 08:13:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:13:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:13:13,399 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 08:13:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 08:13:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:13:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 08:13:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 08:13:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:13:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:13:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 08:13:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 08:13:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 08:13:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 08:13:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:13:13,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:13:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:13:13,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:13:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:13:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 08:13:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 08:13:13,402 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-23 08:13:13,402 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-23 08:13:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 08:13:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-23 08:13:13,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-23 08:13:13,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:13:13,641 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:13:13,643 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:13:14,311 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:13:14,416 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:13:14,416 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 08:13:14,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:14 BoogieIcfgContainer [2023-11-23 08:13:14,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:13:14,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:13:14,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:13:14,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:13:14,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:13:11" (1/3) ... [2023-11-23 08:13:14,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38fe2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:13:14, skipping insertion in model container [2023-11-23 08:13:14,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:13:13" (2/3) ... [2023-11-23 08:13:14,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c38fe2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:13:14, skipping insertion in model container [2023-11-23 08:13:14,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:13:14" (3/3) ... [2023-11-23 08:13:14,427 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_ignore_case_harness_negated.i [2023-11-23 08:13:14,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:13:14,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 08:13:14,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:13:14,490 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;@7d96e40d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:13:14,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 08:13:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 75 states have internal predecessors, (95), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-23 08:13:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 08:13:14,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:14,505 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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] [2023-11-23 08:13:14,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:14,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:14,511 INFO L85 PathProgramCache]: Analyzing trace with hash 559614009, now seen corresponding path program 1 times [2023-11-23 08:13:14,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:14,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120356522] [2023-11-23 08:13:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:14,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 08:13:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:13:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 08:13:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:13:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:13:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 08:13:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 08:13:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 08:13:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 08:13:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 08:13:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-23 08:13:15,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:15,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120356522] [2023-11-23 08:13:15,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120356522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:13:15,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:13:15,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 08:13:15,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3631541] [2023-11-23 08:13:15,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:13:15,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:13:15,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:13:15,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:13:15,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:13:15,309 INFO L87 Difference]: Start difference. First operand has 130 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 75 states have internal predecessors, (95), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 08:13:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:13:15,985 INFO L93 Difference]: Finished difference Result 259 states and 385 transitions. [2023-11-23 08:13:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:13:15,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 103 [2023-11-23 08:13:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:13:15,995 INFO L225 Difference]: With dead ends: 259 [2023-11-23 08:13:15,995 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 08:13:15,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:13:16,001 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 146 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 08:13:16,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 118 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 08:13:16,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 08:13:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-11-23 08:13:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 74 states have internal predecessors, (91), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-23 08:13:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2023-11-23 08:13:16,040 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 103 [2023-11-23 08:13:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:13:16,040 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2023-11-23 08:13:16,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 08:13:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2023-11-23 08:13:16,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 08:13:16,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:16,043 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 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] [2023-11-23 08:13:16,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 08:13:16,044 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:16,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash -197554505, now seen corresponding path program 1 times [2023-11-23 08:13:16,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:16,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830119952] [2023-11-23 08:13:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:16,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 08:13:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:13:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 08:13:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:13:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:13:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 08:13:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 08:13:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 08:13:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 08:13:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 08:13:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-23 08:13:16,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:16,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830119952] [2023-11-23 08:13:16,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830119952] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:13:16,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192478637] [2023-11-23 08:13:16,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:16,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:16,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:16,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:13:16,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 08:13:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:17,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 2751 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 08:13:17,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:13:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-23 08:13:17,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:13:17,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192478637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:13:17,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:13:17,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 08:13:17,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945202858] [2023-11-23 08:13:17,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:13:17,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 08:13:17,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:13:17,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 08:13:17,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 08:13:17,371 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 08:13:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:13:17,646 INFO L93 Difference]: Finished difference Result 252 states and 347 transitions. [2023-11-23 08:13:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 08:13:17,647 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), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 103 [2023-11-23 08:13:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:13:17,648 INFO L225 Difference]: With dead ends: 252 [2023-11-23 08:13:17,648 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 08:13:17,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 08:13:17,650 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 36 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 08:13:17,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 410 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 08:13:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 08:13:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-23 08:13:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 76 states have internal predecessors, (92), 42 states have call successors, (42), 12 states have call predecessors, (42), 13 states have return successors, (47), 41 states have call predecessors, (47), 41 states have call successors, (47) [2023-11-23 08:13:17,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 181 transitions. [2023-11-23 08:13:17,662 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 181 transitions. Word has length 103 [2023-11-23 08:13:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:13:17,662 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 181 transitions. [2023-11-23 08:13:17,663 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), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 08:13:17,663 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 181 transitions. [2023-11-23 08:13:17,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 08:13:17,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:17,664 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:13:17,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 08:13:17,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:17,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:17,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:17,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1393090292, now seen corresponding path program 1 times [2023-11-23 08:13:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:17,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484638653] [2023-11-23 08:13:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:17,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:13:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 08:13:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:13:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:13:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 08:13:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 08:13:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 08:13:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 08:13:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 08:13:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 08:13:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:18,843 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-23 08:13:18,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:18,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484638653] [2023-11-23 08:13:18,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484638653] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:13:18,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094130481] [2023-11-23 08:13:18,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:18,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:18,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:18,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:13:18,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 08:13:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:19,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 08:13:19,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:13:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-11-23 08:13:19,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:13:19,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094130481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:13:19,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:13:19,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-11-23 08:13:19,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071145493] [2023-11-23 08:13:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:13:19,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:13:19,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:13:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:13:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-11-23 08:13:19,429 INFO L87 Difference]: Start difference. First operand 130 states and 181 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 08:13:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:13:19,906 INFO L93 Difference]: Finished difference Result 212 states and 296 transitions. [2023-11-23 08:13:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 08:13:19,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 109 [2023-11-23 08:13:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:13:19,908 INFO L225 Difference]: With dead ends: 212 [2023-11-23 08:13:19,909 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 08:13:19,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2023-11-23 08:13:19,912 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 08:13:19,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 555 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 08:13:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 08:13:19,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-23 08:13:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 76 states have internal predecessors, (92), 42 states have call successors, (42), 12 states have call predecessors, (42), 13 states have return successors, (45), 41 states have call predecessors, (45), 41 states have call successors, (45) [2023-11-23 08:13:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2023-11-23 08:13:19,943 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 109 [2023-11-23 08:13:19,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:13:19,944 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2023-11-23 08:13:19,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 08:13:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2023-11-23 08:13:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 08:13:19,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:19,950 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:13:19,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 08:13:20,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 08:13:20,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:20,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1870882314, now seen corresponding path program 2 times [2023-11-23 08:13:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75018961] [2023-11-23 08:13:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:20,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:13:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 08:13:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:13:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:13:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 08:13:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 08:13:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 08:13:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 08:13:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 08:13:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 08:13:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-23 08:13:20,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:20,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75018961] [2023-11-23 08:13:20,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75018961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:13:20,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386775607] [2023-11-23 08:13:20,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 08:13:20,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:20,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:20,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:13:20,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 08:13:21,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 08:13:21,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 08:13:21,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 2802 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 08:13:21,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:13:21,373 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-23 08:13:21,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:13:21,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386775607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:13:21,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:13:21,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-23 08:13:21,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438356663] [2023-11-23 08:13:21,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:13:21,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 08:13:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:13:21,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 08:13:21,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-23 08:13:21,375 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 08:13:21,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:13:21,613 INFO L93 Difference]: Finished difference Result 226 states and 312 transitions. [2023-11-23 08:13:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 08:13:21,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 121 [2023-11-23 08:13:21,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:13:21,615 INFO L225 Difference]: With dead ends: 226 [2023-11-23 08:13:21,616 INFO L226 Difference]: Without dead ends: 128 [2023-11-23 08:13:21,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 08:13:21,617 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 35 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:13:21,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 565 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 08:13:21,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-23 08:13:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-23 08:13:21,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 74 states have internal predecessors, (90), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-23 08:13:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 173 transitions. [2023-11-23 08:13:21,626 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 173 transitions. Word has length 121 [2023-11-23 08:13:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:13:21,627 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 173 transitions. [2023-11-23 08:13:21,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-23 08:13:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 173 transitions. [2023-11-23 08:13:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 08:13:21,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:21,628 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 08:13:21,647 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 08:13:21,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:21,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:21,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:21,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1020844033, now seen corresponding path program 1 times [2023-11-23 08:13:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90932865] [2023-11-23 08:13:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:21,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 08:13:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 08:13:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 08:13:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 08:13:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 08:13:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 08:13:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 08:13:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 08:13:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 08:13:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 08:13:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:24,806 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-23 08:13:24,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:24,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90932865] [2023-11-23 08:13:24,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90932865] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:13:24,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59713943] [2023-11-23 08:13:24,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:24,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:24,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:24,808 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:13:24,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 08:13:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:25,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 2819 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-23 08:13:25,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:13:25,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-23 08:13:25,371 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 08:13:25,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-23 08:13:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-23 08:13:26,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:13:26,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59713943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:13:26,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 08:13:26,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [16] total 30 [2023-11-23 08:13:26,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002370386] [2023-11-23 08:13:26,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:13:26,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 08:13:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:13:26,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 08:13:26,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2023-11-23 08:13:26,513 INFO L87 Difference]: Start difference. First operand 128 states and 173 transitions. Second operand has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 9 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 08:13:30,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:32,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:34,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:36,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:38,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:40,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:43,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:13:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:13:43,953 INFO L93 Difference]: Finished difference Result 373 states and 525 transitions. [2023-11-23 08:13:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-23 08:13:43,954 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 9 states have call predecessors, (19), 7 states have call successors, (19) Word has length 127 [2023-11-23 08:13:43,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:13:43,956 INFO L225 Difference]: With dead ends: 373 [2023-11-23 08:13:43,956 INFO L226 Difference]: Without dead ends: 251 [2023-11-23 08:13:43,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 140 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=150, Invalid=1410, Unknown=0, NotChecked=0, Total=1560 [2023-11-23 08:13:43,957 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 239 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 168 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:13:43,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 573 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1993 Invalid, 7 Unknown, 0 Unchecked, 17.2s Time] [2023-11-23 08:13:43,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-23 08:13:43,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 242. [2023-11-23 08:13:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 140 states have (on average 1.2357142857142858) internal successors, (173), 144 states have internal predecessors, (173), 80 states have call successors, (80), 19 states have call predecessors, (80), 21 states have return successors, (92), 78 states have call predecessors, (92), 78 states have call successors, (92) [2023-11-23 08:13:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 345 transitions. [2023-11-23 08:13:43,998 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 345 transitions. Word has length 127 [2023-11-23 08:13:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:13:43,999 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 345 transitions. [2023-11-23 08:13:43,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 15 states have internal predecessors, (52), 8 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 9 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 08:13:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 345 transitions. [2023-11-23 08:13:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 08:13:44,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:13:44,003 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 08:13:44,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 08:13:44,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:44,219 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:13:44,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:13:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1793613709, now seen corresponding path program 1 times [2023-11-23 08:13:44,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:13:44,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159373895] [2023-11-23 08:13:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:44,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:13:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 08:13:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 08:13:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 08:13:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 08:13:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 08:13:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 08:13:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 08:13:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 08:13:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 08:13:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 08:13:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 08:13:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 08:13:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:45,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 08:13:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 08:13:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:46,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 08:13:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:46,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 08:13:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-23 08:13:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:13:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159373895] [2023-11-23 08:13:46,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159373895] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:13:46,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018507911] [2023-11-23 08:13:46,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:13:46,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:13:46,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:13:46,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:13:46,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 08:13:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:13:46,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 103 conjunts are in the unsatisfiable core [2023-11-23 08:13:46,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:13:46,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-23 08:13:46,744 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 08:13:47,026 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 44 treesize of output 42 [2023-11-23 08:13:47,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 38 treesize of output 31 [2023-11-23 08:13:49,273 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 08:13:49,275 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 08:13:55,458 INFO L349 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2023-11-23 08:13:55,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 70 treesize of output 68 [2023-11-23 08:13:55,471 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-11-23 08:13:55,472 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 1 case distinctions, treesize of input 28 treesize of output 27 [2023-11-23 08:13:55,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 08:13:55,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2023-11-23 08:13:55,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 08:13:55,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2023-11-23 08:14:00,761 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 3 [2023-11-23 08:14:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 127 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:14:24,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:14:35,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018507911] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 08:14:35,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:14:35,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 29] total 41 [2023-11-23 08:14:35,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502583279] [2023-11-23 08:14:35,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:14:35,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-23 08:14:35,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:14:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-23 08:14:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=2516, Unknown=30, NotChecked=0, Total=2756 [2023-11-23 08:14:35,880 INFO L87 Difference]: Start difference. First operand 242 states and 345 transitions. Second operand has 41 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 34 states have internal predecessors, (120), 15 states have call successors, (40), 9 states have call predecessors, (40), 11 states have return successors, (39), 15 states have call predecessors, (39), 15 states have call successors, (39) [2023-11-23 08:14:39,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:45,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:47,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:49,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:51,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:53,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:14:56,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:01,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:03,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:05,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:07,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:09,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:11,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:13,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:15,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:20,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:22,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:25,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:27,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:31,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:34,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:36,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:38,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:40,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:42,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:46,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:48,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:55,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:57,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:15:59,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:01,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:04,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:06,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:08,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:14,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:16,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:18,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:20,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:24,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:26,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:29,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:31,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:33,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:35,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:37,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:39,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:42,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:46,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:48,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:50,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:52,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:54,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:56,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:16:58,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:01,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:07,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:09,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:11,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:13,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:15,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:17,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:24,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:26,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:34,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:36,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 08:17:38,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15