./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_harness.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 06:50:42,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 06:50:42,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 06:50:42,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 06:50:42,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 06:50:42,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 06:50:42,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 06:50:42,663 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 06:50:42,663 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 06:50:42,664 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 06:50:42,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 06:50:42,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 06:50:42,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 06:50:42,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 06:50:42,665 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 06:50:42,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 06:50:42,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 06:50:42,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 06:50:42,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 06:50:42,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 06:50:42,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 06:50:42,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 06:50:42,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 06:50:42,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 06:50:42,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 06:50:42,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 06:50:42,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 06:50:42,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 06:50:42,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:50:42,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 06:50:42,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 06:50:42,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 06:50:42,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 06:50:42,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 06:50:42,676 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efe93c285b9cfe4b236eb7cc9957c6e5b1b94bff3322775b8e8d61a9769c319e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 06:50:42,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 06:50:42,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 06:50:42,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 06:50:42,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 06:50:42,922 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 06:50:42,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-23 06:50:43,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 06:50:44,426 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 06:50:44,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_byte_buf_eq_harness.i [2023-11-23 06:50:44,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bf79fa5/78eb427c78ac4c4f93bae33b09f7f04b/FLAG797338063 [2023-11-23 06:50:44,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13bf79fa5/78eb427c78ac4c4f93bae33b09f7f04b [2023-11-23 06:50:44,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 06:50:44,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 06:50:44,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 06:50:44,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 06:50:44,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 06:50:44,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:44" (1/1) ... [2023-11-23 06:50:44,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc9de24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:44, skipping insertion in model container [2023-11-23 06:50:44,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:50:44" (1/1) ... [2023-11-23 06:50:44,556 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 06:50:44,733 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_harness.i[4489,4502] [2023-11-23 06:50:44,742 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_harness.i[4549,4562] [2023-11-23 06:50:45,318 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,319 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,319 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,319 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,320 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,327 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,337 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,338 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,339 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,590 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:50:45,593 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:50:45,594 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:50:45,595 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:50:45,596 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:50:45,596 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:50:45,597 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:50:45,597 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:50:45,599 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:50:45,600 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:50:45,774 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,779 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:50:45,873 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 06:50:45,917 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_harness.i[4489,4502] [2023-11-23 06:50:45,918 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_harness.i[4549,4562] [2023-11-23 06:50:45,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,936 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,937 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,940 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,941 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,941 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,942 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:45,957 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 06:50:45,958 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 06:50:45,958 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 06:50:45,959 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 06:50:45,959 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 06:50:45,960 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 06:50:45,960 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 06:50:45,960 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 06:50:45,961 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 06:50:45,961 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 06:50:46,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2023-11-23 06:50:46,020 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:46,021 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 06:50:46,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2023-11-23 06:50:46,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 06:50:46,228 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,229 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,229 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,229 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,229 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,229 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,230 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,230 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,230 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,230 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,231 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,231 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,231 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,231 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,231 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,232 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,232 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,232 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 06:50:46,238 INFO L206 MainTranslator]: Completed translation [2023-11-23 06:50:46,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46 WrapperNode [2023-11-23 06:50:46,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 06:50:46,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 06:50:46,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 06:50:46,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 06:50:46,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,401 INFO L138 Inliner]: procedures = 690, calls = 2669, calls flagged for inlining = 60, calls inlined = 6, statements flattened = 887 [2023-11-23 06:50:46,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 06:50:46,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 06:50:46,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 06:50:46,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 06:50:46,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,463 INFO L188 MemorySlicer]: Split 570 memory accesses to 7 slices as follows [2, 58, 256, 236, 6, 9, 3]. 45 percent of accesses are in the largest equivalence class. The 510 initializations are split as follows [2, 8, 256, 236, 0, 5, 3]. The 8 writes are split as follows [0, 6, 0, 0, 2, 0, 0]. [2023-11-23 06:50:46,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 06:50:46,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 06:50:46,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 06:50:46,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 06:50:46,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (1/1) ... [2023-11-23 06:50:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 06:50:46,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:46,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 06:50:46,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 06:50:46,637 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2023-11-23 06:50:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2023-11-23 06:50:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 06:50:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 06:50:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 06:50:46,638 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 06:50:46,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 06:50:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 06:50:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 06:50:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 06:50:46,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 06:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 06:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 06:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 06:50:46,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 06:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 06:50:46,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2023-11-23 06:50:46,641 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 06:50:46,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 06:50:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 06:50:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 06:50:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2023-11-23 06:50:46,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 06:50:46,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 06:50:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 06:50:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 06:50:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2023-11-23 06:50:46,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2023-11-23 06:50:46,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 06:50:46,644 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 06:50:46,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2023-11-23 06:50:46,645 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 06:50:46,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 06:50:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 06:50:46,646 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 06:50:46,646 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2023-11-23 06:50:46,647 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 06:50:46,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 06:50:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 06:50:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2023-11-23 06:50:46,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2023-11-23 06:50:46,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 06:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 06:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 06:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 06:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 06:50:46,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 06:50:46,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 06:50:46,913 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 06:50:46,915 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 06:50:47,672 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 06:50:47,768 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 06:50:47,768 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 06:50:47,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:47 BoogieIcfgContainer [2023-11-23 06:50:47,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 06:50:47,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 06:50:47,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 06:50:47,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 06:50:47,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:50:44" (1/3) ... [2023-11-23 06:50:47,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512e513b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:47, skipping insertion in model container [2023-11-23 06:50:47,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:50:46" (2/3) ... [2023-11-23 06:50:47,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512e513b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:50:47, skipping insertion in model container [2023-11-23 06:50:47,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:50:47" (3/3) ... [2023-11-23 06:50:47,782 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_harness.i [2023-11-23 06:50:47,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 06:50:47,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 06:50:47,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 06:50:47,851 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;@3734d51c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 06:50:47,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 06:50:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 80 states have internal predecessors, (100), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 06:50:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 06:50:47,873 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:47,874 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 06:50:47,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:47,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1582873524, now seen corresponding path program 1 times [2023-11-23 06:50:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:47,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696233615] [2023-11-23 06:50:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:47,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 06:50:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 06:50:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:50:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:50:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 06:50:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 06:50:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:50:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 06:50:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 06:50:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:48,861 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 06:50:48,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:48,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696233615] [2023-11-23 06:50:48,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696233615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:48,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 06:50:48,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 06:50:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908829223] [2023-11-23 06:50:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:50:48,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:50:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:50:48,890 INFO L87 Difference]: Start difference. First operand has 140 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 80 states have internal predecessors, (100), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) 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 06:50:50,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:50,037 INFO L93 Difference]: Finished difference Result 279 states and 414 transitions. [2023-11-23 06:50:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:50:50,039 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 06:50:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:50,046 INFO L225 Difference]: With dead ends: 279 [2023-11-23 06:50:50,046 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 06:50:50,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 06:50:50,052 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 77 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:50,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 167 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 06:50:50,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 06:50:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2023-11-23 06:50:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 79 states have internal predecessors, (97), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-23 06:50:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 188 transitions. [2023-11-23 06:50:50,103 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 188 transitions. Word has length 103 [2023-11-23 06:50:50,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:50,103 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 188 transitions. [2023-11-23 06:50:50,104 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 06:50:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 188 transitions. [2023-11-23 06:50:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-23 06:50:50,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:50,106 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 06:50:50,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 06:50:50,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:50,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:50,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1954925258, now seen corresponding path program 1 times [2023-11-23 06:50:50,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:50,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215289132] [2023-11-23 06:50:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:50,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-23 06:50:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-23 06:50:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:50:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:50:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 06:50:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 06:50:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-23 06:50:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 06:50:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 06:50:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:50,973 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 06:50:50,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:50,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215289132] [2023-11-23 06:50:50,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215289132] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:50,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781021154] [2023-11-23 06:50:50,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:50,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:50,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:50,976 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:50:50,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 06:50:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:51,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 2895 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 06:50:51,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:51,572 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 06:50:51,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:51,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781021154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:51,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:51,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-23 06:50:51,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508124100] [2023-11-23 06:50:51,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:51,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 06:50:51,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 06:50:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:50:51,577 INFO L87 Difference]: Start difference. First operand 138 states and 188 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 06:50:52,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:52,156 INFO L93 Difference]: Finished difference Result 272 states and 375 transitions. [2023-11-23 06:50:52,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:50:52,157 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 06:50:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:52,168 INFO L225 Difference]: With dead ends: 272 [2023-11-23 06:50:52,169 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 06:50:52,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 06:50:52,173 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 44 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:52,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 574 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 06:50:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 06:50:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-23 06:50:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 79 states have (on average 1.240506329113924) internal successors, (98), 81 states have internal predecessors, (98), 46 states have call successors, (46), 13 states have call predecessors, (46), 14 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2023-11-23 06:50:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 195 transitions. [2023-11-23 06:50:52,208 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 195 transitions. Word has length 103 [2023-11-23 06:50:52,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:52,209 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 195 transitions. [2023-11-23 06:50:52,209 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 06:50:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 195 transitions. [2023-11-23 06:50:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 06:50:52,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:52,215 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 06:50:52,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 06:50:52,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:52,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:52,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2141359841, now seen corresponding path program 1 times [2023-11-23 06:50:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:52,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566949273] [2023-11-23 06:50:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:52,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:50:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:50:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:50:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:50:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-23 06:50:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 06:50:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 06:50:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 06:50:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 06:50:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-23 06:50:53,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:53,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566949273] [2023-11-23 06:50:53,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566949273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:53,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431333768] [2023-11-23 06:50:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:53,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:53,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:53,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:50:53,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 06:50:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:53,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 06:50:53,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:53,877 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 06:50:53,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:53,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431333768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:53,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:53,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-23 06:50:53,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756344351] [2023-11-23 06:50:53,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:53,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:50:53,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:53,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:50:53,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-23 06:50:53,881 INFO L87 Difference]: Start difference. First operand 140 states and 195 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 06:50:54,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:54,341 INFO L93 Difference]: Finished difference Result 232 states and 324 transitions. [2023-11-23 06:50:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:50:54,341 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 06:50:54,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:54,342 INFO L225 Difference]: With dead ends: 232 [2023-11-23 06:50:54,342 INFO L226 Difference]: Without dead ends: 140 [2023-11-23 06:50:54,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 06:50:54,343 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 44 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:54,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 732 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 06:50:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-23 06:50:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-23 06:50:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 79 states have (on average 1.240506329113924) internal successors, (98), 81 states have internal predecessors, (98), 46 states have call successors, (46), 13 states have call predecessors, (46), 14 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2023-11-23 06:50:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2023-11-23 06:50:54,355 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 109 [2023-11-23 06:50:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:54,355 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2023-11-23 06:50:54,355 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 06:50:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2023-11-23 06:50:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 06:50:54,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:54,357 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 06:50:54,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 06:50:54,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 06:50:54,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:54,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:54,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1368167433, now seen corresponding path program 2 times [2023-11-23 06:50:54,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:54,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117331806] [2023-11-23 06:50:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:54,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:50:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:50:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:50:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:50:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 06:50:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 06:50:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 06:50:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 06:50:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 06:50:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:55,327 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 06:50:55,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:55,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117331806] [2023-11-23 06:50:55,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117331806] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:55,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957182607] [2023-11-23 06:50:55,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:50:55,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:55,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:50:55,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 06:50:55,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-23 06:50:55,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:50:55,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 06:50:55,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-23 06:50:55,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:55,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957182607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:55,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:55,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-11-23 06:50:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227634039] [2023-11-23 06:50:55,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 06:50:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 06:50:55,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 06:50:55,815 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 06:50:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:56,507 INFO L93 Difference]: Finished difference Result 151 states and 211 transitions. [2023-11-23 06:50:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 06:50:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-23 06:50:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:56,509 INFO L225 Difference]: With dead ends: 151 [2023-11-23 06:50:56,509 INFO L226 Difference]: Without dead ends: 149 [2023-11-23 06:50:56,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-23 06:50:56,510 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 23 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:56,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1209 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 06:50:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-23 06:50:56,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 148. [2023-11-23 06:50:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 87 states have internal predecessors, (103), 47 states have call successors, (47), 14 states have call predecessors, (47), 16 states have return successors, (58), 46 states have call predecessors, (58), 46 states have call successors, (58) [2023-11-23 06:50:56,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 208 transitions. [2023-11-23 06:50:56,521 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 208 transitions. Word has length 121 [2023-11-23 06:50:56,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:56,522 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 208 transitions. [2023-11-23 06:50:56,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-23 06:50:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 208 transitions. [2023-11-23 06:50:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-23 06:50:56,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:56,523 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:50:56,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 06:50:56,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:56,740 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:56,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1242935485, now seen corresponding path program 1 times [2023-11-23 06:50:56,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:56,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763170269] [2023-11-23 06:50:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:50:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:50:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:50:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:50:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:50:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:50:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:50:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:50:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 06:50:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 06:50:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-23 06:50:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 06:50:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:50:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:50:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 06:50:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,413 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 06:50:57,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:50:57,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763170269] [2023-11-23 06:50:57,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763170269] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:50:57,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231047730] [2023-11-23 06:50:57,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:57,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:57,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:50:57,415 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:50:57,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 06:50:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:50:57,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 06:50:57,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:50:58,009 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 06:50:58,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:50:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231047730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:50:58,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:50:58,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-23 06:50:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374094519] [2023-11-23 06:50:58,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:50:58,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 06:50:58,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:50:58,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 06:50:58,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-23 06:50:58,011 INFO L87 Difference]: Start difference. First operand 148 states and 208 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 06:50:58,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:50:58,700 INFO L93 Difference]: Finished difference Result 262 states and 368 transitions. [2023-11-23 06:50:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 06:50:58,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 125 [2023-11-23 06:50:58,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:50:58,702 INFO L225 Difference]: With dead ends: 262 [2023-11-23 06:50:58,702 INFO L226 Difference]: Without dead ends: 146 [2023-11-23 06:50:58,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-23 06:50:58,703 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 43 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 06:50:58,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 750 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 06:50:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-23 06:50:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-23 06:50:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 83 states have (on average 1.216867469879518) internal successors, (101), 85 states have internal predecessors, (101), 47 states have call successors, (47), 14 states have call predecessors, (47), 15 states have return successors, (54), 46 states have call predecessors, (54), 46 states have call successors, (54) [2023-11-23 06:50:58,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 202 transitions. [2023-11-23 06:50:58,713 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 202 transitions. Word has length 125 [2023-11-23 06:50:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:50:58,713 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 202 transitions. [2023-11-23 06:50:58,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 06:50:58,713 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 202 transitions. [2023-11-23 06:50:58,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 06:50:58,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:50:58,714 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 06:50:58,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 06:50:58,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:50:58,930 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:50:58,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:50:58,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1146334990, now seen corresponding path program 1 times [2023-11-23 06:50:58,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:50:58,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029316564] [2023-11-23 06:50:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:50:58,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:50:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-23 06:51:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-23 06:51:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:51:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:51:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-23 06:51:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:01,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-23 06:51:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-23 06:51:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-23 06:51:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 06:51:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,304 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 06:51:02,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:02,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029316564] [2023-11-23 06:51:02,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029316564] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:02,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962564949] [2023-11-23 06:51:02,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:02,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:02,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:02,306 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:51:02,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 06:51:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:02,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-23 06:51:02,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:02,821 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 06:51:02,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-23 06:51:03,264 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 06:51:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-23 06:51:03,602 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:03,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962564949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:03,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:03,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [16] total 30 [2023-11-23 06:51:03,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336872402] [2023-11-23 06:51:03,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:03,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 06:51:03,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:03,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 06:51:03,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2023-11-23 06:51:03,605 INFO L87 Difference]: Start difference. First operand 146 states and 202 transitions. Second operand has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 15 states have internal predecessors, (69), 7 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 06:51:05,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:09,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:11,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:14,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:15,072 INFO L93 Difference]: Finished difference Result 342 states and 478 transitions. [2023-11-23 06:51:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 06:51:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 15 states have internal predecessors, (69), 7 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 131 [2023-11-23 06:51:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:15,074 INFO L225 Difference]: With dead ends: 342 [2023-11-23 06:51:15,074 INFO L226 Difference]: Without dead ends: 202 [2023-11-23 06:51:15,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 154 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=1485, Unknown=0, NotChecked=0, Total=1640 [2023-11-23 06:51:15,076 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 296 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 312 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:15,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 430 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 1444 Invalid, 4 Unknown, 0 Unchecked, 11.2s Time] [2023-11-23 06:51:15,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-23 06:51:15,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2023-11-23 06:51:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.2) internal successors, (126), 108 states have internal predecessors, (126), 65 states have call successors, (65), 18 states have call predecessors, (65), 18 states have return successors, (73), 62 states have call predecessors, (73), 64 states have call successors, (73) [2023-11-23 06:51:15,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 264 transitions. [2023-11-23 06:51:15,103 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 264 transitions. Word has length 131 [2023-11-23 06:51:15,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:15,103 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 264 transitions. [2023-11-23 06:51:15,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 15 states have internal predecessors, (69), 7 states have call successors, (20), 4 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-23 06:51:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 264 transitions. [2023-11-23 06:51:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 06:51:15,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:15,104 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:51:15,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 06:51:15,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:15,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:15,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:15,322 INFO L85 PathProgramCache]: Analyzing trace with hash 347405826, now seen corresponding path program 2 times [2023-11-23 06:51:15,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:15,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125765660] [2023-11-23 06:51:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 06:51:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 06:51:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 06:51:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 06:51:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 06:51:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 06:51:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 06:51:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-23 06:51:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-23 06:51:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-23 06:51:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 6 proven. 23 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 06:51:16,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:16,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125765660] [2023-11-23 06:51:16,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125765660] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:16,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638633508] [2023-11-23 06:51:16,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 06:51:16,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:16,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:16,358 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:51:16,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 06:51:16,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 06:51:16,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 06:51:16,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-23 06:51:16,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-11-23 06:51:16,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:16,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638633508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:16,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:16,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 13 [2023-11-23 06:51:16,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798002397] [2023-11-23 06:51:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:16,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 06:51:16,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:16,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 06:51:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-23 06:51:16,909 INFO L87 Difference]: Start difference. First operand 189 states and 264 transitions. Second operand has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 06:51:17,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:17,520 INFO L93 Difference]: Finished difference Result 370 states and 529 transitions. [2023-11-23 06:51:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 06:51:17,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 139 [2023-11-23 06:51:17,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:17,522 INFO L225 Difference]: With dead ends: 370 [2023-11-23 06:51:17,522 INFO L226 Difference]: Without dead ends: 193 [2023-11-23 06:51:17,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-23 06:51:17,523 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 13 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:17,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1298 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 06:51:17,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-23 06:51:17,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-23 06:51:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 108 states have (on average 1.1944444444444444) internal successors, (129), 112 states have internal predecessors, (129), 65 states have call successors, (65), 18 states have call predecessors, (65), 19 states have return successors, (85), 62 states have call predecessors, (85), 64 states have call successors, (85) [2023-11-23 06:51:17,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 279 transitions. [2023-11-23 06:51:17,556 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 279 transitions. Word has length 139 [2023-11-23 06:51:17,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:17,557 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 279 transitions. [2023-11-23 06:51:17,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 06:51:17,557 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 279 transitions. [2023-11-23 06:51:17,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-23 06:51:17,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:17,558 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:51:17,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 06:51:17,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:17,772 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:17,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:17,773 INFO L85 PathProgramCache]: Analyzing trace with hash 326790493, now seen corresponding path program 1 times [2023-11-23 06:51:17,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:17,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109760418] [2023-11-23 06:51:17,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:17,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 06:51:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:51:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:51:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 06:51:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:51:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:51:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 06:51:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 06:51:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 06:51:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,269 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-23 06:51:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:18,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109760418] [2023-11-23 06:51:18,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109760418] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:18,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418548932] [2023-11-23 06:51:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:18,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:18,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:18,271 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:51:18,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 06:51:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:18,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 2989 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 06:51:18,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-23 06:51:18,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 06:51:18,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418548932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 06:51:18,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 06:51:18,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-11-23 06:51:18,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301998732] [2023-11-23 06:51:18,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 06:51:18,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 06:51:18,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 06:51:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 06:51:18,781 INFO L87 Difference]: Start difference. First operand 193 states and 279 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 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 06:51:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 06:51:19,249 INFO L93 Difference]: Finished difference Result 379 states and 562 transitions. [2023-11-23 06:51:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 06:51:19,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 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 141 [2023-11-23 06:51:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 06:51:19,250 INFO L225 Difference]: With dead ends: 379 [2023-11-23 06:51:19,251 INFO L226 Difference]: Without dead ends: 198 [2023-11-23 06:51:19,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 06:51:19,252 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 9 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 06:51:19,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 520 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 06:51:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-23 06:51:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2023-11-23 06:51:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 110 states have (on average 1.190909090909091) internal successors, (131), 114 states have internal predecessors, (131), 65 states have call successors, (65), 18 states have call predecessors, (65), 19 states have return successors, (85), 62 states have call predecessors, (85), 64 states have call successors, (85) [2023-11-23 06:51:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 281 transitions. [2023-11-23 06:51:19,267 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 281 transitions. Word has length 141 [2023-11-23 06:51:19,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 06:51:19,267 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 281 transitions. [2023-11-23 06:51:19,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (20), 2 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 06:51:19,268 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 281 transitions. [2023-11-23 06:51:19,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-23 06:51:19,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 06:51:19,269 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 06:51:19,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 06:51:19,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:19,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 06:51:19,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 06:51:19,485 INFO L85 PathProgramCache]: Analyzing trace with hash 208349019, now seen corresponding path program 1 times [2023-11-23 06:51:19,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 06:51:19,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439560621] [2023-11-23 06:51:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:19,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 06:51:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-23 06:51:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 06:51:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 06:51:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-23 06:51:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 06:51:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 06:51:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-23 06:51:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-23 06:51:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 06:51:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 06:51:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-23 06:51:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-23 06:51:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 06:51:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 06:51:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 06:51:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 13 proven. 16 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-23 06:51:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 06:51:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439560621] [2023-11-23 06:51:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439560621] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 06:51:20,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158495349] [2023-11-23 06:51:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 06:51:20,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 06:51:20,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 06:51:20,461 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 06:51:20,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 06:51:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 06:51:20,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 2994 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-23 06:51:20,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 06:51:20,972 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 06:51:21,024 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 37 treesize of output 37 [2023-11-23 06:51:21,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2023-11-23 06:51:21,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2023-11-23 06:51:21,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-23 06:51:23,231 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_4| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_3| Int)) (let ((.cse2 (+ 8 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_1|)) (.cse0 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_3|)) (.cse1 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_4|))) (and (not (= |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_3| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_4|)) (= (select .cse0 8) (select .cse1 .cse2)) (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_4|) .cse2) (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_3|) 8)) (= (select .cse0 24) (select .cse1 (+ 24 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_1|)))))) is different from true [2023-11-23 06:51:25,410 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_2| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_4| Int)) (let ((.cse0 (+ 8 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_2|)) (.cse1 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_4|)) (.cse2 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_5|))) (and (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_4|) 8) (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_5|) .cse0)) (= (select .cse1 8) (select .cse2 .cse0)) (= (select .cse1 24) (select .cse2 (+ 24 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_2|))) (not (= |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_4| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_5|))))) is different from true [2023-11-23 06:51:27,502 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_5| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_6| Int) (|v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_3| Int)) (let ((.cse0 (+ 8 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_3|)) (.cse2 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_6|)) (.cse1 (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_5|))) (and (= (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_6|) .cse0) (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_5|) 8)) (= (select .cse1 8) (select .cse2 .cse0)) (= (select .cse2 (+ 24 |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.offset_BEFORE_CALL_3|)) (select .cse1 24)) (not (= |v_ULTIMATE.start_aws_byte_buf_eq_~a#1.base_BEFORE_CALL_5| |v_ULTIMATE.start_aws_byte_buf_eq_~b#1.base_BEFORE_CALL_6|))))) is different from true [2023-11-23 06:51:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 92 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 37 not checked. [2023-11-23 06:51:31,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 06:51:48,276 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 06:51:48,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2023-11-23 06:51:48,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 57 [2023-11-23 06:51:48,291 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 515 treesize of output 499 [2023-11-23 06:51:48,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 70 [2023-11-23 06:51:48,307 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-11-23 06:51:48,308 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 66 treesize of output 61 [2023-11-23 06:51:48,385 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 44 proven. 9 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-11-23 06:51:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158495349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 06:51:48,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 06:51:48,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 20, 15] total 43 [2023-11-23 06:51:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486752104] [2023-11-23 06:51:48,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 06:51:48,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-11-23 06:51:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 06:51:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-11-23 06:51:48,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1429, Unknown=6, NotChecked=234, Total=1806 [2023-11-23 06:51:48,388 INFO L87 Difference]: Start difference. First operand 195 states and 281 transitions. Second operand has 43 states, 40 states have (on average 3.725) internal successors, (149), 38 states have internal predecessors, (149), 13 states have call successors, (51), 11 states have call predecessors, (51), 12 states have return successors, (49), 12 states have call predecessors, (49), 13 states have call successors, (49) [2023-11-23 06:51:54,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 06:51:56,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:51:58,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:03,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:07,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:09,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:11,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:21,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:23,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:25,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:34,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:36,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:42,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:44,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:50,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:54,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:56,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:52:58,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:01,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:03,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:05,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:07,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:09,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:11,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:13,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:17,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:19,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:21,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:23,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:25,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:27,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:33,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:35,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:39,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:41,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:43,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:45,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:47,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:49,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:51,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:53:53,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:54:00,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:54:02,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:54:04,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:54:06,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-11-23 06:54:10,970 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, 1] Killed by 15