./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU --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 d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:06,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:06,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 22:12:06,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:06,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:06,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:06,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:06,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:06,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:06,526 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:06,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:06,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:06,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:06,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:06,529 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:06,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:06,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:06,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:06,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:06,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:06,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:06,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:06,537 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:06,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:06,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:06,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:06,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:06,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:06,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:06,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:06,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:06,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:06,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:06,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:06,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:06,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:06,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:06,543 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:06,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:06,543 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d31a3c72327f82612c1df0b26c3fcc0fecf0a10b67b9a605f782e4835b0f6e1b [2024-10-31 22:12:06,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:06,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:06,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:06,842 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:06,842 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:06,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i Unable to find full path for "g++" [2024-10-31 22:12:09,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:09,818 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:09,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i [2024-10-31 22:12:09,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/data/d3ecbd842/82d6eb57d9494e7b8bad36204f07d6f0/FLAG54c4969fb [2024-10-31 22:12:09,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/data/d3ecbd842/82d6eb57d9494e7b8bad36204f07d6f0 [2024-10-31 22:12:09,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:09,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:09,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:09,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:09,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:09,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:09" (1/1) ... [2024-10-31 22:12:09,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f19f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:09, skipping insertion in model container [2024-10-31 22:12:09,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:09" (1/1) ... [2024-10-31 22:12:10,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:10,439 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-10-31 22:12:10,448 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-10-31 22:12:11,631 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,632 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,633 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,634 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,635 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,653 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,654 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,656 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,657 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,660 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,662 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,663 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:11,664 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,404 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,405 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,413 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,414 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,420 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,421 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,428 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,437 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,500 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,501 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:12,554 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:12,575 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4494,4507] [2024-10-31 22:12:12,580 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness.i[4554,4567] [2024-10-31 22:12:12,681 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,684 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,685 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,685 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,686 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,698 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,701 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,702 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,704 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,707 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,708 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,709 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,709 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,871 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,872 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,874 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,874 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,880 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,880 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,882 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7825-7836] [2024-10-31 22:12:12,940 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,941 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:12:12,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:13,237 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:13,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13 WrapperNode [2024-10-31 22:12:13,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:13,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:13,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:13,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:13,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,432 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-10-31 22:12:13,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:13,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:13,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:13,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:13,447 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,613 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 73, 6, 9, 3]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 0, 5, 1]. The 243 writes are split as follows [232, 0, 6, 2, 2, 1]. [2024-10-31 22:12:13,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:13,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:13,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:13,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:13,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (1/1) ... [2024-10-31 22:12:13,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:13,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:13,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2abf35-43ef-4868-b7b9-d7ba84d40a12/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-10-31 22:12:13,826 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-10-31 22:12:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:12:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-31 22:12:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-31 22:12:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-31 22:12:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-31 22:12:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-31 22:12:13,828 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-31 22:12:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-31 22:12:13,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-31 22:12:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-31 22:12:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-31 22:12:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-31 22:12:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-31 22:12:13,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 22:12:13,830 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-31 22:12:13,830 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-31 22:12:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:12:13,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:12:13,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:12:13,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-10-31 22:12:13,833 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:12:13,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-31 22:12:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-31 22:12:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:13,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-31 22:12:13,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-31 22:12:13,834 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-31 22:12:13,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-31 22:12:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-31 22:12:13,835 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-31 22:12:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-31 22:12:13,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-31 22:12:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-31 22:12:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-31 22:12:13,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-31 22:12:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-31 22:12:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-31 22:12:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-31 22:12:13,837 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-31 22:12:13,838 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-31 22:12:13,838 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:12:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:12:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-10-31 22:12:13,839 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-10-31 22:12:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:12:13,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:12:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:12:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:12:13,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:12:13,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 22:12:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-31 22:12:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-31 22:12:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-31 22:12:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-31 22:12:13,842 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-31 22:12:13,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-31 22:12:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:12:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:12:13,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:12:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:12:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:12:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 22:12:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-10-31 22:12:13,844 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-10-31 22:12:13,844 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-31 22:12:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-31 22:12:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-31 22:12:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-31 22:12:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-31 22:12:13,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-31 22:12:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:12:13,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:12:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:12:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:12:13,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:12:14,320 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:14,323 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:21,840 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:21,840 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:21,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:21,870 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:12:21,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:21 BoogieIcfgContainer [2024-10-31 22:12:21,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:21,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:21,877 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:21,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:21,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:09" (1/3) ... [2024-10-31 22:12:21,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571ed00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:21, skipping insertion in model container [2024-10-31 22:12:21,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:13" (2/3) ... [2024-10-31 22:12:21,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571ed00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:21, skipping insertion in model container [2024-10-31 22:12:21,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:21" (3/3) ... [2024-10-31 22:12:21,889 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness.i [2024-10-31 22:12:21,913 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:21,913 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:12:22,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:22,051 INFO L333 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, 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;@3fc542b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:22,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:12:22,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-31 22:12:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-31 22:12:22,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:22,080 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:22,081 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:12:22,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:22,091 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-10-31 22:12:22,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:22,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340388077] [2024-10-31 22:12:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:12:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:12:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:12:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:12:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:12:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:12:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:12:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:12:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:12:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:12:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:12:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 22:12:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-31 22:12:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-31 22:12:31,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:31,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340388077] [2024-10-31 22:12:31,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340388077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:31,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:31,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:31,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577964935] [2024-10-31 22:12:31,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:31,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:31,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:31,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:31,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:31,861 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:12:35,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-31 22:12:40,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []