./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.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_linked_list_init_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3e33855732bf911c074b61758d4fc045b7b7b7affa817be687a2ca93efbf3565 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:26:58,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:26:58,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:26:58,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:26:58,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:26:58,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:26:58,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:26:58,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:26:58,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:26:58,592 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:26:58,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:26:58,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:26:58,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:26:58,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:26:58,594 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:26:58,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:26:58,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:26:58,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:26:58,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:26:58,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:26:58,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:26:58,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:26:58,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:26:58,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:26:58,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:26:58,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:26:58,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:26:58,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:26:58,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:26:58,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:26:58,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:26:58,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:26:58,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:26:58,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:26:58,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:26:58,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:26:58,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:26:58,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:26:58,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:26:58,601 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e33855732bf911c074b61758d4fc045b7b7b7affa817be687a2ca93efbf3565 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:26:58,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:26:58,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:26:58,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:26:58,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:26:58,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:26:58,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.i [2023-11-23 07:26:59,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:27:00,191 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:27:00,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_init_harness_negated.i [2023-11-23 07:27:00,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7db1f924/b1c81d0e881143b68bfbd91e120478c9/FLAG792006508 [2023-11-23 07:27:00,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7db1f924/b1c81d0e881143b68bfbd91e120478c9 [2023-11-23 07:27:00,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:27:00,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:27:00,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:27:00,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:27:00,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:27:00,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:27:00" (1/1) ... [2023-11-23 07:27:00,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4feb5ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:00, skipping insertion in model container [2023-11-23 07:27:00,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:27:00" (1/1) ... [2023-11-23 07:27:00,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:27:00,512 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_linked_list_init_harness_negated.i[4494,4507] [2023-11-23 07:27:00,519 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_linked_list_init_harness_negated.i[4554,4567] [2023-11-23 07:27:00,999 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:00,999 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,000 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,002 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,003 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,026 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,026 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,028 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,030 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,031 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,031 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,230 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:27:01,231 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:27:01,232 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:27:01,234 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:27:01,236 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:27:01,237 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:27:01,238 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:27:01,238 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:27:01,240 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:27:01,248 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:27:01,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:27:01,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:27:01,409 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_linked_list_init_harness_negated.i[4494,4507] [2023-11-23 07:27:01,413 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_linked_list_init_harness_negated.i[4554,4567] [2023-11-23 07:27:01,453 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,457 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,458 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,458 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,459 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,474 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,475 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,476 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,476 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,477 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,479 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,480 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,480 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:27:01,508 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:27:01,508 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:27:01,509 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:27:01,509 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:27:01,510 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:27:01,510 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:27:01,510 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:27:01,511 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:27:01,511 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:27:01,511 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:27:01,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:27:01,686 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,687 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,687 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,687 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,687 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,688 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,688 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,689 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,689 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,689 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,689 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,689 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,690 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,690 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,690 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,690 WARN L675 CHandler]: The function aws_array_list_ensure_capacity is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:27:01,697 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:27:01,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01 WrapperNode [2023-11-23 07:27:01,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:27:01,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:27:01,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:27:01,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:27:01,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,783 INFO L138 Inliner]: procedures = 678, calls = 1036, calls flagged for inlining = 50, calls inlined = 4, statements flattened = 91 [2023-11-23 07:27:01,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:27:01,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:27:01,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:27:01,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:27:01,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,830 INFO L188 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 5, 13]. 65 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 4 writes are split as follows [0, 0, 4]. [2023-11-23 07:27:01,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:27:01,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:27:01,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:27:01,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:27:01,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (1/1) ... [2023-11-23 07:27:01,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:27:01,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:01,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:27:01,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:27:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_init [2023-11-23 07:27:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_init [2023-11-23 07:27:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:27:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:27:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:27:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:27:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2023-11-23 07:27:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2023-11-23 07:27:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2023-11-23 07:27:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:27:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:27:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:27:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:27:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:27:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:27:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_empty [2023-11-23 07:27:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_empty [2023-11-23 07:27:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:27:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:27:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:27:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:27:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:27:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:27:01,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:27:02,234 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:27:02,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:27:02,359 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:27:02,381 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:27:02,382 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 07:27:02,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:27:02 BoogieIcfgContainer [2023-11-23 07:27:02,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:27:02,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:27:02,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:27:02,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:27:02,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:27:00" (1/3) ... [2023-11-23 07:27:02,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3036be55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:27:02, skipping insertion in model container [2023-11-23 07:27:02,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:27:01" (2/3) ... [2023-11-23 07:27:02,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3036be55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:27:02, skipping insertion in model container [2023-11-23 07:27:02,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:27:02" (3/3) ... [2023-11-23 07:27:02,389 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_init_harness_negated.i [2023-11-23 07:27:02,401 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:27:02,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:27:02,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:27:02,445 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;@1b06e36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:27:02,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:27:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 07:27:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 07:27:02,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:02,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:02,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:02,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:02,477 INFO L85 PathProgramCache]: Analyzing trace with hash 432604891, now seen corresponding path program 1 times [2023-11-23 07:27:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:02,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703478049] [2023-11-23 07:27:02,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:02,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:02,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:02,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703478049] [2023-11-23 07:27:02,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703478049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:02,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 07:27:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944323259] [2023-11-23 07:27:02,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:02,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 07:27:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 07:27:02,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 07:27:02,834 INFO L87 Difference]: Start difference. First operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 07:27:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:02,868 INFO L93 Difference]: Finished difference Result 104 states and 145 transitions. [2023-11-23 07:27:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 07:27:02,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-11-23 07:27:02,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:02,878 INFO L225 Difference]: With dead ends: 104 [2023-11-23 07:27:02,879 INFO L226 Difference]: Without dead ends: 52 [2023-11-23 07:27:02,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 07:27:02,890 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:02,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:02,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-23 07:27:02,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-23 07:27:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 07:27:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2023-11-23 07:27:02,929 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 25 [2023-11-23 07:27:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:02,930 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2023-11-23 07:27:02,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 07:27:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2023-11-23 07:27:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 07:27:02,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:02,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:02,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:27:02,940 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:02,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:02,941 INFO L85 PathProgramCache]: Analyzing trace with hash -385043559, now seen corresponding path program 1 times [2023-11-23 07:27:02,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:02,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407766784] [2023-11-23 07:27:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:02,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:03,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407766784] [2023-11-23 07:27:03,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407766784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:03,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:03,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:27:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170152523] [2023-11-23 07:27:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:03,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:27:03,392 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:03,459 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2023-11-23 07:27:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:27:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-23 07:27:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:03,462 INFO L225 Difference]: With dead ends: 62 [2023-11-23 07:27:03,462 INFO L226 Difference]: Without dead ends: 60 [2023-11-23 07:27:03,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:27:03,463 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 5 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:03,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 290 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-23 07:27:03,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2023-11-23 07:27:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 41 states have internal predecessors, (51), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 07:27:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2023-11-23 07:27:03,482 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 25 [2023-11-23 07:27:03,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:03,482 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2023-11-23 07:27:03,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:03,483 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2023-11-23 07:27:03,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 07:27:03,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:03,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:03,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 07:27:03,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:03,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:03,486 INFO L85 PathProgramCache]: Analyzing trace with hash 133984565, now seen corresponding path program 1 times [2023-11-23 07:27:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:03,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070154422] [2023-11-23 07:27:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:03,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:03,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070154422] [2023-11-23 07:27:03,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070154422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:03,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:03,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 07:27:03,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001371448] [2023-11-23 07:27:03,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:03,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 07:27:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 07:27:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:27:03,664 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:03,847 INFO L93 Difference]: Finished difference Result 110 states and 138 transitions. [2023-11-23 07:27:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:27:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-23 07:27:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:03,849 INFO L225 Difference]: With dead ends: 110 [2023-11-23 07:27:03,850 INFO L226 Difference]: Without dead ends: 59 [2023-11-23 07:27:03,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:27:03,852 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:03,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 297 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-23 07:27:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-23 07:27:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 41 states have internal predecessors, (50), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 07:27:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2023-11-23 07:27:03,863 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 27 [2023-11-23 07:27:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:03,863 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2023-11-23 07:27:03,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:03,864 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2023-11-23 07:27:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 07:27:03,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:03,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:03,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 07:27:03,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:03,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:03,877 INFO L85 PathProgramCache]: Analyzing trace with hash 652102594, now seen corresponding path program 1 times [2023-11-23 07:27:03,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:03,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444941323] [2023-11-23 07:27:03,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:03,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:04,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:04,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444941323] [2023-11-23 07:27:04,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444941323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:04,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:04,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:27:04,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701546957] [2023-11-23 07:27:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:04,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:04,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:04,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:27:04,019 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:04,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:04,076 INFO L93 Difference]: Finished difference Result 110 states and 138 transitions. [2023-11-23 07:27:04,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:27:04,077 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-23 07:27:04,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:04,079 INFO L225 Difference]: With dead ends: 110 [2023-11-23 07:27:04,079 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 07:27:04,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:27:04,081 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 11 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:04,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 250 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 07:27:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2023-11-23 07:27:04,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.275) internal successors, (51), 42 states have internal predecessors, (51), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 07:27:04,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2023-11-23 07:27:04,102 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 29 [2023-11-23 07:27:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:04,103 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2023-11-23 07:27:04,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:04,103 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2023-11-23 07:27:04,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 07:27:04,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:04,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:04,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 07:27:04,104 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:04,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1663723829, now seen corresponding path program 1 times [2023-11-23 07:27:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010439569] [2023-11-23 07:27:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:04,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:04,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:04,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010439569] [2023-11-23 07:27:04,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010439569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:04,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:04,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 07:27:04,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752840403] [2023-11-23 07:27:04,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:04,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 07:27:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 07:27:04,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 07:27:04,256 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:04,312 INFO L93 Difference]: Finished difference Result 113 states and 143 transitions. [2023-11-23 07:27:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 07:27:04,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-23 07:27:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:04,316 INFO L225 Difference]: With dead ends: 113 [2023-11-23 07:27:04,316 INFO L226 Difference]: Without dead ends: 64 [2023-11-23 07:27:04,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:27:04,322 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 8 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:04,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 256 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-23 07:27:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2023-11-23 07:27:04,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 07:27:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2023-11-23 07:27:04,334 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 30 [2023-11-23 07:27:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:04,335 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2023-11-23 07:27:04,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 07:27:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2023-11-23 07:27:04,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 07:27:04,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:04,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 07:27:04,336 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:04,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash 853391152, now seen corresponding path program 1 times [2023-11-23 07:27:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816596693] [2023-11-23 07:27:04,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:04,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:04,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816596693] [2023-11-23 07:27:04,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816596693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:04,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:04,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:27:04,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233690758] [2023-11-23 07:27:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:04,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:27:04,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:27:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:27:04,547 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 07:27:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:04,593 INFO L93 Difference]: Finished difference Result 72 states and 87 transitions. [2023-11-23 07:27:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 07:27:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2023-11-23 07:27:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:04,594 INFO L225 Difference]: With dead ends: 72 [2023-11-23 07:27:04,594 INFO L226 Difference]: Without dead ends: 70 [2023-11-23 07:27:04,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:27:04,595 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 7 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:04,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 350 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:04,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-23 07:27:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2023-11-23 07:27:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 44 states have internal predecessors, (53), 11 states have call successors, (11), 7 states have call predecessors, (11), 8 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 07:27:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2023-11-23 07:27:04,600 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 37 [2023-11-23 07:27:04,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:04,600 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2023-11-23 07:27:04,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 07:27:04,601 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2023-11-23 07:27:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:04,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:04,602 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:04,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 07:27:04,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:04,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:04,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1544791511, now seen corresponding path program 1 times [2023-11-23 07:27:04,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:04,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701482892] [2023-11-23 07:27:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:04,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,001 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:05,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:05,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701482892] [2023-11-23 07:27:05,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701482892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:05,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:05,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 07:27:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807632577] [2023-11-23 07:27:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:05,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 07:27:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:05,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 07:27:05,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 07:27:05,003 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:05,145 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2023-11-23 07:27:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 07:27:05,145 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-23 07:27:05,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:05,146 INFO L225 Difference]: With dead ends: 120 [2023-11-23 07:27:05,146 INFO L226 Difference]: Without dead ends: 65 [2023-11-23 07:27:05,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:27:05,147 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:05,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 291 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:05,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-23 07:27:05,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-23 07:27:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 47 states have internal predecessors, (56), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2023-11-23 07:27:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2023-11-23 07:27:05,152 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 40 [2023-11-23 07:27:05,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:05,153 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2023-11-23 07:27:05,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:05,153 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2023-11-23 07:27:05,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:05,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:05,154 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:05,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 07:27:05,154 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:05,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash -260646823, now seen corresponding path program 1 times [2023-11-23 07:27:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:05,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482312986] [2023-11-23 07:27:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:05,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:05,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:05,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482312986] [2023-11-23 07:27:05,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482312986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:05,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:05,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 07:27:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491745932] [2023-11-23 07:27:05,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:05,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 07:27:05,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:05,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 07:27:05,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 07:27:05,584 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:05,754 INFO L93 Difference]: Finished difference Result 166 states and 213 transitions. [2023-11-23 07:27:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:27:05,755 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-23 07:27:05,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:05,756 INFO L225 Difference]: With dead ends: 166 [2023-11-23 07:27:05,756 INFO L226 Difference]: Without dead ends: 107 [2023-11-23 07:27:05,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-23 07:27:05,757 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 84 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:05,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 342 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:05,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-23 07:27:05,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 81. [2023-11-23 07:27:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 62 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2023-11-23 07:27:05,763 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 40 [2023-11-23 07:27:05,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:05,763 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2023-11-23 07:27:05,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2023-11-23 07:27:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:05,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:05,765 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:05,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 07:27:05,765 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:05,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash -120098213, now seen corresponding path program 1 times [2023-11-23 07:27:05,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:05,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407857135] [2023-11-23 07:27:05,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:05,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:06,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:06,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407857135] [2023-11-23 07:27:06,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407857135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:27:06,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703613578] [2023-11-23 07:27:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:06,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:27:06,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:06,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:27:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:27:06,194 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:06,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:06,400 INFO L93 Difference]: Finished difference Result 187 states and 246 transitions. [2023-11-23 07:27:06,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:27:06,400 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-23 07:27:06,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:06,401 INFO L225 Difference]: With dead ends: 187 [2023-11-23 07:27:06,401 INFO L226 Difference]: Without dead ends: 112 [2023-11-23 07:27:06,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:27:06,402 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:06,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 425 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:06,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-23 07:27:06,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 87. [2023-11-23 07:27:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 68 states have internal predecessors, (87), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:06,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2023-11-23 07:27:06,410 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 40 [2023-11-23 07:27:06,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:06,410 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2023-11-23 07:27:06,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2023-11-23 07:27:06,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:06,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:06,412 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:06,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 07:27:06,412 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:06,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1803129821, now seen corresponding path program 1 times [2023-11-23 07:27:06,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:06,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658483407] [2023-11-23 07:27:06,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:06,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:06,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658483407] [2023-11-23 07:27:06,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658483407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:06,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:06,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:27:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779857740] [2023-11-23 07:27:06,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:06,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:27:06,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:27:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:27:06,641 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:06,784 INFO L93 Difference]: Finished difference Result 204 states and 271 transitions. [2023-11-23 07:27:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 07:27:06,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2023-11-23 07:27:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:06,785 INFO L225 Difference]: With dead ends: 204 [2023-11-23 07:27:06,785 INFO L226 Difference]: Without dead ends: 123 [2023-11-23 07:27:06,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:27:06,786 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 54 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:06,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 429 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:06,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-23 07:27:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 87. [2023-11-23 07:27:06,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3384615384615384) internal successors, (87), 68 states have internal predecessors, (87), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2023-11-23 07:27:06,792 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 40 [2023-11-23 07:27:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:06,793 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2023-11-23 07:27:06,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 07:27:06,793 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2023-11-23 07:27:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:06,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:06,794 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:06,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 07:27:06,794 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:06,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1125556571, now seen corresponding path program 1 times [2023-11-23 07:27:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425225611] [2023-11-23 07:27:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:06,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425225611] [2023-11-23 07:27:06,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425225611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:06,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:06,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:27:06,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141492544] [2023-11-23 07:27:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:06,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:27:06,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:27:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:27:06,864 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 07:27:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:06,889 INFO L93 Difference]: Finished difference Result 170 states and 226 transitions. [2023-11-23 07:27:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:27:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2023-11-23 07:27:06,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:06,890 INFO L225 Difference]: With dead ends: 170 [2023-11-23 07:27:06,890 INFO L226 Difference]: Without dead ends: 89 [2023-11-23 07:27:06,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:27:06,891 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 14 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:06,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 190 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:06,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-23 07:27:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2023-11-23 07:27:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 66 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2023-11-23 07:27:06,897 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 40 [2023-11-23 07:27:06,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:06,897 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2023-11-23 07:27:06,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 07:27:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2023-11-23 07:27:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:06,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:06,898 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:06,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 07:27:06,899 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:06,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1246182691, now seen corresponding path program 1 times [2023-11-23 07:27:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:06,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224787788] [2023-11-23 07:27:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:06,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224787788] [2023-11-23 07:27:06,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224787788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:06,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:06,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:27:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351675994] [2023-11-23 07:27:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:06,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:27:06,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:27:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:27:06,960 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 07:27:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:06,984 INFO L93 Difference]: Finished difference Result 169 states and 223 transitions. [2023-11-23 07:27:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 07:27:06,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2023-11-23 07:27:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:06,985 INFO L225 Difference]: With dead ends: 169 [2023-11-23 07:27:06,985 INFO L226 Difference]: Without dead ends: 90 [2023-11-23 07:27:06,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 07:27:06,986 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 181 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-23 07:27:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2023-11-23 07:27:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 66 states have internal predecessors, (81), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 107 transitions. [2023-11-23 07:27:06,992 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 107 transitions. Word has length 40 [2023-11-23 07:27:06,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:06,992 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 107 transitions. [2023-11-23 07:27:06,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 07:27:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 107 transitions. [2023-11-23 07:27:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:06,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:06,993 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:06,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 07:27:06,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:06,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:06,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1105634081, now seen corresponding path program 1 times [2023-11-23 07:27:06,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:06,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869141765] [2023-11-23 07:27:06,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:06,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:27:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:27:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:27:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 07:27:07,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:07,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869141765] [2023-11-23 07:27:07,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869141765] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:27:07,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:27:07,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 07:27:07,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748912441] [2023-11-23 07:27:07,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:07,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 07:27:07,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:07,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 07:27:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 07:27:07,098 INFO L87 Difference]: Start difference. First operand 85 states and 107 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 07:27:07,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:07,148 INFO L93 Difference]: Finished difference Result 181 states and 229 transitions. [2023-11-23 07:27:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 07:27:07,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 40 [2023-11-23 07:27:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:07,149 INFO L225 Difference]: With dead ends: 181 [2023-11-23 07:27:07,149 INFO L226 Difference]: Without dead ends: 78 [2023-11-23 07:27:07,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 07:27:07,150 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 28 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:07,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 345 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 07:27:07,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-23 07:27:07,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-23 07:27:07,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 59 states have internal predecessors, (71), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 97 transitions. [2023-11-23 07:27:07,159 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 97 transitions. Word has length 40 [2023-11-23 07:27:07,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:07,159 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 97 transitions. [2023-11-23 07:27:07,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 07:27:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 97 transitions. [2023-11-23 07:27:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 07:27:07,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:07,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:07,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 07:27:07,160 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:07,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash 512098045, now seen corresponding path program 1 times [2023-11-23 07:27:07,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:07,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948085077] [2023-11-23 07:27:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:07,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 07:27:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 07:27:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:27:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:27:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948085077] [2023-11-23 07:27:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948085077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467002530] [2023-11-23 07:27:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:07,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:27:07,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:27:07,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:27:07,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:27:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:27:07,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-23 07:27:07,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:27:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:07,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:27:08,434 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-11-23 07:27:08,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 23 [2023-11-23 07:27:08,440 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-11-23 07:27:08,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 20 treesize of output 12 [2023-11-23 07:27:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 07:27:08,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467002530] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 07:27:08,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 07:27:08,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11, 17] total 31 [2023-11-23 07:27:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696974403] [2023-11-23 07:27:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:27:08,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:27:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:27:08,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:27:08,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2023-11-23 07:27:08,459 INFO L87 Difference]: Start difference. First operand 78 states and 97 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 07:27:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:27:08,662 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2023-11-23 07:27:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:27:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2023-11-23 07:27:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:27:08,663 INFO L225 Difference]: With dead ends: 146 [2023-11-23 07:27:08,663 INFO L226 Difference]: Without dead ends: 79 [2023-11-23 07:27:08,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=1155, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 07:27:08,664 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 17 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:27:08,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 396 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 07:27:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-23 07:27:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-23 07:27:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 59 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 11 states have call successors, (14) [2023-11-23 07:27:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 95 transitions. [2023-11-23 07:27:08,668 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 95 transitions. Word has length 39 [2023-11-23 07:27:08,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:27:08,669 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 95 transitions. [2023-11-23 07:27:08,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 07:27:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2023-11-23 07:27:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-23 07:27:08,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:27:08,669 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 07:27:08,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 07:27:08,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 07:27:08,881 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:27:08,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:27:08,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1618550106, now seen corresponding path program 1 times [2023-11-23 07:27:08,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:27:08,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278663953] [2023-11-23 07:27:08,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:27:08,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:27:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:27:08,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 07:27:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 07:27:08,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 07:27:08,942 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 07:27:08,943 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 07:27:08,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 07:27:08,946 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:27:08,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 07:27:08,964 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:27:08,970 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,971 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,973 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:27:08,974 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:27:08,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:27:08,975 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret326 could not be translated [2023-11-23 07:27:08,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:27:08 BoogieIcfgContainer [2023-11-23 07:27:08,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 07:27:08,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 07:27:08,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 07:27:08,984 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 07:27:08,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:27:02" (3/4) ... [2023-11-23 07:27:08,985 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 07:27:08,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,994 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,995 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,996 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem309 [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem307 [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem305 [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated [2023-11-23 07:27:08,997 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem311 [2023-11-23 07:27:08,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,998 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem314 [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem317 [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem316 [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated [2023-11-23 07:27:08,999 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated [2023-11-23 07:27:09,000 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret326 could not be translated [2023-11-23 07:27:09,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-11-23 07:27:09,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 07:27:09,025 INFO L158 Benchmark]: Toolchain (without parser) took 8785.83ms. Allocated memory was 127.9MB in the beginning and 323.0MB in the end (delta: 195.0MB). Free memory was 80.3MB in the beginning and 122.8MB in the end (delta: -42.5MB). Peak memory consumption was 151.7MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,025 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 07:27:09,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1458.03ms. Allocated memory was 127.9MB in the beginning and 184.5MB in the end (delta: 56.6MB). Free memory was 80.1MB in the beginning and 122.1MB in the end (delta: -42.0MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.81ms. Allocated memory is still 184.5MB. Free memory was 122.1MB in the beginning and 116.7MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,026 INFO L158 Benchmark]: Boogie Preprocessor took 89.46ms. Allocated memory is still 184.5MB. Free memory was 116.7MB in the beginning and 112.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,026 INFO L158 Benchmark]: RCFGBuilder took 507.51ms. Allocated memory is still 184.5MB. Free memory was 112.5MB in the beginning and 125.1MB in the end (delta: -12.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,026 INFO L158 Benchmark]: TraceAbstraction took 6599.80ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 124.0MB in the beginning and 129.1MB in the end (delta: -5.1MB). Peak memory consumption was 135.4MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,027 INFO L158 Benchmark]: Witness Printer took 40.86ms. Allocated memory is still 323.0MB. Free memory was 129.1MB in the beginning and 122.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 07:27:09,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 97.3MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1458.03ms. Allocated memory was 127.9MB in the beginning and 184.5MB in the end (delta: 56.6MB). Free memory was 80.1MB in the beginning and 122.1MB in the end (delta: -42.0MB). Peak memory consumption was 95.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.81ms. Allocated memory is still 184.5MB. Free memory was 122.1MB in the beginning and 116.7MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.46ms. Allocated memory is still 184.5MB. Free memory was 116.7MB in the beginning and 112.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 507.51ms. Allocated memory is still 184.5MB. Free memory was 112.5MB in the beginning and 125.1MB in the end (delta: -12.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6599.80ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 124.0MB in the beginning and 129.1MB in the end (delta: -5.1MB). Peak memory consumption was 135.4MB. Max. memory is 16.1GB. * Witness Printer took 40.86ms. Allocated memory is still 323.0MB. Free memory was 129.1MB in the beginning and 122.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret326 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem309 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short306 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short308 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem307 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem305 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short312 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short310 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem311 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem314 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem317 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem316 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short315 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short318 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret324 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret326 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 223]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L6901-L6906] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7326] static __thread int tl_last_error = 0; [L7355] CALL aws_linked_list_init_harness() [L7344] struct aws_linked_list list; VAL [list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L7350] CALL aws_linked_list_init(&list) VAL [list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4771] CALL assume_abort_if_not((list)) VAL [\old(cond)=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L211] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4771] RET assume_abort_if_not((list)) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4772] list->head.next = &list->tail [L4773-L4774] list->head.prev = ((void *)0) [L4776] list->tail.prev = &list->head [L4777-L4778] list->tail.next = ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4780] CALL, EXPR aws_linked_list_is_valid(list) VAL [list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694] EXPR list && list->head.next [L4694] EXPR list->head.next [L4694] EXPR list && list->head.next VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) [L4694] EXPR list->head.prev [L4694-L4695] EXPR list && list->head.next && list->head.prev == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev [L4696] EXPR list->tail.prev [L4694-L4696] EXPR list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4696] EXPR list->tail.next [L4694-L4697] list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4694-L4697] COND TRUE list && list->head.next && list->head.prev == ((void *)0) && list->tail.prev && list->tail.next == ((void *)0) [L4700] CALL, EXPR aws_linked_list_is_valid_deep(list) [L4734] COND FALSE !(!list) [L4740] const struct aws_linked_list_node *temp = &list->head; [L4743-L4746] _Bool head_reaches_tail = 0 ; VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4751] COND FALSE !(temp == &list->tail) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] CALL, EXPR aws_linked_list_node_next_is_valid(temp) VAL [node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next [L4718] EXPR node->next [L4718] EXPR node && node->next VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] EXPR node && node->next && node->next->prev == node [L4718] EXPR node->next [L4718] EXPR node->next->prev [L4718] EXPR node && node->next && node->next->prev == node VAL [node={6:0}, node={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4718] return node && node->next && node->next->prev == node; [L4756] RET, EXPR aws_linked_list_node_next_is_valid(temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:0}, tl_last_error=0] [L4756] COND FALSE !(!aws_linked_list_node_next_is_valid(temp)) [L4762] EXPR temp->next [L4762] temp = temp->next [L4750] COND TRUE \read(*temp) VAL [head_reaches_tail=0, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4751] COND TRUE temp == &list->tail [L4752-L4753] head_reaches_tail = 1 VAL [head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4764] return head_reaches_tail; VAL [\result=1, head_reaches_tail=1, list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, temp={6:16}, tl_last_error=0] [L4700] RET, EXPR aws_linked_list_is_valid_deep(list) [L4700] return aws_linked_list_is_valid_deep(list); [L4780] RET, EXPR aws_linked_list_is_valid(list) VAL [list={6:0}, list={6:0}, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L4780] CALL __VERIFIER_assert(!((aws_linked_list_is_valid(list)))) VAL [\old(cond)=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] COND TRUE !cond VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] [L223] reach_error() VAL [\old(cond)=0, cond=0, s_can_fail_allocator_static={4:0}, tl_last_error=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 348 mSDsluCounter, 4105 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3256 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1216 IncrementalHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 849 mSDtfsCounter, 1216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=9, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 111 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 571 NumberOfCodeBlocks, 571 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 2028 SizeOfPredicates, 20 NumberOfNonLiveVariables, 269 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 43/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 07:27:09,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE