./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 10:09:10,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 10:09:10,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 10:09:10,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 10:09:10,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 10:09:10,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 10:09:10,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 10:09:10,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 10:09:10,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 10:09:10,745 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 10:09:10,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 10:09:10,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 10:09:10,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 10:09:10,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 10:09:10,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 10:09:10,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 10:09:10,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 10:09:10,747 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 10:09:10,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 10:09:10,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 10:09:10,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 10:09:10,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 10:09:10,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 10:09:10,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 10:09:10,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 10:09:10,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 10:09:10,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 10:09:10,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 10:09:10,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 10:09:10,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:09:10,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 10:09:10,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 10:09:10,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 10:09:10,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 10:09:10,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 10:09:10,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 10:09:10,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 10:09:10,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 10:09:10,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 10:09:10,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617e08addfe2d13b261907959d3757079a581721356bb3e7b4090decaff2b168 [2024-11-20 10:09:11,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 10:09:11,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 10:09:11,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 10:09:11,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 10:09:11,075 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 10:09:11,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-20 10:09:12,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 10:09:13,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 10:09:13,006 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i [2024-11-20 10:09:13,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1b7da25/dfb035a9e5184b7d92746338d9b01e2f/FLAGe03b5d40d [2024-11-20 10:09:13,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac1b7da25/dfb035a9e5184b7d92746338d9b01e2f [2024-11-20 10:09:13,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 10:09:13,087 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 10:09:13,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 10:09:13,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 10:09:13,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 10:09:13,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:09:13" (1/1) ... [2024-11-20 10:09:13,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e98b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:13, skipping insertion in model container [2024-11-20 10:09:13,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:09:13" (1/1) ... [2024-11-20 10:09:13,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 10:09:13,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2024-11-20 10:09:13,641 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2024-11-20 10:09:15,072 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,073 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,074 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,075 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,076 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,107 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:15,107 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,258 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,259 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,532 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,533 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,561 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,566 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,573 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,574 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,591 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,592 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,593 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,594 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,595 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:09:16,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 10:09:16,727 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4501,4514] [2024-11-20 10:09:16,728 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness.i[4561,4574] [2024-11-20 10:09:16,770 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,771 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,771 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,771 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,780 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,781 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,781 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8255] [2024-11-20 10:09:16,951 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:16,951 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,016 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,017 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,028 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,030 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,030 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,040 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,041 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,041 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,042 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,043 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:09:17,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:09:17,349 INFO L204 MainTranslator]: Completed translation [2024-11-20 10:09:17,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17 WrapperNode [2024-11-20 10:09:17,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 10:09:17,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 10:09:17,352 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 10:09:17,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 10:09:17,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,584 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 403 [2024-11-20 10:09:17,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 10:09:17,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 10:09:17,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 10:09:17,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 10:09:17,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,641 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 5, 257, 13]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 260 writes are split as follows [0, 0, 257, 3]. [2024-11-20 10:09:17,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 10:09:17,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 10:09:17,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 10:09:17,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 10:09:17,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (1/1) ... [2024-11-20 10:09:17,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:09:17,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 10:09:17,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 10:09:17,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 10:09:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-20 10:09:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-20 10:09:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-20 10:09:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-20 10:09:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 10:09:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 10:09:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 10:09:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 10:09:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 10:09:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 10:09:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 10:09:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 10:09:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 10:09:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 10:09:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 10:09:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 10:09:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 10:09:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-20 10:09:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-20 10:09:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 10:09:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 10:09:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 10:09:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 10:09:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 10:09:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 10:09:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 10:09:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 10:09:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 10:09:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 10:09:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-20 10:09:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 10:09:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 10:09:18,105 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 10:09:18,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 10:09:25,061 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2024-11-20 10:09:25,133 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-20 10:09:25,133 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 10:09:25,145 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 10:09:25,146 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 10:09:25,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:09:25 BoogieIcfgContainer [2024-11-20 10:09:25,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 10:09:25,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 10:09:25,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 10:09:25,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 10:09:25,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:09:13" (1/3) ... [2024-11-20 10:09:25,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bdb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:09:25, skipping insertion in model container [2024-11-20 10:09:25,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:09:17" (2/3) ... [2024-11-20 10:09:25,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bdb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:09:25, skipping insertion in model container [2024-11-20 10:09:25,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:09:25" (3/3) ... [2024-11-20 10:09:25,155 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness.i [2024-11-20 10:09:25,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 10:09:25,171 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 10:09:25,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 10:09:25,244 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5216bb2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 10:09:25,244 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 10:09:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-20 10:09:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 10:09:25,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:09:25,258 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 10:09:25,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:09:25,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:09:25,263 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2024-11-20 10:09:25,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:09:25,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392045684] [2024-11-20 10:09:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:09:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:10:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:12,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:10:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:12,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:10:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:12,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-20 10:10:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 10:10:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:10:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 10:10:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-20 10:10:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-20 10:10:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 10:10:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 10:10:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-20 10:10:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 10:10:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 10:10:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:10:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-20 10:10:13,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:10:13,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392045684] [2024-11-20 10:10:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392045684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:10:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:10:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 10:10:13,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515673990] [2024-11-20 10:10:13,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:10:13,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 10:10:13,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:10:13,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 10:10:13,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 10:10:13,232 INFO L87 Difference]: Start difference. First operand has 110 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-20 10:10:17,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:10:21,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 10:10:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 10:10:23,674 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2024-11-20 10:10:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 10:10:23,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2024-11-20 10:10:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 10:10:23,684 INFO L225 Difference]: With dead ends: 217 [2024-11-20 10:10:23,684 INFO L226 Difference]: Without dead ends: 104 [2024-11-20 10:10:23,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 10:10:23,690 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 36 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-20 10:10:23,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 194 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 90 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-20 10:10:23,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-20 10:10:23,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-20 10:10:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 66 states have internal predecessors, (77), 28 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 10:10:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-20 10:10:23,746 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2024-11-20 10:10:23,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 10:10:23,747 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-20 10:10:23,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-20 10:10:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-20 10:10:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-20 10:10:23,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:10:23,752 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 10:10:23,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 10:10:23,753 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:10:23,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:10:23,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2024-11-20 10:10:23,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:10:23,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969234063] [2024-11-20 10:10:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:10:23,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms