./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_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 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:14:18,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:14:18,622 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:14:18,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:14:18,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:14:18,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:14:18,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:14:18,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:14:18,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:14:18,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:14:18,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:14:18,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:14:18,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:14:18,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:14:18,662 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:14:18,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:14:18,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:14:18,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:14:18,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:14:18,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:14:18,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:14:18,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:14:18,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:14:18,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:14:18,665 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:14:18,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:14:18,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:14:18,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:14:18,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:14:18,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:14:18,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:14:18,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:14:18,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:14:18,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:14:18,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:14:18,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:14:18,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:14:18,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:14:18,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:14:18,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81878f133cf1520a898ab1dccc3c4ea8564ccc1e7b92efe6b8b73fb69d10ec78 [2024-11-09 03:14:18,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:14:18,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:14:18,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:14:18,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:14:18,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:14:18,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2024-11-09 03:14:20,461 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:14:20,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:14:20,951 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_hash_callback_string_eq_harness_negated.i [2024-11-09 03:14:20,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7dc5313/9f55f09a081740639cfd866576704919/FLAGf2c97e456 [2024-11-09 03:14:21,022 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7dc5313/9f55f09a081740639cfd866576704919 [2024-11-09 03:14:21,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:14:21,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:14:21,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:14:21,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:14:21,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:14:21,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:14:21" (1/1) ... [2024-11-09 03:14:21,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340dbcca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:21, skipping insertion in model container [2024-11-09 03:14:21,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:14:21" (1/1) ... [2024-11-09 03:14:21,244 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:14:21,603 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_negated.i[4501,4514] [2024-11-09 03:14:21,614 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_negated.i[4561,4574] [2024-11-09 03:14:22,376 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,377 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,378 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,379 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,380 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,393 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,394 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,396 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:22,397 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,014 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,015 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,273 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,274 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,293 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,294 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,298 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,299 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,315 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,316 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:14:23,482 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:14:23,502 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_negated.i[4501,4514] [2024-11-09 03:14:23,503 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_negated.i[4561,4574] [2024-11-09 03:14:23,547 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,547 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,548 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,548 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,549 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,555 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,555 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,556 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,556 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,665 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8223] [2024-11-09 03:14:23,667 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,670 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,759 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,759 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,773 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,777 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,779 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,788 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,788 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,789 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,789 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,790 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,790 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,791 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:14:23,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:14:24,160 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:14:24,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24 WrapperNode [2024-11-09 03:14:24,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:14:24,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:14:24,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:14:24,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:14:24,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,340 INFO L138 Inliner]: procedures = 757, calls = 3256, calls flagged for inlining = 77, calls inlined = 7, statements flattened = 403 [2024-11-09 03:14:24,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:14:24,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:14:24,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:14:24,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:14:24,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,403 INFO L175 MemorySlicer]: Split 277 memory accesses to 4 slices as follows [2, 257, 5, 13]. 93 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5, 0]. The 260 writes are split as follows [0, 257, 0, 3]. [2024-11-09 03:14:24,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:14:24,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:14:24,461 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:14:24,461 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:14:24,462 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (1/1) ... [2024-11-09 03:14:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:14:24,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:14:24,500 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) [2024-11-09 03:14:24,506 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 [2024-11-09 03:14:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-09 03:14:24,550 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-09 03:14:24,550 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:14:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:14:24,551 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:14:24,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:14:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:14:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:14:24,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:14:24,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:14:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:14:24,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:14:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:14:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:14:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:14:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:14:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:14:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:14:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2024-11-09 03:14:24,556 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:14:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:14:24,557 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:14:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure aws_c_string_is_valid [2024-11-09 03:14:24,558 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_c_string_is_valid [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:14:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:14:24,887 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:14:24,891 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:14:32,022 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !true; [2024-11-09 03:14:32,123 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-11-09 03:14:32,123 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:14:32,138 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:14:32,139 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 03:14:32,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:14:32 BoogieIcfgContainer [2024-11-09 03:14:32,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:14:32,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:14:32,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:14:32,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:14:32,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:14:21" (1/3) ... [2024-11-09 03:14:32,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad9e59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:14:32, skipping insertion in model container [2024-11-09 03:14:32,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:14:24" (2/3) ... [2024-11-09 03:14:32,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad9e59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:14:32, skipping insertion in model container [2024-11-09 03:14:32,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:14:32" (3/3) ... [2024-11-09 03:14:32,150 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_callback_string_eq_harness_negated.i [2024-11-09 03:14:32,168 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:14:32,169 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:14:32,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:14:32,233 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;@66c5fe8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:14:32,234 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:14:32,238 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) [2024-11-09 03:14:32,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 03:14:32,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:14:32,252 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] [2024-11-09 03:14:32,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:14:32,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:14:32,258 INFO L85 PathProgramCache]: Analyzing trace with hash 436511225, now seen corresponding path program 1 times [2024-11-09 03:14:32,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:14:32,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061675313] [2024-11-09 03:14:32,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:14:32,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:15:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:15:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:15:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:15:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:15:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:15:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 03:15:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 03:15:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-09 03:15:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 03:15:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 03:15:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 03:15:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 03:15:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 03:15:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:15:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 03:15:24,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:15:24,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061675313] [2024-11-09 03:15:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061675313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:15:24,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:15:24,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 03:15:24,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256649211] [2024-11-09 03:15:24,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:15:24,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 03:15:24,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:15:24,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 03:15:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 03:15:24,932 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) [2024-11-09 03:15:29,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 03:15:33,482 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 [] [2024-11-09 03:15:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:15:35,403 INFO L93 Difference]: Finished difference Result 217 states and 299 transitions. [2024-11-09 03:15:35,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 03:15:35,405 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 [2024-11-09 03:15:35,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:15:35,414 INFO L225 Difference]: With dead ends: 217 [2024-11-09 03:15:35,414 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 03:15:35,419 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 [2024-11-09 03:15:35,423 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 [2024-11-09 03:15:35,424 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] [2024-11-09 03:15:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 03:15:35,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-09 03:15:35,479 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) [2024-11-09 03:15:35,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 132 transitions. [2024-11-09 03:15:35,483 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 132 transitions. Word has length 93 [2024-11-09 03:15:35,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:15:35,487 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 132 transitions. [2024-11-09 03:15:35,487 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) [2024-11-09 03:15:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 132 transitions. [2024-11-09 03:15:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 03:15:35,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:15:35,491 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] [2024-11-09 03:15:35,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:15:35,492 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:15:35,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:15:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1648273971, now seen corresponding path program 1 times [2024-11-09 03:15:35,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:15:35,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744108539] [2024-11-09 03:15:35,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:15:35,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms