./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_byte_buf_write_u8_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 fbd83f7e524270f26b355be3b6fdf116e3fc11da746439b12c865fa2fec80a91 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:45:49,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:45:49,840 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 08:45:49,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:45:49,848 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:45:49,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:45:49,868 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:45:49,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:45:49,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:45:49,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:45:49,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:45:49,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:45:49,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:45:49,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:45:49,871 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:45:49,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:45:49,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:45:49,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:45:49,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:45:49,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:45:49,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:45:49,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:45:49,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:45:49,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:45:49,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:45:49,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:45:49,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:45:49,878 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:45:49,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:45:49,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:45:49,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:45:49,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:45:49,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:45:49,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:45:49,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:45:49,884 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:45:49,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:45:49,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:45:49,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:45:49,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbd83f7e524270f26b355be3b6fdf116e3fc11da746439b12c865fa2fec80a91 [2024-11-12 08:45:50,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:45:50,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:45:50,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:45:50,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:45:50,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:45:50,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i [2024-11-12 08:45:51,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:45:52,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:45:52,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_u8_harness_negated.i [2024-11-12 08:45:52,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef244f7e2/7ac26b1cb9b44b249e882789566c5b63/FLAGb74265d81 [2024-11-12 08:45:52,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef244f7e2/7ac26b1cb9b44b249e882789566c5b63 [2024-11-12 08:45:52,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:45:52,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:45:52,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:45:52,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:45:52,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:45:52,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:45:52" (1/1) ... [2024-11-12 08:45:52,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6baa186e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:52, skipping insertion in model container [2024-11-12 08:45:52,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:45:52" (1/1) ... [2024-11-12 08:45:52,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:45:52,814 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_byte_buf_write_u8_harness_negated.i[4495,4508] [2024-11-12 08:45:52,823 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_byte_buf_write_u8_harness_negated.i[4555,4568] [2024-11-12 08:45:53,660 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,665 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,665 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,666 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,667 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,685 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:53,686 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,249 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,250 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:45:54,364 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:45:54,378 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_byte_buf_write_u8_harness_negated.i[4495,4508] [2024-11-12 08:45:54,379 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_byte_buf_write_u8_harness_negated.i[4555,4568] [2024-11-12 08:45:54,429 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,430 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,430 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,431 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,431 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,437 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,438 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,439 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,439 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8259] [2024-11-12 08:45:54,582 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,582 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-12 08:45:54,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8745-8756] [2024-11-12 08:45:54,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:45:54,914 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:45:54,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54 WrapperNode [2024-11-12 08:45:54,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:45:54,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:45:54,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:45:54,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:45:54,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,139 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 63, calls inlined = 10, statements flattened = 871 [2024-11-12 08:45:55,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:45:55,140 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:45:55,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:45:55,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:45:55,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,259 INFO L175 MemorySlicer]: Split 560 memory accesses to 7 slices as follows [2, 2, 257, 238, 47, 8, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [0, 2, 0, 6, 8, 5, 0]. The 496 writes are split as follows [1, 0, 257, 232, 3, 1, 2]. [2024-11-12 08:45:55,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:45:55,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:45:55,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:45:55,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:45:55,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (1/1) ... [2024-11-12 08:45:55,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:45:55,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:45:55,433 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) [2024-11-12 08:45:55,436 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 [2024-11-12 08:45:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-12 08:45:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-12 08:45:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 08:45:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-12 08:45:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-12 08:45:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 08:45:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 08:45:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 08:45:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 08:45:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 08:45:55,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 08:45:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-12 08:45:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:45:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:45:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-12 08:45:55,569 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-12 08:45:55,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 08:45:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 08:45:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 08:45:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 08:45:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 08:45:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 08:45:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-12 08:45:55,571 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-12 08:45:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 08:45:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 08:45:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 08:45:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-12 08:45:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-12 08:45:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-12 08:45:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-12 08:45:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-12 08:45:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 08:45:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 08:45:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 08:45:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 08:45:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 08:45:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 08:45:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 08:45:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 08:45:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 08:45:55,918 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:45:55,920 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:46:04,835 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-12 08:46:04,836 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:46:04,854 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:46:04,854 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 08:46:04,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:46:04 BoogieIcfgContainer [2024-11-12 08:46:04,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:46:04,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:46:04,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:46:04,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:46:04,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:45:52" (1/3) ... [2024-11-12 08:46:04,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38905a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:46:04, skipping insertion in model container [2024-11-12 08:46:04,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:45:54" (2/3) ... [2024-11-12 08:46:04,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38905a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:46:04, skipping insertion in model container [2024-11-12 08:46:04,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:46:04" (3/3) ... [2024-11-12 08:46:04,865 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_u8_harness_negated.i [2024-11-12 08:46:04,883 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:46:04,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:46:04,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:46:04,954 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;@3ac9c1eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:46:04,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 08:46:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 87 states have internal predecessors, (106), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-12 08:46:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 08:46:04,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:46:04,976 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:46:04,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:46:04,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:46:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash -276254992, now seen corresponding path program 1 times [2024-11-12 08:46:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:46:04,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766234376] [2024-11-12 08:46:04,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:46:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:47:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-12 08:47:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-12 08:47:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-12 08:47:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-12 08:47:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-12 08:47:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-12 08:47:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-12 08:47:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-12 08:47:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 08:47:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 08:47:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 08:47:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-12 08:47:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:47:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-12 08:47:21,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:47:21,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766234376] [2024-11-12 08:47:21,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766234376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:47:21,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:47:21,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:47:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064249248] [2024-11-12 08:47:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:47:21,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:47:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:47:21,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:47:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:47:21,440 INFO L87 Difference]: Start difference. First operand has 132 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 87 states have internal predecessors, (106), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 08:47:25,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-12 08:47:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 08:47:27,856 INFO L93 Difference]: Finished difference Result 259 states and 368 transitions. [2024-11-12 08:47:27,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:47:27,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2024-11-12 08:47:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 08:47:27,867 INFO L225 Difference]: With dead ends: 259 [2024-11-12 08:47:27,867 INFO L226 Difference]: Without dead ends: 127 [2024-11-12 08:47:27,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:47:27,874 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 75 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-12 08:47:27,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 117 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2024-11-12 08:47:27,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-12 08:47:27,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-12 08:47:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 83 states have internal predecessors, (99), 34 states have call successors, (34), 10 states have call predecessors, (34), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-12 08:47:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 166 transitions. [2024-11-12 08:47:27,919 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 166 transitions. Word has length 86 [2024-11-12 08:47:27,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 08:47:27,920 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 166 transitions. [2024-11-12 08:47:27,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-12 08:47:27,920 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 166 transitions. [2024-11-12 08:47:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 08:47:27,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 08:47:27,923 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:47:27,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:47:27,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 08:47:27,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:47:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash 466581732, now seen corresponding path program 1 times [2024-11-12 08:47:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:47:27,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538100601] [2024-11-12 08:47:27,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:47:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms