./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_clean_up_secure_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 ee87a50cadbe7f10c8f1c265f4107449c896fee4805223b18eafcf84379da0a0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:44:11,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:44:11,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:44:11,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:44:11,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:44:11,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:44:11,859 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:44:11,860 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:44:11,860 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:44:11,863 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:44:11,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:44:11,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:44:11,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:44:11,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:44:11,864 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:44:11,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:44:11,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:44:11,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:44:11,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:44:11,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:44:11,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:44:11,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:44:11,867 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:44:11,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:44:11,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:44:11,868 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:44:11,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:44:11,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:44:11,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:44:11,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:44:11,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:44:11,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:44:11,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:44:11,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:44:11,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee87a50cadbe7f10c8f1c265f4107449c896fee4805223b18eafcf84379da0a0 [2024-11-16 19:44:12,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:44:12,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:44:12,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:44:12,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:44:12,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:44:12,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2024-11-16 19:44:13,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:44:13,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:44:13,693 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness.i [2024-11-16 19:44:13,730 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f5e8d47/9b0fb6f62238417b91836b6f66e254fe/FLAGb05392907 [2024-11-16 19:44:13,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1f5e8d47/9b0fb6f62238417b91836b6f66e254fe [2024-11-16 19:44:13,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:44:13,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:44:13,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:44:13,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:44:13,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:44:13,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:13" (1/1) ... [2024-11-16 19:44:13,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9ef129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:13, skipping insertion in model container [2024-11-16 19:44:13,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:13" (1/1) ... [2024-11-16 19:44:13,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:44:14,097 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_clean_up_secure_harness.i[4502,4515] [2024-11-16 19:44:14,103 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_clean_up_secure_harness.i[4562,4575] [2024-11-16 19:44:14,536 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,537 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,539 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,540 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,541 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,549 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,549 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,551 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,551 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,980 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:14,985 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:44:15,089 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:44:15,101 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_clean_up_secure_harness.i[4502,4515] [2024-11-16 19:44:15,105 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_clean_up_secure_harness.i[4562,4575] [2024-11-16 19:44:15,137 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,139 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,139 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,142 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,142 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,147 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,147 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,148 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,148 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8073] [2024-11-16 19:44:15,288 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,289 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:15,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8559-8570] [2024-11-16 19:44:15,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:44:15,454 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:44:15,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15 WrapperNode [2024-11-16 19:44:15,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:44:15,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:44:15,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:44:15,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:44:15,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,611 INFO L138 Inliner]: procedures = 680, calls = 2502, calls flagged for inlining = 56, calls inlined = 8, statements flattened = 823 [2024-11-16 19:44:15,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:44:15,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:44:15,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:44:15,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:44:15,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,691 INFO L175 MemorySlicer]: Split 536 memory accesses to 5 slices as follows [2, 257, 238, 32, 7]. 48 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 6, 4, 5]. The 497 writes are split as follows [0, 257, 232, 7, 1]. [2024-11-16 19:44:15,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:44:15,733 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:44:15,733 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:44:15,734 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:44:15,734 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (1/1) ... [2024-11-16 19:44:15,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:44:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:44:15,763 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) [2024-11-16 19:44:15,765 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 [2024-11-16 19:44:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 19:44:15,799 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 19:44:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:44:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:44:15,800 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:44:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:44:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:44:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:44:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:44:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:44:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2024-11-16 19:44:15,805 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:44:15,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:44:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:44:15,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:44:15,806 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-16 19:44:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:44:15,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:44:15,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:44:15,808 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:44:15,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-16 19:44:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-16 19:44:15,809 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:44:15,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:44:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:44:15,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:44:16,033 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:44:16,035 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:44:16,071 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6880: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:44:16,077 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7124: havoc #t~ret595.base, #t~ret595.offset; [2024-11-16 19:44:16,128 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7181: havoc #t~mem620;havoc #t~mem621;havoc #t~short622;havoc #t~mem623.base, #t~mem623.offset;havoc #t~short624;havoc #t~mem625;havoc #t~mem626;havoc #t~mem627;havoc #t~short628;havoc #t~mem629;havoc #t~mem630.base, #t~mem630.offset;havoc #t~short631;havoc #t~short632;havoc #t~short633;havoc #t~short634; [2024-11-16 19:44:16,143 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:44:23,101 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-16 19:44:23,149 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2024-11-16 19:44:23,149 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:44:23,159 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:44:23,160 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:44:23,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:23 BoogieIcfgContainer [2024-11-16 19:44:23,160 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:44:23,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:44:23,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:44:23,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:44:23,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:44:13" (1/3) ... [2024-11-16 19:44:23,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7697307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:23, skipping insertion in model container [2024-11-16 19:44:23,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:15" (2/3) ... [2024-11-16 19:44:23,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7697307a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:23, skipping insertion in model container [2024-11-16 19:44:23,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:23" (3/3) ... [2024-11-16 19:44:23,166 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_secure_harness.i [2024-11-16 19:44:23,177 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:44:23,178 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:44:23,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:44:23,227 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;@409cf326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:44:23,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:44:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 82 states have internal predecessors, (99), 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) [2024-11-16 19:44:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 19:44:23,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:44:23,241 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-16 19:44:23,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:44:23,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:44:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1056480559, now seen corresponding path program 1 times [2024-11-16 19:44:23,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:44:23,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078483616] [2024-11-16 19:44:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:44:23,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:45:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:41,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-16 19:45:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:41,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 19:45:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:41,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 19:45:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:41,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:45:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:41,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 19:45:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 19:45:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 19:45:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 19:45:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 19:45:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 19:45:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 19:45:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:45:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 19:45:42,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:45:42,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078483616] [2024-11-16 19:45:42,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078483616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:45:42,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:45:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:45:42,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581608461] [2024-11-16 19:45:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:45:42,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:45:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:45:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:45:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:45:42,114 INFO L87 Difference]: Start difference. First operand has 121 states, 81 states have (on average 1.2222222222222223) internal successors, (99), 82 states have internal predecessors, (99), 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 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 19:45:46,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:45:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:45:47,998 INFO L93 Difference]: Finished difference Result 239 states and 326 transitions. [2024-11-16 19:45:47,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:45:48,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2024-11-16 19:45:48,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:45:48,006 INFO L225 Difference]: With dead ends: 239 [2024-11-16 19:45:48,007 INFO L226 Difference]: Without dead ends: 117 [2024-11-16 19:45:48,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:45:48,011 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 69 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 19:45:48,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 101 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 19:45:48,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-16 19:45:48,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-16 19:45:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 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) [2024-11-16 19:45:48,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 146 transitions. [2024-11-16 19:45:48,044 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 146 transitions. Word has length 77 [2024-11-16 19:45:48,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:45:48,045 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-16 19:45:48,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 19:45:48,045 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 146 transitions. [2024-11-16 19:45:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 19:45:48,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:45:48,047 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-11-16 19:45:48,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:45:48,048 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:45:48,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:45:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 936650698, now seen corresponding path program 1 times [2024-11-16 19:45:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:45:48,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876311352] [2024-11-16 19:45:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:45:48,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms