./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_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 bb0c309b27b585749f4baad3e5a2aa617acc042d97a0a5f067f810d997d3b9d7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:47:06,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:47:06,252 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:47:06,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:47:06,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:47:06,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:47:06,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:47:06,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:47:06,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:47:06,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:47:06,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:47:06,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:47:06,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:47:06,287 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:47:06,287 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:47:06,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:47:06,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:47:06,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:47:06,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:47:06,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:47:06,288 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:47:06,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:47:06,291 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:47:06,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:47:06,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:47:06,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:47:06,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:47:06,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:47:06,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:47:06,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:47:06,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:47:06,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:47:06,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:47:06,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:47:06,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0c309b27b585749f4baad3e5a2aa617acc042d97a0a5f067f810d997d3b9d7 [2024-11-10 10:47:06,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:47:06,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:47:06,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:47:06,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:47:06,525 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:47:06,526 INFO L431 ainManager$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_negated.i [2024-11-10 10:47:07,753 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:47:08,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:47:08,106 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_secure_harness_negated.i [2024-11-10 10:47:08,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c2dbb70/a00585ab498849cf8ed604aade7d9f64/FLAG176174cca [2024-11-10 10:47:08,157 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c2dbb70/a00585ab498849cf8ed604aade7d9f64 [2024-11-10 10:47:08,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:47:08,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:47:08,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:47:08,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:47:08,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:47:08,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:08" (1/1) ... [2024-11-10 10:47:08,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a93af5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:08, skipping insertion in model container [2024-11-10 10:47:08,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:08" (1/1) ... [2024-11-10 10:47:08,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:47:08,520 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_negated.i[4502,4515] [2024-11-10 10:47:08,529 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_negated.i[4562,4575] [2024-11-10 10:47:08,981 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,981 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,981 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,982 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,983 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,997 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,997 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,999 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:08,999 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,428 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,428 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:47:09,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:47:09,537 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_negated.i[4502,4515] [2024-11-10 10:47:09,541 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_negated.i[4562,4575] [2024-11-10 10:47:09,567 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,568 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,568 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,568 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,569 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,572 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,573 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,573 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,574 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8061] [2024-11-10 10:47:09,656 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,656 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:09,664 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8547-8558] [2024-11-10 10:47:09,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:47:09,893 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:47:09,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09 WrapperNode [2024-11-10 10:47:09,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:47:09,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:47:09,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:47:09,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:47:09,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,063 INFO L138 Inliner]: procedures = 680, calls = 2502, calls flagged for inlining = 56, calls inlined = 8, statements flattened = 823 [2024-11-10 10:47:10,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:47:10,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:47:10,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:47:10,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:47:10,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,154 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]. [2024-11-10 10:47:10,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:47:10,224 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:47:10,224 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:47:10,224 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:47:10,224 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (1/1) ... [2024-11-10 10:47:10,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:47:10,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:47:10,260 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) [2024-11-10 10:47:10,265 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 [2024-11-10 10:47:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:47:10,300 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:47:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:47:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:47:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:47:10,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:47:10,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:47:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_secure_zero [2024-11-10 10:47:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_secure_zero [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:47:10,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:47:10,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:47:10,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:47:10,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-10 10:47:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:47:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:47:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:47:10,306 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:47:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-11-10 10:47:10,306 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-11-10 10:47:10,307 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:47:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:47:10,589 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:47:10,591 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:47:10,628 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6868: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:47:10,636 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7112: havoc #t~ret595.base, #t~ret595.offset; [2024-11-10 10:47:10,684 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7169: 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; [2024-11-10 10:47:10,701 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:47:17,791 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6588: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:47:17,841 INFO L? ?]: Removed 72 outVars from TransFormulas that were not future-live. [2024-11-10 10:47:17,841 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:47:17,853 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:47:17,854 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:47:17,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:47:17 BoogieIcfgContainer [2024-11-10 10:47:17,854 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:47:17,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:47:17,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:47:17,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:47:17,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:47:08" (1/3) ... [2024-11-10 10:47:17,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d2294c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:17, skipping insertion in model container [2024-11-10 10:47:17,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:09" (2/3) ... [2024-11-10 10:47:17,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d2294c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:17, skipping insertion in model container [2024-11-10 10:47:17,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:47:17" (3/3) ... [2024-11-10 10:47:17,863 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_secure_harness_negated.i [2024-11-10 10:47:17,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:47:17,876 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:47:17,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:47:17,939 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;@4b359433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:47:17,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:47:17,944 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) [2024-11-10 10:47:17,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 10:47:17,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:47:17,957 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] [2024-11-10 10:47:17,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:47:17,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:47:17,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1056480559, now seen corresponding path program 1 times [2024-11-10 10:47:17,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:47:17,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004040409] [2024-11-10 10:47:17,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:47:17,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:48:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-10 10:48:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-10 10:48:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-10 10:48:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 10:48:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 10:48:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 10:48:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:48:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 10:48:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 10:48:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 10:48:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-10 10:48:35,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:48:35,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004040409] [2024-11-10 10:48:35,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004040409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:48:35,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:48:35,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:48:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307408098] [2024-11-10 10:48:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:48:35,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:48:35,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:48:35,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:48:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:48:35,904 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) [2024-11-10 10:48:40,050 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 [] [2024-11-10 10:48:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:48:41,887 INFO L93 Difference]: Finished difference Result 239 states and 326 transitions. [2024-11-10 10:48:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:48:41,889 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 [2024-11-10 10:48:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:48:41,897 INFO L225 Difference]: With dead ends: 239 [2024-11-10 10:48:41,898 INFO L226 Difference]: Without dead ends: 117 [2024-11-10 10:48:41,900 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 [2024-11-10 10:48:41,902 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, 5.9s IncrementalHoareTripleChecker+Time [2024-11-10 10:48:41,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 101 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-10 10:48:41,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-10 10:48:41,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-10 10:48:41,940 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) [2024-11-10 10:48:41,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 146 transitions. [2024-11-10 10:48:41,943 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 146 transitions. Word has length 77 [2024-11-10 10:48:41,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:48:41,944 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-10 10:48:41,944 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) [2024-11-10 10:48:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 146 transitions. [2024-11-10 10:48:41,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-10 10:48:41,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:48:41,948 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] [2024-11-10 10:48:41,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:48:41,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:48:41,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:48:41,950 INFO L85 PathProgramCache]: Analyzing trace with hash 936650698, now seen corresponding path program 1 times [2024-11-10 10:48:41,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:48:41,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283789878] [2024-11-10 10:48:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:48:41,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms