./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_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 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 03:01:22,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 03:01:22,090 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 03:01:22,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 03:01:22,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 03:01:22,116 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 03:01:22,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 03:01:22,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 03:01:22,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 03:01:22,118 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 03:01:22,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 03:01:22,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 03:01:22,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 03:01:22,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 03:01:22,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 03:01:22,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 03:01:22,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 03:01:22,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 03:01:22,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 03:01:22,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 03:01:22,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 03:01:22,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 03:01:22,125 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 03:01:22,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 03:01:22,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 03:01:22,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 03:01:22,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 03:01:22,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 03:01:22,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 03:01:22,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:01:22,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 03:01:22,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 03:01:22,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 03:01:22,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2024-11-09 03:01:22,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 03:01:22,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 03:01:22,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 03:01:22,347 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 03:01:22,348 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 03:01:22,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2024-11-09 03:01:23,594 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 03:01:23,984 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 03:01:23,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2024-11-09 03:01:24,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32181d7a/630186f9c28b4a87b8cd6b89e667c35b/FLAGbf42c7d83 [2024-11-09 03:01:24,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32181d7a/630186f9c28b4a87b8cd6b89e667c35b [2024-11-09 03:01:24,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 03:01:24,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 03:01:24,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 03:01:24,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 03:01:24,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 03:01:24,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:01:24" (1/1) ... [2024-11-09 03:01:24,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77931158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:24, skipping insertion in model container [2024-11-09 03:01:24,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:01:24" (1/1) ... [2024-11-09 03:01:24,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 03:01:24,416 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_eq_c_str_harness.i[4495,4508] [2024-11-09 03:01:24,425 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_eq_c_str_harness.i[4555,4568] [2024-11-09 03:01:24,904 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,905 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,907 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,908 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,909 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,922 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,922 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,924 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:24,924 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,362 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,363 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:01:25,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 03:01:25,483 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_eq_c_str_harness.i[4495,4508] [2024-11-09 03:01:25,488 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_eq_c_str_harness.i[4555,4568] [2024-11-09 03:01:25,522 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,522 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,522 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,522 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,523 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,531 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,531 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-09 03:01:25,638 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,638 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-09 03:01:25,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-09 03:01:25,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 03:01:25,929 INFO L204 MainTranslator]: Completed translation [2024-11-09 03:01:25,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25 WrapperNode [2024-11-09 03:01:25,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 03:01:25,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 03:01:25,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 03:01:25,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 03:01:25,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,083 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2024-11-09 03:01:26,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 03:01:26,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 03:01:26,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 03:01:26,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 03:01:26,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,156 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [257, 2, 238, 13, 40, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [0, 2, 6, 5, 8, 0]. The 493 writes are split as follows [257, 0, 232, 0, 2, 2]. [2024-11-09 03:01:26,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,208 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 03:01:26,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 03:01:26,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 03:01:26,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 03:01:26,235 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (1/1) ... [2024-11-09 03:01:26,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 03:01:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 03:01:26,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 03:01:26,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 03:01:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-09 03:01:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-09 03:01:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-09 03:01:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-09 03:01:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 03:01:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 03:01:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 03:01:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 03:01:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 03:01:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-09 03:01:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 03:01:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-09 03:01:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-09 03:01:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-09 03:01:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 03:01:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 03:01:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-09 03:01:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-09 03:01:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 03:01:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 03:01:26,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 03:01:26,544 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 03:01:34,065 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-09 03:01:34,065 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 03:01:34,077 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 03:01:34,078 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 03:01:34,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:01:34 BoogieIcfgContainer [2024-11-09 03:01:34,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 03:01:34,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 03:01:34,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 03:01:34,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 03:01:34,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:01:24" (1/3) ... [2024-11-09 03:01:34,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176393ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:01:34, skipping insertion in model container [2024-11-09 03:01:34,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:25" (2/3) ... [2024-11-09 03:01:34,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176393ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:01:34, skipping insertion in model container [2024-11-09 03:01:34,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:01:34" (3/3) ... [2024-11-09 03:01:34,087 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2024-11-09 03:01:34,099 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 03:01:34,099 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 03:01:34,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 03:01:34,160 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;@5fcd4349, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 03:01:34,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 03:01:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 03:01:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 03:01:34,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:01:34,176 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 03:01:34,176 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:01:34,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:01:34,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1835431672, now seen corresponding path program 1 times [2024-11-09 03:01:34,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:01:34,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301111219] [2024-11-09 03:01:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:01:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 03:02:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 03:02:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 03:02:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 03:02:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:02:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 03:02:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 03:02:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 03:02:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-09 03:02:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:02:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-09 03:02:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:45,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 03:02:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 03:02:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 03:02:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 03:02:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 03:02:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 03:02:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 03:02:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 03:02:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 03:02:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 03:02:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 03:02:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-09 03:02:46,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 03:02:46,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301111219] [2024-11-09 03:02:46,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301111219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 03:02:46,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 03:02:46,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 03:02:46,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240997612] [2024-11-09 03:02:46,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 03:02:46,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 03:02:46,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 03:02:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 03:02:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 03:02:46,217 INFO L87 Difference]: Start difference. First operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 03:02:50,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 03:02:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 03:02:52,916 INFO L93 Difference]: Finished difference Result 277 states and 398 transitions. [2024-11-09 03:02:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 03:02:52,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 125 [2024-11-09 03:02:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 03:02:52,925 INFO L225 Difference]: With dead ends: 277 [2024-11-09 03:02:52,925 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 03:02:52,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 03:02:52,932 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 122 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 79 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 03:02:52,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 208 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 03:02:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 03:02:52,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-09 03:02:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 89 states have internal predecessors, (107), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 03:02:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2024-11-09 03:02:52,984 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 125 [2024-11-09 03:02:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 03:02:52,984 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2024-11-09 03:02:52,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-09 03:02:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2024-11-09 03:02:52,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 03:02:52,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 03:02:52,988 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 03:02:52,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 03:02:52,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 03:02:52,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 03:02:52,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2027802770, now seen corresponding path program 1 times [2024-11-09 03:02:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 03:02:52,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705750646] [2024-11-09 03:02:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 03:02:52,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms