./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 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_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-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:44:45,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:44:45,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 19:44:45,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:44:45,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:44:45,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:44:45,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:44:45,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:44:45,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:44:45,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:44:45,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:44:45,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:44:45,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:44:45,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:44:45,748 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:44:45,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:44:45,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:44:45,749 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:44:45,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:44:45,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:44:45,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:44:45,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:44:45,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:44:45,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:44:45,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:44:45,752 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:44:45,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:44:45,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:44:45,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:44:45,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:44:45,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:44:45,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:44:45,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:44:45,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:44:45,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:44:45,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:44:45,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:44:45,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:44:45,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:44:45,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2024-11-16 19:44:45,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:44:46,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:44:46,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:44:46,021 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:44:46,022 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:44:46,023 INFO L431 ainManager$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 [2024-11-16 19:44:47,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:44:47,927 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:44:47,927 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2024-11-16 19:44:47,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27c88224/b3eff72bb40f4be38ed3b1cf48eab248/FLAG68f4e3700 [2024-11-16 19:44:47,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d27c88224/b3eff72bb40f4be38ed3b1cf48eab248 [2024-11-16 19:44:47,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:44:47,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:44:47,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:44:47,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:44:48,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:44:48,001 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:47" (1/1) ... [2024-11-16 19:44:48,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d68c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:48, skipping insertion in model container [2024-11-16 19:44:48,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:44:47" (1/1) ... [2024-11-16 19:44:48,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:44:48,497 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] [2024-11-16 19:44:48,508 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] [2024-11-16 19:44:49,127 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,128 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,128 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,129 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,130 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,140 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,141 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,143 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,143 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,705 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,706 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:44:49,842 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:44:49,855 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] [2024-11-16 19:44:49,858 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] [2024-11-16 19:44:49,902 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,902 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,903 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,903 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,903 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,913 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,914 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,914 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:49,917 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:50,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-16 19:44:50,040 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:50,040 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 19:44:50,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-16 19:44:50,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:44:50,333 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:44:50,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50 WrapperNode [2024-11-16 19:44:50,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:44:50,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:44:50,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:44:50,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:44:50,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,539 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2024-11-16 19:44:50,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:44:50,542 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:44:50,542 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:44:50,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:44:50,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,564 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,647 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 13, 40, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 5, 8, 0]. The 493 writes are split as follows [0, 257, 232, 0, 2, 2]. [2024-11-16 19:44:50,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,650 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:44:50,736 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:44:50,736 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:44:50,736 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:44:50,737 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (1/1) ... [2024-11-16 19:44:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:44:50,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:44:50,772 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 19:44:50,778 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 19:44:50,819 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-16 19:44:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-16 19:44:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-16 19:44:50,820 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-16 19:44:50,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 19:44:50,821 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 19:44:50,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 19:44:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 19:44:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:44:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:44:50,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 19:44:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:44:50,823 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-16 19:44:50,823 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:44:50,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:44:50,824 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 19:44:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-16 19:44:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 19:44:50,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 19:44:50,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:44:50,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:44:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:44:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:44:50,827 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 19:44:50,827 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 19:44:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 19:44:50,828 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 19:44:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:44:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:44:50,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:44:50,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:44:51,145 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:44:51,149 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:44:51,191 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 19:44:51,233 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-16 19:44:51,293 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7799: havoc #t~mem828; [2024-11-16 19:44:51,305 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 19:44:51,350 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7385: havoc #t~mem679;havoc #t~mem680;havoc #t~short681;havoc #t~mem682.base, #t~mem682.offset;havoc #t~short683;havoc #t~mem684;havoc #t~mem685;havoc #t~mem686;havoc #t~short687;havoc #t~mem688;havoc #t~mem689.base, #t~mem689.offset;havoc #t~short690;havoc #t~short691;havoc #t~short692;havoc #t~short693; [2024-11-16 19:44:51,362 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 19:44:59,531 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-16 19:44:59,573 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-16 19:44:59,573 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:44:59,588 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:44:59,588 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:44:59,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:59 BoogieIcfgContainer [2024-11-16 19:44:59,589 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:44:59,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:44:59,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:44:59,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:44:59,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:44:47" (1/3) ... [2024-11-16 19:44:59,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f543b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:59, skipping insertion in model container [2024-11-16 19:44:59,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:44:50" (2/3) ... [2024-11-16 19:44:59,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f543b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:44:59, skipping insertion in model container [2024-11-16 19:44:59,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:44:59" (3/3) ... [2024-11-16 19:44:59,596 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2024-11-16 19:44:59,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:44:59,612 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:44:59,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:44:59,679 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;@153f74d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:44:59,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 19:44:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 93 states have (on average 1.2473118279569892) internal successors, (116), 95 states have internal predecessors, (116), 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) [2024-11-16 19:44:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 19:44:59,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:44:59,697 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] [2024-11-16 19:44:59,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:44:59,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:44:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash 738695761, now seen corresponding path program 1 times [2024-11-16 19:44:59,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:44:59,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483977556] [2024-11-16 19:44:59,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:44:59,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:46:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 19:46:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 19:46:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 19:46:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:46:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 19:46:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 19:46:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 19:46:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-16 19:46:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:46:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 19:46:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 19:46:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 19:46:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 19:46:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 19:46:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 19:46:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 19:46:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 19:46:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 19:46:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 19:46:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 19:46:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:46:14,499 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-16 19:46:14,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:46:14,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483977556] [2024-11-16 19:46:14,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483977556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:46:14,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:46:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:46:14,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460450996] [2024-11-16 19:46:14,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:46:14,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:46:14,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:46:14,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:46:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:46:14,534 INFO L87 Difference]: Start difference. First operand has 141 states, 93 states have (on average 1.2473118279569892) internal successors, (116), 95 states have internal predecessors, (116), 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) [2024-11-16 19:46:18,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 19:46:21,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 19:46:21,470 INFO L93 Difference]: Finished difference Result 278 states and 399 transitions. [2024-11-16 19:46:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:46:21,472 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 [2024-11-16 19:46:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 19:46:21,479 INFO L225 Difference]: With dead ends: 278 [2024-11-16 19:46:21,479 INFO L226 Difference]: Without dead ends: 137 [2024-11-16 19:46:21,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:46:21,485 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 122 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 79 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s 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, 6.7s IncrementalHoareTripleChecker+Time [2024-11-16 19:46:21,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 208 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-16 19:46:21,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-16 19:46:21,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-16 19:46:21,523 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) [2024-11-16 19:46:21,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2024-11-16 19:46:21,529 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 125 [2024-11-16 19:46:21,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 19:46:21,529 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2024-11-16 19:46:21,530 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) [2024-11-16 19:46:21,530 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2024-11-16 19:46:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 19:46:21,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 19:46:21,535 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, 1] [2024-11-16 19:46:21,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:46:21,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:46:21,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:46:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1918845699, now seen corresponding path program 1 times [2024-11-16 19:46:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:46:21,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278386056] [2024-11-16 19:46:21,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:46:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms