./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_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-023d838-m [2024-11-10 10:47:19,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:47:19,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:47:19,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:47:19,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:47:19,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:47:19,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:47:19,922 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:47:19,922 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:47:19,923 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:47:19,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:47:19,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:47:19,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:47:19,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:47:19,929 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:47:19,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:47:19,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:47:19,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:47:19,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:47:19,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:47:19,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:47:19,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:47:19,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:47:19,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:47:19,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:47:19,936 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:47:19,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:47:19,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:47:19,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:47:19,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:47:19,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:47:19,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:47:19,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:47:19,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:47:19,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:47:19,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:47:19,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:47:19,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:47:19,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:47:19,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e4ccc391c063e90fb229c8b3638d2f1089d6ba2ff288522cf06bf650b1be9e5 [2024-11-10 10:47:20,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:47:20,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:47:20,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:47:20,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:47:20,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:47:20,289 INFO L431 ainManager$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 [2024-11-10 10:47:21,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:47:22,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:47:22,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness.i [2024-11-10 10:47:22,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767fac480/f22cc7c3250b489e86f0c39e81a6f21c/FLAGc534f0d64 [2024-11-10 10:47:22,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/767fac480/f22cc7c3250b489e86f0c39e81a6f21c [2024-11-10 10:47:22,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:47:22,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:47:22,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:47:22,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:47:22,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:47:22,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:22" (1/1) ... [2024-11-10 10:47:22,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca5b38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:22, skipping insertion in model container [2024-11-10 10:47:22,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:47:22" (1/1) ... [2024-11-10 10:47:22,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:47:22,648 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] [2024-11-10 10:47:22,662 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] [2024-11-10 10:47:23,455 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,456 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,456 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,457 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,458 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,477 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,479 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,481 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:23,482 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,064 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,065 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:47:24,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:47:24,238 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] [2024-11-10 10:47:24,241 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] [2024-11-10 10:47:24,281 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,283 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,283 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,283 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,284 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,289 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,290 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,291 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,291 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8277] [2024-11-10 10:47:24,501 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,501 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:47:24,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8763-8774] [2024-11-10 10:47:24,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:47:24,793 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:47:24,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24 WrapperNode [2024-11-10 10:47:24,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:47:24,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:47:24,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:47:24,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:47:24,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:24,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,004 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2024-11-10 10:47:25,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:47:25,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:47:25,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:47:25,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:47:25,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,116 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 6, 40, 13]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 0, 8, 5]. The 493 writes are split as follows [0, 257, 232, 2, 2, 0]. [2024-11-10 10:47:25,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,117 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:47:25,201 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:47:25,203 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:47:25,203 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:47:25,204 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (1/1) ... [2024-11-10 10:47:25,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:47:25,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:47:25,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:47:25,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:47:25,286 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-10 10:47:25,287 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-10 10:47:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-10 10:47:25,288 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-10 10:47:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:47:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:47:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:47:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:47:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:47:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:47:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:47:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:47:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:47:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-10 10:47:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:47:25,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:47:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:47:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:47:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:47:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 10:47:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:47:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:47:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:47:25,293 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:47:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-10 10:47:25,293 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-10 10:47:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:47:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:47:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:47:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:47:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:47:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-10 10:47:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:47:25,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:47:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:47:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-10 10:47:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:47:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:47:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:47:25,660 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:47:25,665 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:47:25,708 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6886: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-10 10:47:25,759 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc nondet_size_t_#t~nondet6#1; [2024-11-10 10:47:25,810 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7799: havoc #t~mem828; [2024-11-10 10:47:25,825 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-10 10:47:25,872 INFO L1247 $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; [2024-11-10 10:47:25,896 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:47:33,959 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6600: havoc aws_byte_buf_is_bounded_#t~mem477#1; [2024-11-10 10:47:34,010 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-10 10:47:34,010 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:47:34,027 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:47:34,027 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:47:34,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:47:34 BoogieIcfgContainer [2024-11-10 10:47:34,028 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:47:34,033 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:47:34,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:47:34,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:47:34,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:47:22" (1/3) ... [2024-11-10 10:47:34,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b77689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:34, skipping insertion in model container [2024-11-10 10:47:34,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:47:24" (2/3) ... [2024-11-10 10:47:34,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b77689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:47:34, skipping insertion in model container [2024-11-10 10:47:34,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:47:34" (3/3) ... [2024-11-10 10:47:34,040 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness.i [2024-11-10 10:47:34,057 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:47:34,057 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:47:34,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:47:34,140 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;@73cbab3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:47:34,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:47:34,146 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) [2024-11-10 10:47:34,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-10 10:47:34,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:47:34,163 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] [2024-11-10 10:47:34,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:47:34,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:47:34,169 INFO L85 PathProgramCache]: Analyzing trace with hash 738695761, now seen corresponding path program 1 times [2024-11-10 10:47:34,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:47:34,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567206043] [2024-11-10 10:47:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:47:34,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:48:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:48:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-10 10:48:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:48:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 10:48:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:48:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-10 10:48:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-10 10:48:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 10:48:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 10:48:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 10:48:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 10:48:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-10 10:48:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 10:48:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-10 10:48:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 10:48:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:48:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:48:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 10:48:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:48:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-10 10:48:48,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:48:48,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567206043] [2024-11-10 10:48:48,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567206043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:48:48,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:48:48,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:48:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397519999] [2024-11-10 10:48:48,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:48:48,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:48:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:48:48,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:48:48,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:48:48,742 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) [2024-11-10 10:48:52,948 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 [] [2024-11-10 10:48:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:48:55,771 INFO L93 Difference]: Finished difference Result 278 states and 399 transitions. [2024-11-10 10:48:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:48:55,775 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 [2024-11-10 10:48:55,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:48:55,784 INFO L225 Difference]: With dead ends: 278 [2024-11-10 10:48:55,784 INFO L226 Difference]: Without dead ends: 137 [2024-11-10 10:48:55,787 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 [2024-11-10 10:48:55,790 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, 6.8s IncrementalHoareTripleChecker+Time [2024-11-10 10:48:55,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 208 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2024-11-10 10:48:55,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-10 10:48:55,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-10 10:48:55,836 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) [2024-11-10 10:48:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2024-11-10 10:48:55,840 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 125 [2024-11-10 10:48:55,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:48:55,841 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2024-11-10 10:48:55,841 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) [2024-11-10 10:48:55,842 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2024-11-10 10:48:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-10 10:48:55,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:48:55,845 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] [2024-11-10 10:48:55,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:48:55,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:48:55,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:48:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1918845699, now seen corresponding path program 1 times [2024-11-10 10:48:55,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:48:55,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154654663] [2024-11-10 10:48:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:48:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms