./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness_negated.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_string_new_from_c_str_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5910cea77a565141d916d1fcbedfa046ab56f15dda6ed8f11c344bfa9c73fe2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 20:07:00,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 20:07:00,282 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 20:07:00,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 20:07:00,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 20:07:00,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 20:07:00,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 20:07:00,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 20:07:00,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 20:07:00,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 20:07:00,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 20:07:00,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 20:07:00,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 20:07:00,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 20:07:00,318 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 20:07:00,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 20:07:00,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 20:07:00,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 20:07:00,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 20:07:00,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 20:07:00,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 20:07:00,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 20:07:00,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 20:07:00,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 20:07:00,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 20:07:00,325 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 20:07:00,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 20:07:00,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 20:07:00,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 20:07:00,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:07:00,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 20:07:00,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 20:07:00,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 20:07:00,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 20:07:00,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 20:07:00,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 20:07:00,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 20:07:00,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 20:07:00,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 20:07:00,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5910cea77a565141d916d1fcbedfa046ab56f15dda6ed8f11c344bfa9c73fe2 [2024-11-16 20:07:00,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 20:07:00,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 20:07:00,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 20:07:00,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 20:07:00,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 20:07:00,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness_negated.i [2024-11-16 20:07:01,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 20:07:02,162 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 20:07:02,162 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness_negated.i [2024-11-16 20:07:02,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7f11ead9/161f600d3f4041d38e644a471b172093/FLAG57074d5af [2024-11-16 20:07:02,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7f11ead9/161f600d3f4041d38e644a471b172093 [2024-11-16 20:07:02,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 20:07:02,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 20:07:02,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 20:07:02,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 20:07:02,274 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 20:07:02,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:02" (1/1) ... [2024-11-16 20:07:02,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a48457e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:02, skipping insertion in model container [2024-11-16 20:07:02,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:07:02" (1/1) ... [2024-11-16 20:07:02,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 20:07:02,540 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_string_new_from_c_str_harness_negated.i[4499,4512] [2024-11-16 20:07:02,545 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_string_new_from_c_str_harness_negated.i[4559,4572] [2024-11-16 20:07:02,973 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,974 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,974 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,975 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,976 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,991 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,995 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,997 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:02,997 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,365 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,366 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:07:03,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 20:07:03,497 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_string_new_from_c_str_harness_negated.i[4499,4512] [2024-11-16 20:07:03,498 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_string_new_from_c_str_harness_negated.i[4559,4572] [2024-11-16 20:07:03,523 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,527 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,527 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,528 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,528 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,532 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,533 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,533 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,534 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8237] [2024-11-16 20:07:03,712 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,712 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:07:03,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8723-8734] [2024-11-16 20:07:03,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:07:03,930 INFO L204 MainTranslator]: Completed translation [2024-11-16 20:07:03,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03 WrapperNode [2024-11-16 20:07:03,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 20:07:03,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 20:07:03,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 20:07:03,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 20:07:03,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,068 INFO L138 Inliner]: procedures = 679, calls = 2728, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 815 [2024-11-16 20:07:04,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 20:07:04,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 20:07:04,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 20:07:04,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 20:07:04,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,101 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,166 INFO L175 MemorySlicer]: Split 518 memory accesses to 6 slices as follows [2, 257, 238, 5, 2, 14]. 50 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 0, 6, 5, 0, 0]. The 494 writes are split as follows [0, 257, 232, 0, 1, 4]. [2024-11-16 20:07:04,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,204 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 20:07:04,241 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 20:07:04,241 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 20:07:04,242 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 20:07:04,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (1/1) ... [2024-11-16 20:07:04,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:07:04,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:07:04,280 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 20:07:04,288 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 20:07:04,327 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-16 20:07:04,328 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-16 20:07:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 20:07:04,328 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 20:07:04,329 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2024-11-16 20:07:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-11-16 20:07:04,330 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-16 20:07:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 20:07:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-16 20:07:04,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-16 20:07:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-16 20:07:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-16 20:07:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-16 20:07:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-16 20:07:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-16 20:07:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-16 20:07:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-16 20:07:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-16 20:07:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-16 20:07:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 20:07:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 20:07:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 20:07:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 20:07:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 20:07:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 20:07:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 20:07:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 20:07:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 20:07:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 20:07:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 20:07:04,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 20:07:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 20:07:04,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 20:07:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 20:07:04,338 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2024-11-16 20:07:04,338 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2024-11-16 20:07:04,338 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 20:07:04,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 20:07:04,338 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2024-11-16 20:07:04,338 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2024-11-16 20:07:04,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 20:07:04,338 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-11-16 20:07:04,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-11-16 20:07:04,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 20:07:04,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 20:07:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 20:07:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 20:07:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 20:07:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 20:07:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2024-11-16 20:07:04,340 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 20:07:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-11-16 20:07:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 20:07:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 20:07:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2024-11-16 20:07:04,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 20:07:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 20:07:04,596 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 20:07:04,598 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 20:07:04,629 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 20:07:04,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6244: havoc #t~mem472;havoc #t~short473;havoc #t~mem474;havoc #t~mem475;havoc #t~short476; [2024-11-16 20:07:04,665 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 20:07:04,683 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6888: havoc #t~ret561;havoc #t~ite563.base, #t~ite563.offset;havoc #t~ret562.base, #t~ret562.offset; [2024-11-16 20:07:04,702 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 20:07:04,706 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6913: havoc #t~ret569.base, #t~ret569.offset; [2024-11-16 20:07:04,740 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8953-1: assume true; [2024-11-16 20:07:04,742 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8953-1: assume !true; [2024-11-16 20:07:04,931 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2617: havoc #t~ret59#1; [2024-11-16 20:07:12,160 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8929: havoc aws_string_new_from_c_str_#t~nondet1217#1;havoc aws_string_new_from_c_str_#t~ret1218#1;havoc aws_string_new_from_c_str_#t~ret1219#1.base, aws_string_new_from_c_str_#t~ret1219#1.offset; [2024-11-16 20:07:12,219 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-11-16 20:07:12,220 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 20:07:12,230 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 20:07:12,231 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 20:07:12,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:12 BoogieIcfgContainer [2024-11-16 20:07:12,231 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 20:07:12,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 20:07:12,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 20:07:12,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 20:07:12,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:07:02" (1/3) ... [2024-11-16 20:07:12,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dc4ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:12, skipping insertion in model container [2024-11-16 20:07:12,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:07:03" (2/3) ... [2024-11-16 20:07:12,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dc4ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:07:12, skipping insertion in model container [2024-11-16 20:07:12,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:07:12" (3/3) ... [2024-11-16 20:07:12,237 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness_negated.i [2024-11-16 20:07:12,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 20:07:12,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 20:07:12,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 20:07:12,302 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;@3c5bb651, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 20:07:12,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 20:07:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 89 states have (on average 1.1685393258426966) internal successors, (104), 90 states have internal predecessors, (104), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-16 20:07:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 20:07:12,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:07:12,314 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:12,314 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:07:12,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:07:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash -25469962, now seen corresponding path program 1 times [2024-11-16 20:07:12,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:07:12,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279263181] [2024-11-16 20:07:12,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:07:12,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:08:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:28,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:08:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 20:08:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:08:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:08:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 20:08:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 20:08:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 20:08:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 20:08:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:08:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 20:08:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:08:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:08:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:08:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-16 20:08:29,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:08:29,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279263181] [2024-11-16 20:08:29,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279263181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:08:29,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:08:29,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 20:08:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601360764] [2024-11-16 20:08:29,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:08:29,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 20:08:29,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:08:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 20:08:29,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 20:08:29,663 INFO L87 Difference]: Start difference. First operand has 140 states, 89 states have (on average 1.1685393258426966) internal successors, (104), 90 states have internal predecessors, (104), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-16 20:08:33,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:08:38,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:08:42,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []