./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_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_destroy_secure_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 20:04:42,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 20:04:42,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 20:04:42,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 20:04:42,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 20:04:42,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 20:04:42,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 20:04:42,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 20:04:42,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 20:04:42,484 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 20:04:42,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 20:04:42,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 20:04:42,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 20:04:42,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 20:04:42,488 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 20:04:42,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 20:04:42,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 20:04:42,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 20:04:42,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 20:04:42,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 20:04:42,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 20:04:42,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 20:04:42,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 20:04:42,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 20:04:42,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 20:04:42,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 20:04:42,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 20:04:42,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 20:04:42,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 20:04:42,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:04:42,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 20:04:42,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 20:04:42,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 20:04:42,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 20:04:42,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 20:04:42,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 20:04:42,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 20:04:42,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 20:04:42,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 20:04:42,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c2f07b3e0aa6972fd7ec3621a91e2c0b72d907bfa5004c1888c101ab8ad4836 [2024-11-16 20:04:42,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 20:04:42,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 20:04:42,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 20:04:42,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 20:04:42,803 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 20:04:42,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2024-11-16 20:04:44,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 20:04:44,779 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 20:04:44,780 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_destroy_secure_harness_negated.i [2024-11-16 20:04:44,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409de55b0/03983486e00f4eb9b1f9f64467b04ab5/FLAG9dd3d313a [2024-11-16 20:04:44,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/409de55b0/03983486e00f4eb9b1f9f64467b04ab5 [2024-11-16 20:04:44,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 20:04:44,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 20:04:44,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 20:04:44,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 20:04:44,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 20:04:44,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:04:44" (1/1) ... [2024-11-16 20:04:44,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f420935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:44, skipping insertion in model container [2024-11-16 20:04:44,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:04:44" (1/1) ... [2024-11-16 20:04:45,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 20:04:45,352 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_destroy_secure_harness_negated.i[4499,4512] [2024-11-16 20:04:45,360 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_destroy_secure_harness_negated.i[4559,4572] [2024-11-16 20:04:46,036 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,037 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,037 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,038 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,039 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,049 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,050 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,052 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,592 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,593 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:04:46,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 20:04:46,799 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_destroy_secure_harness_negated.i[4499,4512] [2024-11-16 20:04:46,800 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_destroy_secure_harness_negated.i[4559,4572] [2024-11-16 20:04:46,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,846 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,847 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,847 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,848 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,853 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,857 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,857 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:46,858 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:47,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8221] [2024-11-16 20:04:47,038 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:47,038 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-16 20:04:47,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8707-8718] [2024-11-16 20:04:47,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 20:04:47,288 INFO L204 MainTranslator]: Completed translation [2024-11-16 20:04:47,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47 WrapperNode [2024-11-16 20:04:47,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 20:04:47,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 20:04:47,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 20:04:47,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 20:04:47,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,482 INFO L138 Inliner]: procedures = 682, calls = 2778, calls flagged for inlining = 60, calls inlined = 8, statements flattened = 818 [2024-11-16 20:04:47,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 20:04:47,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 20:04:47,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 20:04:47,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 20:04:47,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,599 INFO L175 MemorySlicer]: Split 531 memory accesses to 6 slices as follows [2, 257, 238, 16, 6, 12]. 48 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [2, 0, 6, 16, 5, 0]. The 493 writes are split as follows [0, 257, 232, 0, 0, 4]. [2024-11-16 20:04:47,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,642 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 20:04:47,684 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 20:04:47,684 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 20:04:47,684 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 20:04:47,685 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (1/1) ... [2024-11-16 20:04:47,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 20:04:47,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 20:04:47,718 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 20:04:47,724 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 20:04:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-16 20:04:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-16 20:04:47,768 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2024-11-16 20:04:47,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-16 20:04:47,769 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 20:04:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 20:04:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 20:04:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 20:04:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 20:04:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-16 20:04:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 20:04:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 20:04:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 20:04:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 20:04:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 20:04:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 20:04:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure aws_secure_zero [2024-11-16 20:04:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_secure_zero [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-16 20:04:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-16 20:04:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-16 20:04:47,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-16 20:04:47,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-16 20:04:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-16 20:04:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-16 20:04:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 20:04:47,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 20:04:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 20:04:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 20:04:47,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 20:04:47,777 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-16 20:04:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-16 20:04:47,778 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 20:04:47,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 20:04:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 20:04:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 20:04:47,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 20:04:48,126 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 20:04:48,129 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 20:04:48,165 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6874: havoc #t~malloc557.base, #t~malloc557.offset; [2024-11-16 20:04:48,192 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 20:04:48,194 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L266: havoc #t~nondet9; [2024-11-16 20:04:48,219 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-16 20:04:48,347 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc #t~ret543#1.base, #t~ret543#1.offset; [2024-11-16 20:04:56,226 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-16 20:04:56,226 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 20:04:56,239 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 20:04:56,240 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 20:04:56,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:04:56 BoogieIcfgContainer [2024-11-16 20:04:56,241 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 20:04:56,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 20:04:56,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 20:04:56,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 20:04:56,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:04:44" (1/3) ... [2024-11-16 20:04:56,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557afeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:04:56, skipping insertion in model container [2024-11-16 20:04:56,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:47" (2/3) ... [2024-11-16 20:04:56,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557afeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:04:56, skipping insertion in model container [2024-11-16 20:04:56,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:04:56" (3/3) ... [2024-11-16 20:04:56,250 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_destroy_secure_harness_negated.i [2024-11-16 20:04:56,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 20:04:56,265 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 20:04:56,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 20:04:56,334 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;@7424e5ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 20:04:56,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 20:04:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 20:04:56,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 20:04:56,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:04:56,353 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-16 20:04:56,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:04:56,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:04:56,359 INFO L85 PathProgramCache]: Analyzing trace with hash 834785803, now seen corresponding path program 1 times [2024-11-16 20:04:56,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:04:56,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143911873] [2024-11-16 20:04:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:04:56,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 20:06:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:10,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 20:06:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:10,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:06:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:10,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 20:06:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 20:06:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 20:06:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 20:06:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 20:06:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-16 20:06:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 20:06:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 20:06:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-16 20:06:11,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 20:06:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143911873] [2024-11-16 20:06:11,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143911873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 20:06:11,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 20:06:11,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 20:06:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070960803] [2024-11-16 20:06:11,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 20:06:11,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 20:06:11,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 20:06:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 20:06:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 20:06:11,105 INFO L87 Difference]: Start difference. First operand has 103 states, 69 states have (on average 1.1884057971014492) internal successors, (82), 70 states have internal predecessors, (82), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 20:06:15,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:06:19,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 20:06:21,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 20:06:21,830 INFO L93 Difference]: Finished difference Result 206 states and 254 transitions. [2024-11-16 20:06:21,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 20:06:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2024-11-16 20:06:21,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 20:06:21,842 INFO L225 Difference]: With dead ends: 206 [2024-11-16 20:06:21,842 INFO L226 Difference]: Without dead ends: 101 [2024-11-16 20:06:21,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 20:06:21,855 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 48 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-16 20:06:21,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 130 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 95 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-16 20:06:21,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-16 20:06:21,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2024-11-16 20:06:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 61 states have internal predecessors, (69), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-16 20:06:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 108 transitions. [2024-11-16 20:06:21,915 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 108 transitions. Word has length 63 [2024-11-16 20:06:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 20:06:21,919 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 108 transitions. [2024-11-16 20:06:21,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-16 20:06:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 108 transitions. [2024-11-16 20:06:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 20:06:21,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 20:06:21,924 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-16 20:06:21,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 20:06:21,925 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 20:06:21,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 20:06:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -728130583, now seen corresponding path program 1 times [2024-11-16 20:06:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 20:06:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401015979] [2024-11-16 20:06:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 20:06:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms