./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.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 cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 10:00:31,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 10:00:31,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 10:00:31,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 10:00:31,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 10:00:31,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 10:00:31,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 10:00:31,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 10:00:31,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 10:00:31,848 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 10:00:31,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 10:00:31,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 10:00:31,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 10:00:31,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 10:00:31,850 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 10:00:31,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 10:00:31,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 10:00:31,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 10:00:31,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 10:00:31,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 10:00:31,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 10:00:31,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 10:00:31,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 10:00:31,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 10:00:31,853 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 10:00:31,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 10:00:31,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 10:00:31,854 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 10:00:31,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 10:00:31,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:00:31,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 10:00:31,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 10:00:31,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 10:00:31,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 10:00:31,863 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab1c092802d28f475b8a467f14dab6a3f796dc1a4441d8517361eeec98aa4cb [2024-11-20 10:00:32,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 10:00:32,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 10:00:32,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 10:00:32,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 10:00:32,138 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 10:00:32,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-11-20 10:00:33,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 10:00:34,225 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 10:00:34,226 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-11-20 10:00:34,274 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdbd8fab/97e124f0f42143328bfa8bed42c8c440/FLAGe5423fd2b [2024-11-20 10:00:34,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cdbd8fab/97e124f0f42143328bfa8bed42c8c440 [2024-11-20 10:00:34,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 10:00:34,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 10:00:34,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 10:00:34,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 10:00:34,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 10:00:34,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:00:34" (1/1) ... [2024-11-20 10:00:34,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d0efe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:34, skipping insertion in model container [2024-11-20 10:00:34,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:00:34" (1/1) ... [2024-11-20 10:00:34,433 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 10:00:34,789 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_write_from_whole_buffer_harness-1.i[4510,4523] [2024-11-20 10:00:34,803 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_write_from_whole_buffer_harness-1.i[4570,4583] [2024-11-20 10:00:35,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,876 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,877 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,878 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,879 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,891 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,892 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,893 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:35,894 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,530 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:00:36,716 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 10:00:36,733 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_write_from_whole_buffer_harness-1.i[4510,4523] [2024-11-20 10:00:36,734 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_write_from_whole_buffer_harness-1.i[4570,4583] [2024-11-20 10:00:36,771 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,772 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,773 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,779 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,784 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,785 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,785 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-11-20 10:00:36,919 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,920 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-20 10:00:36,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-11-20 10:00:36,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 10:00:37,227 INFO L204 MainTranslator]: Completed translation [2024-11-20 10:00:37,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37 WrapperNode [2024-11-20 10:00:37,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 10:00:37,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 10:00:37,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 10:00:37,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 10:00:37,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,448 INFO L138 Inliner]: procedures = 680, calls = 2662, calls flagged for inlining = 58, calls inlined = 5, statements flattened = 900 [2024-11-20 10:00:37,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 10:00:37,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 10:00:37,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 10:00:37,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 10:00:37,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,476 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,562 INFO L175 MemorySlicer]: Split 592 memory accesses to 5 slices as follows [6, 2, 257, 78, 249]. 43 percent of accesses are in the largest equivalence class. The 29 initializations are split as follows [0, 2, 0, 16, 11]. The 499 writes are split as follows [2, 0, 257, 7, 233]. [2024-11-20 10:00:37,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 10:00:37,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 10:00:37,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 10:00:37,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 10:00:37,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (1/1) ... [2024-11-20 10:00:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 10:00:37,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 10:00:37,712 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) [2024-11-20 10:00:37,718 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 [2024-11-20 10:00:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-20 10:00:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-20 10:00:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 10:00:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-20 10:00:37,773 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-20 10:00:37,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 10:00:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 10:00:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 10:00:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 10:00:37,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 10:00:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 10:00:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 10:00:37,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 10:00:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 10:00:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 10:00:37,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 10:00:37,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-20 10:00:37,777 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 10:00:37,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 10:00:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 10:00:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 10:00:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-20 10:00:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-20 10:00:37,778 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-20 10:00:37,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_byte_buf_has_allocated_buffer_member [2024-11-20 10:00:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 10:00:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 10:00:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-20 10:00:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-20 10:00:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-20 10:00:37,779 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-20 10:00:37,779 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-11-20 10:00:37,780 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-11-20 10:00:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 10:00:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 10:00:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 10:00:37,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 10:00:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 10:00:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-20 10:00:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 10:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-11-20 10:00:37,783 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 10:00:37,783 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-20 10:00:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-20 10:00:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-20 10:00:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-20 10:00:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_bounded [2024-11-20 10:00:37,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_bounded [2024-11-20 10:00:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 10:00:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 10:00:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 10:00:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 10:00:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 10:00:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_buf_equivalence [2024-11-20 10:00:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_buf_equivalence [2024-11-20 10:00:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 10:00:37,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 10:00:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 10:00:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 10:00:37,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 10:00:38,103 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 10:00:38,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 10:00:46,673 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-20 10:00:46,674 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 10:00:46,694 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 10:00:46,695 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 10:00:46,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:00:46 BoogieIcfgContainer [2024-11-20 10:00:46,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 10:00:46,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 10:00:46,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 10:00:46,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 10:00:46,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:00:34" (1/3) ... [2024-11-20 10:00:46,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cec43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:00:46, skipping insertion in model container [2024-11-20 10:00:46,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:37" (2/3) ... [2024-11-20 10:00:46,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71cec43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:00:46, skipping insertion in model container [2024-11-20 10:00:46,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:00:46" (3/3) ... [2024-11-20 10:00:46,706 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_from_whole_buffer_harness-1.i [2024-11-20 10:00:46,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 10:00:46,722 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 10:00:46,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 10:00:46,802 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;@63ffbb8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 10:00:46,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 10:00:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-20 10:00:46,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 10:00:46,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 10:00:46,829 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2024-11-20 10:00:46,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 10:00:46,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 10:00:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1289631181, now seen corresponding path program 1 times [2024-11-20 10:00:46,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 10:00:46,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913169814] [2024-11-20 10:00:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 10:00:46,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 10:02:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 10:02:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 10:02:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-20 10:02:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 10:02:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-20 10:02:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 10:02:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 10:02:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:02,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 10:02:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 10:02:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 10:02:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 10:02:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-20 10:02:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-20 10:02:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 10:02:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 10:02:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-20 10:02:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-20 10:02:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-20 10:02:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 10:02:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 10:02:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 10:02:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-20 10:02:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-20 10:02:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 10:02:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 10:02:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-20 10:02:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-20 10:02:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 10:02:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-20 10:02:03,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 10:02:03,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913169814] [2024-11-20 10:02:03,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913169814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 10:02:03,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 10:02:03,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 10:02:03,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956797040] [2024-11-20 10:02:03,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 10:02:03,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 10:02:03,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 10:02:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 10:02:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 10:02:03,583 INFO L87 Difference]: Start difference. First operand has 187 states, 111 states have (on average 1.2072072072072073) internal successors, (134), 113 states have internal predecessors, (134), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (29), 5 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 10:02:07,799 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 []