/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 20:55:00,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 20:55:00,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 20:55:00,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 20:55:00,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 20:55:00,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 20:55:00,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 20:55:00,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 20:55:00,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 20:55:00,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 20:55:00,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 20:55:00,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 20:55:00,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 20:55:00,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 20:55:00,776 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 20:55:00,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 20:55:00,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 20:55:00,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 20:55:00,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 20:55:00,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 20:55:00,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 20:55:00,778 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 20:55:00,778 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 20:55:00,779 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 20:55:00,779 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 20:55:00,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 20:55:00,780 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 20:55:00,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 20:55:00,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 20:55:00,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 20:55:00,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 20:55:00,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 20:55:00,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 20:55:00,782 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 20:55:00,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 20:55:00,782 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 20:55:00,783 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:00,783 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 20:55:00,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 20:55:00,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 20:55:00,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 20:55:00,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:01,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 20:55:01,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 20:55:01,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 20:55:01,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 20:55:01,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 20:55:01,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i [2024-11-04 20:55:02,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 20:55:02,877 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 20:55:02,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i [2024-11-04 20:55:02,918 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26099f8/a6869baf3e30443094bc41aca5698574/FLAG22d084362 [2024-11-04 20:55:02,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c26099f8/a6869baf3e30443094bc41aca5698574 [2024-11-04 20:55:02,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 20:55:02,939 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 20:55:02,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 20:55:02,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 20:55:02,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 20:55:02,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:55:02" (1/1) ... [2024-11-04 20:55:02,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2711284d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:02, skipping insertion in model container [2024-11-04 20:55:02,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:55:02" (1/1) ... [2024-11-04 20:55:03,038 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 20:55:03,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2024-11-04 20:55:03,345 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2024-11-04 20:55:04,078 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,184 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,185 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,186 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,200 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,202 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,203 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,206 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,206 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,207 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,210 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,211 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,215 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,216 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,226 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,226 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,227 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,227 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,230 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,231 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,234 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,234 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,235 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,235 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,237 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,238 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,551 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,551 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,552 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,552 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,648 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,652 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,653 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:55:04,685 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 20:55:04,739 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 20:55:04,744 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2024-11-04 20:55:04,744 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2024-11-04 20:55:04,772 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,795 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,797 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,798 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,803 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,804 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,805 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,805 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,806 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,810 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,810 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,812 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,813 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,820 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,820 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,820 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,821 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,825 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,826 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,826 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,826 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,827 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,828 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,828 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,828 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,828 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,829 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:04,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,899 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,899 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,931 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,934 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,935 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-04 20:55:04,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:55:04,944 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 20:55:04,959 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4490,4503] [2024-11-04 20:55:04,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_bytes_harness.i[4550,4563] [2024-11-04 20:55:05,006 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,007 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,007 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,008 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,016 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,017 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,018 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,018 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,019 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,019 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,020 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,020 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 20:55:05,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 20:55:05,308 WARN L710 CHandler]: The following functions are not defined or handled internally: aws_last_error, aws_array_list_ensure_capacity [2024-11-04 20:55:05,316 INFO L204 MainTranslator]: Completed translation [2024-11-04 20:55:05,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05 WrapperNode [2024-11-04 20:55:05,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 20:55:05,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 20:55:05,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 20:55:05,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 20:55:05,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,429 INFO L138 Inliner]: procedures = 687, calls = 972, calls flagged for inlining = 44, calls inlined = 6, statements flattened = 61 [2024-11-04 20:55:05,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 20:55:05,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 20:55:05,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 20:55:05,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 20:55:05,441 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,450 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,476 INFO L175 MemorySlicer]: Split 13 memory accesses to 3 slices as follows [2, 5, 6]. 46 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 3 writes are split as follows [0, 0, 3]. [2024-11-04 20:55:05,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 20:55:05,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 20:55:05,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 20:55:05,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 20:55:05,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (1/1) ... [2024-11-04 20:55:05,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 20:55:05,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 20:55:05,568 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) [2024-11-04 20:55:05,571 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 [2024-11-04 20:55:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2024-11-04 20:55:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2024-11-04 20:55:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-04 20:55:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-04 20:55:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 20:55:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 20:55:05,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-04 20:55:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2024-11-04 20:55:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2024-11-04 20:55:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 20:55:05,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 20:55:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 20:55:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-04 20:55:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-04 20:55:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-04 20:55:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-04 20:55:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-04 20:55:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-04 20:55:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-04 20:55:05,884 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 20:55:05,887 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 20:55:06,230 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-04 20:55:06,231 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 20:55:06,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 20:55:06,242 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-04 20:55:06,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:55:06 BoogieIcfgContainer [2024-11-04 20:55:06,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 20:55:06,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 20:55:06,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 20:55:06,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 20:55:06,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:55:02" (1/3) ... [2024-11-04 20:55:06,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@865817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:55:06, skipping insertion in model container [2024-11-04 20:55:06,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:55:05" (2/3) ... [2024-11-04 20:55:06,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@865817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:55:06, skipping insertion in model container [2024-11-04 20:55:06,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:55:06" (3/3) ... [2024-11-04 20:55:06,250 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_bytes_harness.i [2024-11-04 20:55:06,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 20:55:06,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 20:55:06,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 20:55:06,320 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;@3fd8ee54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 20:55:06,321 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 20:55:06,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-04 20:55:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-04 20:55:06,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:55:06,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:55:06,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:55:06,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:55:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash -868059006, now seen corresponding path program 1 times [2024-11-04 20:55:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:55:06,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466191079] [2024-11-04 20:55:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:55:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:06,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:55:06,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:55:06,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 20:55:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:55:06,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 20:55:06,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:55:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-04 20:55:06,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:55:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-04 20:55:06,794 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:55:06,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466191079] [2024-11-04 20:55:06,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1466191079] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 20:55:06,795 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 20:55:06,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-04 20:55:06,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276473017] [2024-11-04 20:55:06,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 20:55:06,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 20:55:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:55:06,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 20:55:06,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 20:55:06,831 INFO L87 Difference]: Start difference. First operand has 63 states, 41 states have (on average 1.146341463414634) internal successors, (47), 42 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-04 20:55:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 20:55:06,858 INFO L93 Difference]: Finished difference Result 118 states and 140 transitions. [2024-11-04 20:55:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 20:55:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 55 [2024-11-04 20:55:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 20:55:06,866 INFO L225 Difference]: With dead ends: 118 [2024-11-04 20:55:06,867 INFO L226 Difference]: Without dead ends: 58 [2024-11-04 20:55:06,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 20:55:06,873 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-04 20:55:06,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 20:55:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-04 20:55:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-04 20:55:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-04 20:55:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2024-11-04 20:55:06,920 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 55 [2024-11-04 20:55:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 20:55:06,921 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2024-11-04 20:55:06,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-04 20:55:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2024-11-04 20:55:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-04 20:55:06,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:55:06,925 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 20:55:06,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-04 20:55:07,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:07,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:55:07,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:55:07,127 INFO L85 PathProgramCache]: Analyzing trace with hash -362172612, now seen corresponding path program 1 times [2024-11-04 20:55:07,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:55:07,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785400203] [2024-11-04 20:55:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:55:07,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:07,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:55:07,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:55:07,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 20:55:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:55:07,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-04 20:55:07,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:55:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 20:55:07,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:55:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-04 20:55:08,036 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:55:08,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785400203] [2024-11-04 20:55:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1785400203] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 20:55:08,036 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 20:55:08,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 11 [2024-11-04 20:55:08,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242565201] [2024-11-04 20:55:08,037 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 20:55:08,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-04 20:55:08,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:55:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-04 20:55:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-04 20:55:08,040 INFO L87 Difference]: Start difference. First operand 58 states and 64 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-04 20:55:08,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 20:55:08,322 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2024-11-04 20:55:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-04 20:55:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 55 [2024-11-04 20:55:08,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 20:55:08,325 INFO L225 Difference]: With dead ends: 64 [2024-11-04 20:55:08,325 INFO L226 Difference]: Without dead ends: 60 [2024-11-04 20:55:08,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-04 20:55:08,328 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 3 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-04 20:55:08,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 492 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-04 20:55:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-04 20:55:08,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-04 20:55:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 9 states have call predecessors, (12), 8 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-04 20:55:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2024-11-04 20:55:08,342 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 55 [2024-11-04 20:55:08,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 20:55:08,343 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2024-11-04 20:55:08,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 7 states have internal predecessors, (37), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-04 20:55:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2024-11-04 20:55:08,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-04 20:55:08,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 20:55:08,346 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-04 20:55:08,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-04 20:55:08,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:08,548 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 20:55:08,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 20:55:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 543084274, now seen corresponding path program 1 times [2024-11-04 20:55:08,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 20:55:08,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397654593] [2024-11-04 20:55:08,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 20:55:08,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 20:55:08,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 20:55:08,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 20:55:08,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 20:55:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 20:55:08,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-04 20:55:08,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 20:55:09,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-04 20:55:09,290 INFO L349 Elim1Store]: treesize reduction 98, result has 50.3 percent of original size [2024-11-04 20:55:09,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 48 treesize of output 108 [2024-11-04 20:55:09,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 31 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 71 [2024-11-04 20:55:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-04 20:55:42,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 20:55:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-04 20:55:48,069 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 20:55:48,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397654593] [2024-11-04 20:55:48,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1397654593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-04 20:55:48,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-04 20:55:48,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 17] total 43 [2024-11-04 20:55:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742926618] [2024-11-04 20:55:48,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-04 20:55:48,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-04 20:55:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 20:55:48,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-04 20:55:48,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1670, Unknown=0, NotChecked=0, Total=1806 [2024-11-04 20:55:48,073 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 43 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 34 states have internal predecessors, (79), 11 states have call successors, (18), 5 states have call predecessors, (18), 12 states have return successors, (17), 11 states have call predecessors, (17), 9 states have call successors, (17) [2024-11-04 20:55:52,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-04 20:55:57,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-04 20:56:01,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-04 20:56:05,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-04 20:56:10,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-04 20:56:14,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-04 20:56:16,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]