/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/aws-c-common/aws_array_list_pop_front_harness.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 14:44:49,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 14:44:50,048 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 14:44:50,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 14:44:50,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 14:44:50,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 14:44:50,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 14:44:50,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 14:44:50,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 14:44:50,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 14:44:50,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 14:44:50,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 14:44:50,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 14:44:50,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 14:44:50,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 14:44:50,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 14:44:50,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 14:44:50,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 14:44:50,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 14:44:50,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 14:44:50,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 14:44:50,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 14:44:50,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 14:44:50,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 14:44:50,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 14:44:50,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 14:44:50,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 14:44:50,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 14:44:50,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 14:44:50,092 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 14:44:50,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 14:44:50,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:44:50,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 14:44:50,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 14:44:50,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 14:44:50,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 14:44:50,349 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 14:44:50,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-04 14:44:51,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 14:44:52,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 14:44:52,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_pop_front_harness.i [2024-11-04 14:44:52,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bdb29989/2b1eb99e82fb4d36a45438ea8747325b/FLAG79d0346b6 [2024-11-04 14:44:52,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bdb29989/2b1eb99e82fb4d36a45438ea8747325b [2024-11-04 14:44:52,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 14:44:52,257 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 14:44:52,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 14:44:52,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 14:44:52,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 14:44:52,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:44:52" (1/1) ... [2024-11-04 14:44:52,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71afe18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:52, skipping insertion in model container [2024-11-04 14:44:52,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 02:44:52" (1/1) ... [2024-11-04 14:44:52,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 14:44:52,587 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_array_list_pop_front_harness.i[4498,4511] [2024-11-04 14:44:52,596 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_array_list_pop_front_harness.i[4558,4571] [2024-11-04 14:44:53,124 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 14:44:53,239 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 14:44:53,240 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 14:44:53,241 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 14:44:53,253 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 14:44:53,256 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,257 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,258 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,258 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 14:44:53,258 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,259 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,263 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 14:44:53,264 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 14:44:53,269 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 14:44:53,270 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 14:44:53,280 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,280 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 14:44:53,281 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,281 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 14:44:53,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,282 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 14:44:53,282 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,283 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 14:44:53,284 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,284 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 14:44:53,284 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,285 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 14:44:53,285 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,285 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,543 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 14:44:53,544 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 14:44:53,544 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 14:44:53,545 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 14:44:53,617 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 14:44:53,665 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 14:44:53,665 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 14:44:53,665 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 14:44:53,666 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 14:44:53,674 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,684 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,689 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 14:44:53,689 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 14:44:53,689 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 14:44:53,689 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 14:44:53,690 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 14:44:53,690 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 14:44:53,690 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 14:44:53,690 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 14:44:53,691 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 14:44:53,691 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 14:44:53,691 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 14:44:53,691 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 14:44:53,691 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 14:44:53,691 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 14:44:53,728 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 14:44:53,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 14:44:53,772 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-04 14:44:53,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 14:44:53,799 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_array_list_pop_front_harness.i[4498,4511] [2024-11-04 14:44:53,800 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_array_list_pop_front_harness.i[4558,4571] [2024-11-04 14:44:53,822 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 14:44:53,848 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 14:44:53,849 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 14:44:53,849 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 14:44:53,855 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 14:44:53,856 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,856 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,856 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,856 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 14:44:53,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,857 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,858 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 14:44:53,866 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 14:44:53,867 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 14:44:53,867 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 14:44:53,869 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,870 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 14:44:53,870 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,870 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 14:44:53,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,871 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 14:44:53,871 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,871 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 14:44:53,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,872 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 14:44:53,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,872 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 14:44:53,872 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,873 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,914 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 14:44:53,914 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 14:44:53,915 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 14:44:53,915 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 14:44:53,936 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 14:44:53,941 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 14:44:53,941 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 14:44:53,941 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 14:44:53,941 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 14:44:53,942 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,949 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:53,952 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 14:44:53,953 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 14:44:53,953 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 14:44:53,954 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 14:44:53,954 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 14:44:53,954 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 14:44:53,954 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 14:44:53,955 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 14:44:53,955 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 14:44:53,955 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 14:44:53,955 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 14:44:53,955 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 14:44:53,955 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 14:44:53,956 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 14:44:53,974 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 14:44:53,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 14:44:53,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 14:44:54,010 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_array_list_pop_front_harness.i[4498,4511] [2024-11-04 14:44:54,010 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_array_list_pop_front_harness.i[4558,4571] [2024-11-04 14:44:54,101 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,102 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,111 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,111 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,114 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,114 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,165 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,170 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-04 14:44:54,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7765-7776] [2024-11-04 14:44:54,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 14:44:54,362 INFO L204 MainTranslator]: Completed translation [2024-11-04 14:44:54,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54 WrapperNode [2024-11-04 14:44:54,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 14:44:54,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 14:44:54,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 14:44:54,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 14:44:54,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,509 INFO L138 Inliner]: procedures = 700, calls = 1679, calls flagged for inlining = 51, calls inlined = 10, statements flattened = 684 [2024-11-04 14:44:54,509 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 14:44:54,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 14:44:54,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 14:44:54,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 14:44:54,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,583 INFO L175 MemorySlicer]: Split 323 memory accesses to 6 slices as follows [6, 2, 238, 11, 63, 3]. 74 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [0, 2, 6, 5, 10, 1]. The 240 writes are split as follows [2, 0, 232, 0, 5, 1]. [2024-11-04 14:44:54,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,628 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 14:44:54,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 14:44:54,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 14:44:54,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 14:44:54,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (1/1) ... [2024-11-04 14:44:54,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 14:44:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:44:54,702 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 14:44:54,704 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 14:44:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-11-04 14:44:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-11-04 14:44:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-04 14:44:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-04 14:44:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-04 14:44:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-04 14:44:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-04 14:44:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-04 14:44:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-04 14:44:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-04 14:44:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 14:44:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 14:44:54,726 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-04 14:44:54,726 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-04 14:44:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-04 14:44:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-04 14:44:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-04 14:44:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-04 14:44:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-04 14:44:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-04 14:44:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-04 14:44:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-04 14:44:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-04 14:44:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-04 14:44:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-04 14:44:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-04 14:44:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-04 14:44:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 14:44:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-04 14:44:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-04 14:44:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-04 14:44:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-11-04 14:44:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-04 14:44:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-04 14:44:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-04 14:44:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-04 14:44:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2024-11-04 14:44:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2024-11-04 14:44:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-04 14:44:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-04 14:44:55,030 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 14:44:55,032 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 14:45:03,126 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-04 14:45:03,127 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 14:45:03,145 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 14:45:03,145 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-04 14:45:03,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:45:03 BoogieIcfgContainer [2024-11-04 14:45:03,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 14:45:03,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 14:45:03,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 14:45:03,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 14:45:03,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 02:44:52" (1/3) ... [2024-11-04 14:45:03,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719e5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:45:03, skipping insertion in model container [2024-11-04 14:45:03,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 02:44:54" (2/3) ... [2024-11-04 14:45:03,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3719e5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 02:45:03, skipping insertion in model container [2024-11-04 14:45:03,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 02:45:03" (3/3) ... [2024-11-04 14:45:03,155 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2024-11-04 14:45:03,193 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 14:45:03,194 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 14:45:03,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 14:45:03,342 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;@687f32fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 14:45:03,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 14:45:03,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-04 14:45:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-04 14:45:03,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 14:45:03,355 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:03,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 14:45:03,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 14:45:03,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1083472889, now seen corresponding path program 1 times [2024-11-04 14:45:03,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 14:45:03,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122774599] [2024-11-04 14:45:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 14:45:03,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:03,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:45:03,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 14:45:03,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-04 14:45:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 14:45:09,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 2434 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 14:45:09,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 14:45:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-04 14:45:09,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 14:45:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-04 14:45:12,328 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 14:45:12,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122774599] [2024-11-04 14:45:12,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122774599] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 14:45:12,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 14:45:12,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-04 14:45:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542970857] [2024-11-04 14:45:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 14:45:12,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 14:45:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 14:45:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 14:45:12,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 14:45:12,355 INFO L87 Difference]: Start difference. First operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-04 14:45:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 14:45:12,402 INFO L93 Difference]: Finished difference Result 361 states and 517 transitions. [2024-11-04 14:45:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 14:45:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2024-11-04 14:45:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 14:45:12,416 INFO L225 Difference]: With dead ends: 361 [2024-11-04 14:45:12,416 INFO L226 Difference]: Without dead ends: 179 [2024-11-04 14:45:12,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 14:45:12,428 INFO L432 NwaCegarLoop]: 243 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, 243 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 14:45:12,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 14:45:12,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-04 14:45:12,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-04 14:45:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 106 states have internal predecessors, (125), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-04 14:45:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 238 transitions. [2024-11-04 14:45:12,476 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 238 transitions. Word has length 84 [2024-11-04 14:45:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 14:45:12,476 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 238 transitions. [2024-11-04 14:45:12,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-04 14:45:12,476 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 238 transitions. [2024-11-04 14:45:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-04 14:45:12,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 14:45:12,480 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:12,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-04 14:45:12,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:12,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 14:45:12,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 14:45:12,686 INFO L85 PathProgramCache]: Analyzing trace with hash -579875467, now seen corresponding path program 1 times [2024-11-04 14:45:12,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 14:45:12,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660037891] [2024-11-04 14:45:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 14:45:12,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:45:12,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 14:45:12,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-04 14:45:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 14:45:18,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 2434 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-04 14:45:19,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 14:45:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-04 14:45:20,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 14:45:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-04 14:45:24,877 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 14:45:24,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660037891] [2024-11-04 14:45:24,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1660037891] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 14:45:24,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 14:45:24,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-04 14:45:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571634139] [2024-11-04 14:45:24,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 14:45:24,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-04 14:45:24,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 14:45:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-04 14:45:24,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 14:45:24,881 INFO L87 Difference]: Start difference. First operand 179 states and 238 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-04 14:45:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 14:45:29,881 INFO L93 Difference]: Finished difference Result 323 states and 444 transitions. [2024-11-04 14:45:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-04 14:45:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2024-11-04 14:45:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 14:45:29,886 INFO L225 Difference]: With dead ends: 323 [2024-11-04 14:45:29,886 INFO L226 Difference]: Without dead ends: 181 [2024-11-04 14:45:29,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 14:45:29,888 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 34 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-04 14:45:29,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 785 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-04 14:45:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-04 14:45:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-04 14:45:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2024-11-04 14:45:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2024-11-04 14:45:29,904 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 84 [2024-11-04 14:45:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 14:45:29,904 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2024-11-04 14:45:29,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-04 14:45:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2024-11-04 14:45:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-04 14:45:29,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 14:45:29,906 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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, 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 14:45:29,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-04 14:45:30,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:30,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 14:45:30,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 14:45:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash -647718762, now seen corresponding path program 1 times [2024-11-04 14:45:30,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 14:45:30,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725751168] [2024-11-04 14:45:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 14:45:30,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:30,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:45:30,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 14:45:30,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-04 14:45:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 14:45:36,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 2534 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-04 14:45:36,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 14:45:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-04 14:45:39,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 14:45:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-04 14:45:44,982 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 14:45:44,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1725751168] [2024-11-04 14:45:44,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1725751168] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 14:45:44,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 14:45:44,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-04 14:45:44,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773933945] [2024-11-04 14:45:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 14:45:44,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-04 14:45:44,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 14:45:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-04 14:45:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-04 14:45:44,984 INFO L87 Difference]: Start difference. First operand 181 states and 249 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-04 14:45:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 14:45:52,072 INFO L93 Difference]: Finished difference Result 315 states and 438 transitions. [2024-11-04 14:45:52,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-04 14:45:52,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2024-11-04 14:45:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 14:45:52,077 INFO L225 Difference]: With dead ends: 315 [2024-11-04 14:45:52,077 INFO L226 Difference]: Without dead ends: 181 [2024-11-04 14:45:52,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-04 14:45:52,079 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 76 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-04 14:45:52,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1139 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-04 14:45:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-04 14:45:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-04 14:45:52,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-11-04 14:45:52,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 246 transitions. [2024-11-04 14:45:52,099 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 246 transitions. Word has length 99 [2024-11-04 14:45:52,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 14:45:52,099 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 246 transitions. [2024-11-04 14:45:52,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-04 14:45:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 246 transitions. [2024-11-04 14:45:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-04 14:45:52,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 14:45:52,102 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 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] [2024-11-04 14:45:52,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-04 14:45:52,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:52,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 14:45:52,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 14:45:52,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2067721187, now seen corresponding path program 2 times [2024-11-04 14:45:52,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 14:45:52,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897955381] [2024-11-04 14:45:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 14:45:52,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:45:52,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:45:52,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 14:45:52,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-04 14:45:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 14:45:58,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 2634 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-04 14:45:58,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 14:46:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-04 14:46:03,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 14:46:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-04 14:46:10,581 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 14:46:10,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897955381] [2024-11-04 14:46:10,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1897955381] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-04 14:46:10,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-04 14:46:10,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 10 [2024-11-04 14:46:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950207826] [2024-11-04 14:46:10,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-04 14:46:10,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-04 14:46:10,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 14:46:10,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-04 14:46:10,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-04 14:46:10,584 INFO L87 Difference]: Start difference. First operand 181 states and 246 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-04 14:46:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 14:46:21,852 INFO L93 Difference]: Finished difference Result 324 states and 448 transitions. [2024-11-04 14:46:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-04 14:46:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 114 [2024-11-04 14:46:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 14:46:21,859 INFO L225 Difference]: With dead ends: 324 [2024-11-04 14:46:21,859 INFO L226 Difference]: Without dead ends: 193 [2024-11-04 14:46:21,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-04 14:46:21,861 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 86 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-04 14:46:21,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1548 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-11-04 14:46:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-04 14:46:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2024-11-04 14:46:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 112 states have (on average 1.1875) internal successors, (133), 114 states have internal predecessors, (133), 62 states have call successors, (62), 17 states have call predecessors, (62), 18 states have return successors, (68), 61 states have call predecessors, (68), 61 states have call successors, (68) [2024-11-04 14:46:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 263 transitions. [2024-11-04 14:46:21,896 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 263 transitions. Word has length 114 [2024-11-04 14:46:21,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 14:46:21,897 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 263 transitions. [2024-11-04 14:46:21,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 7 states have internal predecessors, (51), 5 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-04 14:46:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 263 transitions. [2024-11-04 14:46:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-04 14:46:21,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 14:46:21,907 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:46:22,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-04 14:46:22,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:46:22,108 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 14:46:22,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 14:46:22,108 INFO L85 PathProgramCache]: Analyzing trace with hash 639301335, now seen corresponding path program 1 times [2024-11-04 14:46:22,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 14:46:22,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240485955] [2024-11-04 14:46:22,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 14:46:22,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-04 14:46:22,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 14:46:22,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-04 14:46:22,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-04 14:46:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 14:46:29,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-11-04 14:46:29,616 INFO L278 TraceCheckSpWp]: Computing forward predicates...