./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:33:36,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:33:36,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-04 02:33:36,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:33:36,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:33:36,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:33:36,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:33:36,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:33:36,923 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:33:36,923 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:33:36,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:33:36,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:33:36,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:33:36,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:33:36,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:33:36,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:33:36,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:33:36,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:33:36,925 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:33:36,926 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:33:36,926 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:36,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:33:36,927 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2025-03-04 02:33:37,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:33:37,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:33:37,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:33:37,194 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:33:37,194 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:33:37,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-04 02:33:38,401 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0da7927/6a235b5ecdb94c2aac6d77f9a9df8e11/FLAGebf1bcf48 [2025-03-04 02:33:38,800 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:33:38,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2025-03-04 02:33:38,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0da7927/6a235b5ecdb94c2aac6d77f9a9df8e11/FLAGebf1bcf48 [2025-03-04 02:33:38,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0da7927/6a235b5ecdb94c2aac6d77f9a9df8e11 [2025-03-04 02:33:38,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:33:38,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:33:38,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:38,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:33:38,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:33:38,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:38" (1/1) ... [2025-03-04 02:33:38,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611bc13f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:38, skipping insertion in model container [2025-03-04 02:33:38,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:33:38" (1/1) ... [2025-03-04 02:33:38,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:33:39,184 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2025-03-04 02:33:39,193 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2025-03-04 02:33:39,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,748 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,749 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,750 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,757 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,758 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,759 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,760 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:39,761 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,056 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,064 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,073 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,077 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,082 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,118 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,119 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:40,154 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:33:40,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2025-03-04 02:33:40,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2025-03-04 02:33:40,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,220 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,221 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,221 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,226 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,227 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,228 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,229 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,230 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,322 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,323 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,324 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,325 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,325 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,328 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2025-03-04 02:33:40,347 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,348 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-04 02:33:40,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:33:40,508 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:33:40,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40 WrapperNode [2025-03-04 02:33:40,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:33:40,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:40,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:33:40,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:33:40,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,638 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2025-03-04 02:33:40,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:33:40,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:33:40,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:33:40,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:33:40,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,713 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 73, 9, 6, 3]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 10, 5, 0, 1]. The 243 writes are split as follows [232, 0, 6, 2, 2, 1]. [2025-03-04 02:33:40,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,739 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:33:40,771 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:33:40,773 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:33:40,773 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:33:40,774 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (1/1) ... [2025-03-04 02:33:40,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:33:40,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:40,809 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) [2025-03-04 02:33:40,831 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 [2025-03-04 02:33:40,848 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2025-03-04 02:33:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-04 02:33:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-04 02:33:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-04 02:33:40,849 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-04 02:33:40,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-04 02:33:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 02:33:40,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 02:33:40,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:33:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:33:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2025-03-04 02:33:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2025-03-04 02:33:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 02:33:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:33:40,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:33:40,852 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-04 02:33:40,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:33:40,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2025-03-04 02:33:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2025-03-04 02:33:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2025-03-04 02:33:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:40,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:33:40,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:33:41,106 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:33:41,109 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:33:41,145 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-04 02:33:41,147 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc #t~nondet10; [2025-03-04 02:33:41,172 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L263: havoc #t~nondet6; [2025-03-04 02:33:41,196 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-04 02:33:41,203 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7414: havoc #t~ret688.base, #t~ret688.offset; [2025-03-04 02:33:41,298 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2025-03-04 02:33:41,303 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-04 02:33:41,309 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L7361: havoc #t~ret682.base, #t~ret682.offset; [2025-03-04 02:33:47,779 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3355: havoc aws_array_list_pop_front_#t~ret182#1; [2025-03-04 02:33:47,780 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3387: havoc aws_array_list_erase_#t~ret196#1; [2025-03-04 02:33:48,021 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: havoc #t~ret230; [2025-03-04 02:33:48,021 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3432: havoc ~last_item_offset~1; [2025-03-04 02:33:48,097 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2025-03-04 02:33:48,097 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:33:48,106 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:33:48,106 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:33:48,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:48 BoogieIcfgContainer [2025-03-04 02:33:48,106 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:33:48,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:33:48,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:33:48,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:33:48,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:33:38" (1/3) ... [2025-03-04 02:33:48,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e582b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:48, skipping insertion in model container [2025-03-04 02:33:48,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:33:40" (2/3) ... [2025-03-04 02:33:48,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0e582b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:33:48, skipping insertion in model container [2025-03-04 02:33:48,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:33:48" (3/3) ... [2025-03-04 02:33:48,113 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2025-03-04 02:33:48,123 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:33:48,124 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_erase_harness_negated.i that has 21 procedures, 254 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-04 02:33:48,164 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:33:48,173 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;@761bad01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:33:48,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-04 02:33:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2025-03-04 02:33:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:48,187 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:48,188 INFO L218 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, 1, 1, 1] [2025-03-04 02:33:48,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:48,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash -453061669, now seen corresponding path program 1 times [2025-03-04 02:33:48,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:48,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780898279] [2025-03-04 02:33:48,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:33:52,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:53,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:53,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:53,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-04 02:33:53,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:33:53,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780898279] [2025-03-04 02:33:53,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780898279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:33:53,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137936849] [2025-03-04 02:33:53,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:53,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:33:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:33:53,529 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) [2025-03-04 02:33:53,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 02:33:57,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:33:58,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:33:58,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:33:58,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:33:58,389 INFO L256 TraceCheckSpWp]: Trace formula consists of 4132 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 02:33:58,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 02:33:58,414 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-04 02:33:58,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 02:33:58,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137936849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:33:58,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 02:33:58,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 02:33:58,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601060650] [2025-03-04 02:33:58,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:33:58,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 02:33:58,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:33:58,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 02:33:58,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:58,438 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:33:58,480 INFO L93 Difference]: Finished difference Result 499 states and 739 transitions. [2025-03-04 02:33:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 02:33:58,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2025-03-04 02:33:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:33:58,487 INFO L225 Difference]: With dead ends: 499 [2025-03-04 02:33:58,488 INFO L226 Difference]: Without dead ends: 249 [2025-03-04 02:33:58,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 02:33:58,493 INFO L435 NwaCegarLoop]: 345 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, 345 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 [2025-03-04 02:33:58,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 02:33:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2025-03-04 02:33:58,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2025-03-04 02:33:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 140 states have (on average 1.1785714285714286) internal successors, (165), 141 states have internal predecessors, (165), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-03-04 02:33:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 340 transitions. [2025-03-04 02:33:58,535 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 340 transitions. Word has length 87 [2025-03-04 02:33:58,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:33:58,536 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 340 transitions. [2025-03-04 02:33:58,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-04 02:33:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 340 transitions. [2025-03-04 02:33:58,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 02:33:58,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:33:58,540 INFO L218 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, 1, 1, 1] [2025-03-04 02:33:58,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 02:33:58,744 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,SelfDestructingSolverStorable0 [2025-03-04 02:33:58,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:33:58,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:33:58,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1616597031, now seen corresponding path program 1 times [2025-03-04 02:33:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:33:58,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60356080] [2025-03-04 02:33:58,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:33:58,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:02,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 02:34:02,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 02:34:02,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:02,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2025-03-04 02:34:05,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60356080] [2025-03-04 02:34:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60356080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:05,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:05,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 02:34:05,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578439125] [2025-03-04 02:34:05,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:05,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:34:05,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:05,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:34:05,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:34:05,384 INFO L87 Difference]: Start difference. First operand 249 states and 340 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-04 02:34:06,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:06,006 INFO L93 Difference]: Finished difference Result 259 states and 367 transitions. [2025-03-04 02:34:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:34:06,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2025-03-04 02:34:06,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:06,011 INFO L225 Difference]: With dead ends: 259 [2025-03-04 02:34:06,011 INFO L226 Difference]: Without dead ends: 257 [2025-03-04 02:34:06,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 02:34:06,012 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 3 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:06,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1661 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 02:34:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-03-04 02:34:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2025-03-04 02:34:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 144 states have (on average 1.1736111111111112) internal successors, (169), 146 states have internal predecessors, (169), 89 states have call successors, (89), 21 states have call predecessors, (89), 22 states have return successors, (106), 88 states have call predecessors, (106), 88 states have call successors, (106) [2025-03-04 02:34:06,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 364 transitions. [2025-03-04 02:34:06,046 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 364 transitions. Word has length 87 [2025-03-04 02:34:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:06,048 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 364 transitions. [2025-03-04 02:34:06,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-04 02:34:06,048 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 364 transitions. [2025-03-04 02:34:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 02:34:06,050 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:06,050 INFO L218 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, 1, 1, 1] [2025-03-04 02:34:06,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:34:06,055 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:06,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:06,055 INFO L85 PathProgramCache]: Analyzing trace with hash -250056441, now seen corresponding path program 1 times [2025-03-04 02:34:06,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022218367] [2025-03-04 02:34:06,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:06,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:10,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:34:10,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:34:10,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:10,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:11,861 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-04 02:34:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:11,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022218367] [2025-03-04 02:34:11,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022218367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:11,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:11,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 02:34:11,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103288816] [2025-03-04 02:34:11,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:11,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:34:11,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:11,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:34:11,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:34:11,864 INFO L87 Difference]: Start difference. First operand 256 states and 364 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-03-04 02:34:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:14,666 INFO L93 Difference]: Finished difference Result 485 states and 699 transitions. [2025-03-04 02:34:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 02:34:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 102 [2025-03-04 02:34:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:14,669 INFO L225 Difference]: With dead ends: 485 [2025-03-04 02:34:14,669 INFO L226 Difference]: Without dead ends: 268 [2025-03-04 02:34:14,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-04 02:34:14,671 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 119 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:14,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 2020 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-04 02:34:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2025-03-04 02:34:14,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2025-03-04 02:34:14,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 152 states have internal predecessors, (176), 94 states have call successors, (94), 22 states have call predecessors, (94), 23 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-04 02:34:14,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 376 transitions. [2025-03-04 02:34:14,696 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 376 transitions. Word has length 102 [2025-03-04 02:34:14,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:14,696 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 376 transitions. [2025-03-04 02:34:14,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 6 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-03-04 02:34:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 376 transitions. [2025-03-04 02:34:14,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 02:34:14,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:14,698 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:14,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 02:34:14,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:14,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:14,699 INFO L85 PathProgramCache]: Analyzing trace with hash 783121123, now seen corresponding path program 1 times [2025-03-04 02:34:14,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:14,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206784790] [2025-03-04 02:34:14,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:14,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:18,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 02:34:18,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 02:34:18,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:18,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-03-04 02:34:20,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206784790] [2025-03-04 02:34:20,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206784790] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:20,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:20,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 02:34:20,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227838698] [2025-03-04 02:34:20,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:20,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:34:20,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:20,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:34:20,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:34:20,481 INFO L87 Difference]: Start difference. First operand 268 states and 376 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-04 02:34:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:21,045 INFO L93 Difference]: Finished difference Result 274 states and 381 transitions. [2025-03-04 02:34:21,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:34:21,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 102 [2025-03-04 02:34:21,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:21,048 INFO L225 Difference]: With dead ends: 274 [2025-03-04 02:34:21,048 INFO L226 Difference]: Without dead ends: 272 [2025-03-04 02:34:21,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 02:34:21,050 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 3 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:21,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1667 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 02:34:21,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2025-03-04 02:34:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2025-03-04 02:34:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 153 states have (on average 1.1699346405228759) internal successors, (179), 155 states have internal predecessors, (179), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-04 02:34:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 379 transitions. [2025-03-04 02:34:21,073 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 379 transitions. Word has length 102 [2025-03-04 02:34:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:21,074 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 379 transitions. [2025-03-04 02:34:21,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-03-04 02:34:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 379 transitions. [2025-03-04 02:34:21,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-04 02:34:21,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:21,076 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:21,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:34:21,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:21,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -278898653, now seen corresponding path program 1 times [2025-03-04 02:34:21,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:21,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186131458] [2025-03-04 02:34:21,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:21,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:24,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-04 02:34:24,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-04 02:34:24,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:24,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-04 02:34:25,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:25,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186131458] [2025-03-04 02:34:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186131458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:34:25,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:34:25,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 02:34:25,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439849227] [2025-03-04 02:34:25,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:34:25,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:34:25,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:34:25,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:34:25,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:34:25,674 INFO L87 Difference]: Start difference. First operand 272 states and 379 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-04 02:34:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 02:34:25,871 INFO L93 Difference]: Finished difference Result 321 states and 437 transitions. [2025-03-04 02:34:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 02:34:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 116 [2025-03-04 02:34:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 02:34:25,874 INFO L225 Difference]: With dead ends: 321 [2025-03-04 02:34:25,874 INFO L226 Difference]: Without dead ends: 274 [2025-03-04 02:34:25,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:34:25,875 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 0 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 02:34:25,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1677 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 02:34:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-03-04 02:34:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2025-03-04 02:34:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 155 states have (on average 1.167741935483871) internal successors, (181), 157 states have internal predecessors, (181), 94 states have call successors, (94), 23 states have call predecessors, (94), 24 states have return successors, (106), 93 states have call predecessors, (106), 93 states have call successors, (106) [2025-03-04 02:34:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2025-03-04 02:34:25,893 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 116 [2025-03-04 02:34:25,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 02:34:25,894 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2025-03-04 02:34:25,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-04 02:34:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2025-03-04 02:34:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-04 02:34:25,896 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 02:34:25,896 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:34:25,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 02:34:25,897 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-04 02:34:25,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:34:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash 330229283, now seen corresponding path program 1 times [2025-03-04 02:34:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:34:25,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707177586] [2025-03-04 02:34:25,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:34:29,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-04 02:34:29,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-04 02:34:29,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:34:29,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:34:31,496 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-04 02:34:31,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:34:31,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707177586] [2025-03-04 02:34:31,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707177586] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 02:34:31,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112567684] [2025-03-04 02:34:31,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:34:31,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 02:34:31,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:34:31,499 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) [2025-03-04 02:34:31,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 02:34:35,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes.