./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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_swap_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 f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:47:54,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:47:54,070 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-08 17:47:54,076 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:47:54,079 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:47:54,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:47:54,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:47:54,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:47:54,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:47:54,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:47:54,105 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:47:54,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:47:54,106 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:54,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:47:54,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:47:54,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:47:54,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:47:54,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:47:54,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:47:54,107 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 -> f13d223fa70379f8cd684d69e06e46c80e83d85aad0c82c0b48e3125c1bca56a [2025-03-08 17:47:54,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:47:54,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:47:54,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:47:54,379 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:47:54,379 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:47:54,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-03-08 17:47:55,593 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eddd7c8c/0a1082e092b54f6fa357bf480412a01d/FLAG87a87d513 [2025-03-08 17:47:56,128 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:47:56,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness_negated.i [2025-03-08 17:47:56,159 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eddd7c8c/0a1082e092b54f6fa357bf480412a01d/FLAG87a87d513 [2025-03-08 17:47:56,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eddd7c8c/0a1082e092b54f6fa357bf480412a01d [2025-03-08 17:47:56,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:47:56,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:47:56,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:56,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:47:56,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:47:56,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:56" (1/1) ... [2025-03-08 17:47:56,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21906d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:56, skipping insertion in model container [2025-03-08 17:47:56,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:47:56" (1/1) ... [2025-03-08 17:47:56,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:47:56,461 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_swap_harness_negated.i[4493,4506] [2025-03-08 17:47:56,468 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_swap_harness_negated.i[4553,4566] [2025-03-08 17:47:57,014 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,015 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,016 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,017 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,029 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,030 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,031 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,032 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,034 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,035 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,036 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,374 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,382 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,387 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:57,473 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:47:57,484 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_swap_harness_negated.i[4493,4506] [2025-03-08 17:47:57,485 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_swap_harness_negated.i[4553,4566] [2025-03-08 17:47:57,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,539 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,540 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,546 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,547 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,548 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,647 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,648 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,649 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,652 WARN L1731 CHandler]: Possible shadowing of function index [2025-03-08 17:47:57,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7743-7754] [2025-03-08 17:47:57,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:47:57,822 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:47:57,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57 WrapperNode [2025-03-08 17:47:57,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:47:57,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:57,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:47:57,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:47:57,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:57,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:57,931 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 651 [2025-03-08 17:47:57,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:47:57,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:47:57,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:47:57,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:47:57,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:57,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:57,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,007 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 3, 5, 39, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 1, 2, 5, 5]. The 238 writes are split as follows [232, 0, 1, 1, 1, 3, 0]. [2025-03-08 17:47:58,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,007 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,033 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:47:58,066 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:47:58,067 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:47:58,067 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:47:58,068 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (1/1) ... [2025-03-08 17:47:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:47:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:47:58,101 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) [2025-03-08 17:47:58,106 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 [2025-03-08 17:47:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:47:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2025-03-08 17:47:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2025-03-08 17:47:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2025-03-08 17:47:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2025-03-08 17:47:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2025-03-08 17:47:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2025-03-08 17:47:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 17:47:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 17:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 17:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 17:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 17:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2025-03-08 17:47:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 17:47:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 17:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2025-03-08 17:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-08 17:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2025-03-08 17:47:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2025-03-08 17:47:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2025-03-08 17:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2025-03-08 17:47:58,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 17:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 17:47:58,431 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:47:58,433 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:47:58,474 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2025-03-08 17:47:58,511 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2025-03-08 17:47:58,541 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L267: havoc nondet_uint8_t_#t~nondet10#1; [2025-03-08 17:47:58,651 INFO L1307 $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; [2025-03-08 17:47:58,655 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2025-03-08 17:47:58,700 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3527: havoc #t~ret286; [2025-03-08 17:47:58,710 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7364: havoc #t~ret682.base, #t~ret682.offset; [2025-03-08 17:48:03,952 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2025-03-08 17:48:03,952 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:48:03,960 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:48:03,960 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:48:03,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:48:03 BoogieIcfgContainer [2025-03-08 17:48:03,961 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:48:03,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:48:03,963 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:48:03,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:48:03,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:47:56" (1/3) ... [2025-03-08 17:48:03,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fb34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:48:03, skipping insertion in model container [2025-03-08 17:48:03,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:47:57" (2/3) ... [2025-03-08 17:48:03,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fb34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:48:03, skipping insertion in model container [2025-03-08 17:48:03,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:48:03" (3/3) ... [2025-03-08 17:48:03,968 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness_negated.i [2025-03-08 17:48:03,979 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:48:03,981 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_array_list_swap_harness_negated.i that has 16 procedures, 178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 17:48:04,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:48:04,035 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;@64f35161, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:48:04,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 17:48:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-03-08 17:48:04,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-08 17:48:04,053 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:04,054 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:04,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:04,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 206988999, now seen corresponding path program 1 times [2025-03-08 17:48:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:04,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587755251] [2025-03-08 17:48:04,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:08,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 17:48:08,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 17:48:08,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:08,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-08 17:48:09,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:09,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587755251] [2025-03-08 17:48:09,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587755251] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:09,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804642859] [2025-03-08 17:48:09,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:09,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:09,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:09,850 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) [2025-03-08 17:48:09,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 17:48:14,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 17:48:14,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 17:48:14,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:14,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:14,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 4018 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 17:48:14,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:48:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 17:48:15,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:48:15,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804642859] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:15,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:48:15,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-03-08 17:48:15,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724702342] [2025-03-08 17:48:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:15,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 17:48:15,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:15,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 17:48:15,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 17:48:15,248 INFO L87 Difference]: Start difference. First operand has 178 states, 100 states have (on average 1.16) internal successors, (116), 101 states have internal predecessors, (116), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 17:48:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:17,747 INFO L93 Difference]: Finished difference Result 351 states and 522 transitions. [2025-03-08 17:48:17,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 17:48:17,749 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2025-03-08 17:48:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:17,757 INFO L225 Difference]: With dead ends: 351 [2025-03-08 17:48:17,757 INFO L226 Difference]: Without dead ends: 175 [2025-03-08 17:48:17,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-08 17:48:17,766 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 239 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:17,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 671 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-08 17:48:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-08 17:48:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2025-03-08 17:48:17,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 97 states have (on average 1.1443298969072164) internal successors, (111), 99 states have internal predecessors, (111), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2025-03-08 17:48:17,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 240 transitions. [2025-03-08 17:48:17,820 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 240 transitions. Word has length 69 [2025-03-08 17:48:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:17,823 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 240 transitions. [2025-03-08 17:48:17,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-08 17:48:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 240 transitions. [2025-03-08 17:48:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-08 17:48:17,825 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:17,825 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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] [2025-03-08 17:48:17,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 17:48:18,026 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 [2025-03-08 17:48:18,027 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:18,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:18,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2095157621, now seen corresponding path program 1 times [2025-03-08 17:48:18,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:18,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442471955] [2025-03-08 17:48:18,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:18,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:21,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-08 17:48:22,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-08 17:48:22,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:22,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-08 17:48:23,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:23,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442471955] [2025-03-08 17:48:23,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442471955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:23,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372605358] [2025-03-08 17:48:23,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:23,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:23,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:23,398 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) [2025-03-08 17:48:23,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 17:48:27,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-08 17:48:27,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-08 17:48:27,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:27,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:28,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 4145 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 17:48:28,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 17:48:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 17:48:29,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 17:48:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372605358] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:48:29,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 17:48:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-03-08 17:48:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135323976] [2025-03-08 17:48:29,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:48:29,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 17:48:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:48:29,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 17:48:29,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-03-08 17:48:29,275 INFO L87 Difference]: Start difference. First operand 175 states and 240 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-08 17:48:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 17:48:33,235 INFO L93 Difference]: Finished difference Result 322 states and 451 transitions. [2025-03-08 17:48:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 17:48:33,235 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), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2025-03-08 17:48:33,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 17:48:33,238 INFO L225 Difference]: With dead ends: 322 [2025-03-08 17:48:33,238 INFO L226 Difference]: Without dead ends: 187 [2025-03-08 17:48:33,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-08 17:48:33,239 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 254 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-03-08 17:48:33,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 983 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-03-08 17:48:33,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2025-03-08 17:48:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2025-03-08 17:48:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 103 states have (on average 1.145631067961165) internal successors, (118), 105 states have internal predecessors, (118), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2025-03-08 17:48:33,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 257 transitions. [2025-03-08 17:48:33,257 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 257 transitions. Word has length 84 [2025-03-08 17:48:33,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 17:48:33,257 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 257 transitions. [2025-03-08 17:48:33,257 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), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-03-08 17:48:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2025-03-08 17:48:33,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-08 17:48:33,260 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 17:48:33,260 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:48:33,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 17:48:33,460 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,SelfDestructingSolverStorable1 [2025-03-08 17:48:33,461 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 17:48:33,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:48:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1846006283, now seen corresponding path program 1 times [2025-03-08 17:48:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:48:33,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165165242] [2025-03-08 17:48:33,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:33,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:48:37,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-08 17:48:38,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-08 17:48:38,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:48:38,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:48:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-03-08 17:48:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:48:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165165242] [2025-03-08 17:48:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165165242] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 17:48:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591648443] [2025-03-08 17:48:45,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:48:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 17:48:45,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:48:45,117 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) [2025-03-08 17:48:45,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 17:48:49,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes.